-
SERVICE MANUAL 6391
Installation, Operation and Maintenance
MICROCODE-Ill
Microprocessor-Based Coded Track Circuit System
~Ullll CORPORA TE ORIV~
F->1nsBuHGH. PA' 15231
for
CAB-ONLY OR CAB AND WAYSIDE SIGNALING SYSTEMS:
Color Light Signals Searchlight Signals
Position light Signals Color Position Light Signals
UNIT PART NO. N451667-2XXX
· August. 1989 A-08/89· 75-2850-1
ID221F, 0222F
r:1 Jl-'l'Hl(il 11 1 '.J!l!J. l ltJU)N •,;w1 rr;, f I!. 511.iNAI
JN(; PBINll 1• INUSA
-
,\EVISION INDEX
Revised pages of this manual are listed below_ by part number
and date of revision.
Page No. Rev. Date Page No. Rev. Date
-
Section
I GENERAL 1. l 1.2 1. 2 .1 l. 2. 2 I. 2. 3 l.2 .4 1.2 .5 1.2.5.1
1.2.5.2 1.2.5.3 1.3 1. 3 .1 1.3.1.1 1.3.1.2 1.3.1.3 1.3.1.4 l • 3.
2 1.4 1.5 1. 6 I. 6 .1 1. 6 .2 1. 6. 3 1. 6 .4 1.6 .5 1. 7 1.8
1.8.1 1. 8.2
1. 8. 3 1. 8 .4 1. 8. 5 1.8.5.1 1.8.5.2 1.8.5.3 1. 8. 6
II SYSTEM 2. 1 2.2 2.2.1 2.2.2 2.2.3 2.3 2. 3. 1 2.3.2
2.3.2.l
2.3.2.2
CONTENTS
INFORMATION 1-1 INTRODUCTION 1-1 OPERATION: GENERAL DESCRIPTION
1-l Unit Operation 1-1 Track Interface Overview 1-1 Executive
Microcomputer overview 1-l Keypad and LCD Funtions l-2 signal
Direct Drive Functions 1-2 signal Drive Power l-2 Fai lover Ori ve
Power 1-2 Serial Interface Circuitry 1-2 SPECIFICATIONS 1-2
Electrical 1-2 Battery l-2 Track 1-3 Logic Output Drive l-4 Serial
Interface 1-4 Environmental Specifications 1-4 GENERAL OPERATING
FEATURES 1-5 PHYSICAL DIMENSIONS l-6 HIGH CARDFILE COMPONENTS l-9
PCB cardfile 1-9 Keypad/Display Panel 1-9 Power-Off Switch Panel
1-9 AAR Panel 1-9 Local I/0 Panel 1-9 LOW CARDFILE COMPONENTS 1-11
GENERAL DESCRIPTION OF PCB TYPES 1-13 system Power Supply
(N451666-1001) 1-13 Executive serial and Executive Logic
(N451666-200l 1-13 and -2002) Logic I/0 (N451666-3001 and -3002)
1-13 conditional Power Supply (CPS) (N4516661-0l01) 1-13 cab Track
I/0 Subsystem 1-14 Cab Track controller PC3 (N451666-4101) 1-14 cab
communication Amplifier ?CB (N45l666-510l) 1-14 cab Amplifier PCB
(N451666-5201) 1-14 surge Suppressor N451666-6001, -61Q1, -6102)
l-14
HARDWARE CONVENTIONS 2-1 GENERAL DESCRIPTION 2-1 INTERLOCKING OR
TIE-IN LOCATIONS 2-1 Relay Interface with Double-Ended Unit Relay
Interface with Single-Ended Unit serial I/0 Interface With
oo,1ble-Ended Unit INTERMEDIATE SIGNAL LOCA'l'IQt!'.;
2-l 2-3 2-5 2-6
Intermediate Cab Generation
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CONTENTS (Cont'd)
Section
2.1.2. 3
2.3.1
2.3.3.1 2.3.3.2
2.3.3.3 2.3.3.4 2.3.3.5
2.3.3.6
Tnt·,~rmerli0te Cah Only Location wi: h T.Pft· .:1nri Hi•Jhl
7.-q Loc~l I/0 Intermediate Location With Cab Si·1nal Generation
and 2-\0 Wayside Signals One Signal in Each Direction 2-10 One
Signal in Each Direction With ~lectri.c Lock 2-ll and/or Local I/0
connections for Auxillary Track Codes Approach Signal In One
Direction 2-12 Double Approach With Switch Electric Lock 2-13
Intermediate Location in Cab and Wayside Signa.,s 2-14 System With
NWP Only Intermediate Location In Cab anct Wayside Si')na'. 2-15/16
System With Electric Switch Lock and/or Auxill~ry I/0
III SIGNAL SYSTEM OPERATION 3-1
3.1 INTRODUCTION 3.2 TRACK DATA BIT DESIGNATION 3.3 SIGNALING
BIT MAPPING LOGIC I/0 TO/FROM TRACK
DATA BITS 3.3.1 3.3.l.l 3.3.1.2 3.3.1.3 3. 3. 2 3.3.2.1 3.3.2.2
3.3.2.3 3.4 3.5 3.6 3.6.1 3.6.2 3.6.3 3.6.4 3.7
Cab Generation Only Signaling Data Auxiliary Track Codes
Programable Functions of Auxiliary Codes Cab Generation With
Wayside Si
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CONTENTS (cont'd)
Section
5.5 5.5.1 5.5.2 5.5.2.1 5.5.2.2 5.5.3 5.6 5.6.1 5.6.2 5.6.3
5.6.4 5.6.4.1 5.6.4.2 5.7
SOFTWARE FUNCTIONS Executive Software Application Software
Introduction Signal Functions In Standard Application Software
Question Table Operation SERIAL INTERFACES Introduction
MICROCODE-III/MICROLOK Serial Cables MICROCODE-III/MICROCODE-III
Serial Cables Interface Configurations EIA RS-423 20 mA Current
Loop O.S. TRACK CIRCUIT APPLICATIONS - SUPPf,EMENTAL
INFORMATION
5-23 5-23 5-23 5-23 5-25 5-27 5-32 5-32 5-32 5-32 5-33 5-33 5-35
5-37
VI INSTALLATION 6-1 6-1 6-1
VII
6.1 UNIT MOUNTING AND ENVIRONMENT 6.2 6.3 6.3.1 6.3.2 6.3.3 6.4
6.5 6.6 6.6.1 6.6.2 6. 6. 3 6.6.4 6.6.5 6.7
6.7.1 6.7.2
GENERAL WIRING PRACTICES OPERATING POWER 6-J Source 6-1 Wiring
and surge Protection 6-1 Unit Grounding 6-2 TRACK CONNECTIONS -
WIRING AND SURGE PROTECTION 6-2 SYSTEM PCB INSTALLATION 6-4 SIGNAL
AND/OR RELAY LOGIC INTERFACE 6-4 General 6-4 Selecting Logic A or B
6-5 Wiring 6-5 Output Loading 6-5 Standard I/0 Mapping 6-7 UNIT
POWER-UP AND PROGRAMMING LOCATION-DEPENDENT 6-ll VARIABLES
Introduction Keypad Programming [Configure Mode)
6-11 6-13
FIELD MAINTENANCE 7-1 7-1 7-1 7-2 7-2 7-2 7-4 7-10 7-10 7-12
7-12 7-14 7-14 7-15 7-18
7.1 7.2 7.3 7.3.1 7.3.2 7.4 7.5 7.5.1 7.5.2 7.5.3 7.5.4 7.5.4.1
7.5.4.2 7.5.4.3
GENERAL GUIDELINES PERIODIC INSPECTION, CLEANING GENERAL PCB
REPLACEMENT PROCEDURES Plug-In PCB's Display PCB N451668-9201 LED
DISPLAYS AND TEST JACKS REVIEW AND DIAGNOSTIC ?ROGRAMS (Via Keypad
and LCD) Initial Installation and Entry Into Operate Mode Operate
Main Menu Entering Operate Mode Sub-Modes Troubleshooting
Procedures [Ising Keypad/Display Unit Shut Down With Too Many
Faults Unit Operating Troubleshooting Using View Data Mo~e
iii
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Section
7.5.5 7.5.6 7.5.7 7.5.8
7.6 7.7 7.7.1 7.7.2 7.8
APPENDIX A
A.l A. 2 A. 3 A. 3.1 A.3.2 A.3.3 A.3.4 A. 4 A.4.1 A.4.2 A.4.3
A.5
APPENDIX B
B. l
B. 2
8.3
8.4 B. 5
APPENDIX c
CONTENTS (Cont' (1)
Pa,_1f!
Test Mode (Detailed Operation) 7-:J syrnhol Interpretation 7-2 3
complete Options Listing 7-24 Complete Error Messages anO
Corrective Actions 7-26 Listing MICROCODE-III TO MICROLOK SERIAL
LINK TROUflLESHOO'!'ING 7-47 EXECUTIVE PCBS TROUBLESHOOTING 7-47
Executive Serial PCB N451666-200J 7-47 Executive Logic PCB
N451666-2002 7-48 SYSTEM POWER SUPPLY PCB (N451666-1001) 7-48
TROUBLESHOOTING
PARTS LIST
CAB SIGNAL UNITS PRINTED CIRCUIT BOARDS EPROMS Executive Serial
PCB N451666-2001 Executive Logic PCB N451666-2002 Cab Track
controller PCB N451666-400l, -4101 Display PCB N451668-9201
COMMUNICATIONS CABLES MICROCODE-III to MICROLOK - EIA RS-423
MICROCODE-III to MICROCODE-III - PIA RS-423 Internal INSTALLATION
HARDWARE
CURRENT EXECUTIVE SOFTWARE REVISIONS
EXECUTIVE SERIAL PCB N45l666-2001 - EXECU'l'TVE
SOFTWARE
A-1 A-·;
A-3 A-1 A-4 11-4 1\-4 11-4 A-4 A-5 A-5 11-5
B-1
EXECUTIVE LOGIC PCB N451666-2002 - LOGIC SUBSYS'rEM B-1
SOFTWARE EXECUTIVE AND SERIAL LOGIC PCBS - APPLICATION SOFTWARE
CAB TRACK CONTROLLER PCB N451666-4001, -4101 SOFTWARE REVISION
NOTIC'E DOOR TAG
APPLICATION NOTES
iv
B-1
3-1 B-2
-
Figure
1-1
1-2
1-3
1-4
1-5
1-6
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
ILLUSTRATIONS
High Cardfile - Intermediate Signal or Cab Only with NWP and/or
WL, or End with Relay Interlocking Logic
Low Cardfile - Intermediate Cab Only or End with MICROLOK Serial
Port
High cardfile Perspective View
Low Cardfile Perspective View
General Arrangement of Unit
System Block Diagram
Control Point or Tie-In With Relay Interface -Double Ended
Control Point or Tie-In With Relay Interface -Single Ended
Controlled (End) Point Using Interface to MICROLOK for Local I/0
Logic (Double Sided)
Intermediate Location With cab, Using No Local I/O
Intermediate Location With Cab, Using Auxiliary I/0 or Switch
I/0 (Example #1)
Intermediate Location With cab, Using Auxiliary I/0 or Switch
I/0 (Example #2)
Intermediate Location With cab, Using Auxiliary I/0 or Switch
I/0 (Example #3)
Intermediate Location - One Signal in Each Direction
Intermediate Location - One Signal in Each Direction With
Auxiliary Logic I/0
Intermediate Signal Location - Approach
Intermediate Signal Locatioa - Double Approach (Example U)
Intermediate Signal Location - Do11ble Approach (Example #2)
Intermediate Signal Location - Double Approach (Example #3)
v
1-7
1-8
1-10
1-11
1-12
1-15/16
2-2
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-14
2-15/16
-
Figure
3-l
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
3-13
. 4-1
4-2
5-1
5-2
5-3
5-4
5-5
ILLUSTRATIONS (Cont'd)
Track Message Encoding - Cab-Only Syst
-
Figure
5-6
5-7
5-8
5-9
5-10
5-11
5-12
5-13
5-14
5-15
5-] 6
5-17
5-J.8
5-19
5-20
5-21
5-22
5-23
5-24
ILLUSTRATIONS (Cont'd)
Typical Searchlight Application, Left Side Approach 5-7 Location
(Cab with Wayside or Wayside Only)
Typical Color Light Application, Intermediate Location 5-8 (Cab
with Wayside or Wayside Only)
Typical color Light Application, Side "A" (Left) APH 5-9
Interface (Cab with wayside or Wayside Only)
Typical color Light Application, Side "B" (Right) APH 5-10
Interface (Cab with Wayside or Wayside only)
Typical Position Light Application, Intermediate Location 5-11
(Cab with Wayside or Wayside Only)
Typical Position Light Application, Approach Location 5-12 (Cab
with Wayside or Wayside Only)
Typical Electric Lock Application, Right Side Switch 5-13 (Cab
Signal Only)
Typical Electric Lock Application, Left Side Switch 5-14 (Cab
Signal Only)
Typical Electric Lock Application, Left Side Switch 5-15 (Cab
with Wayside)
Typical Electric Lock Application, Right Side Switch 5-16 (Cab
with Wayside)
Searchlight Intermediate Units - Cross Feeding Approaches 5-17
(Cab with Wayside or Wayside Only)
General configuration of Units 5-19
Executive and Application Software EPROMs 5-24
NWP (Hand Throw Switch) Operation - Reference Diagram 5-25
Electric Lock Release Switch Location - Reference Diagram
5-26
"Daisy-Chained" MICROCODE-III Units - EIA Communications
5-34
Display PCB Jumpers 5-35
"Daisy-Chained" MICROCODE-II! Uni ::s - C.L. Communications
5-36
Typical End Of Siding with MICROCODE-III Used to Generate 5-37
Cab in o.s. Tracks
vii
-
Figure
5-25
6-1
6-2
6-3
6-4
6-5
6-6
7-1
7-2
7-3
7-4
7-5
7-6
7-7
7-8
ILLUSTRATIONS (Cont'd)
Typical Crossover with MICROCODE-III Osen to GeneratP. Cab in
o.s. Tracks
AAR Terminal Strip Wiring
Front Connector Panel and Surge PCB/Loqic PCB Cable
Standard I/0 Mapping for Searchlight Signals, With Cah
Standard I/0 Mapping for Color or Position Light Signals, With
Cab
Standard I/0 Mapping for Cab-Only Appl i.cations
Executive and Application Software EPROMs
Display PCB Removal
General l\rrangement and Functions of System LEDs an:1 Test
Jacks
System Power Supply PCB LEDs and Test ,lacks
Conditional Power Supply PCB LED and Test Jacks
Executive Serial and Executive Logic PCB LED(s)
Logic I/0 PCB LED
Cab Track Amplifier PCB LEDs and Adjustments
Keypad Operation
\Ji ii
5-18
6-3
6-fi
6-8
6-1 0
6-12
7-3
7-5
7-6
7-7
7-8
7-8
7-9
7-11
-
1.1 INTRODUCTION
SECTION I GENERAL INFORMATION
MICROCODE III is a microprocessor-based solid-state track
circuit system designed to work in non-electrified railroad
territory. MICROCODE III provides track communication of all signal
information as well as four spare track codes as detailed in
Section III. MICROCODE III (Cab Version) includes the logic to
determine the appropriate cab code to transmit for the various
signaling conditions, and the hardware to deliver "hi-energy• coded
100 Hz carrier to the track circuit. The cab amplifier will deliver
sufficient cab signal to have 2 amps of cab signal current at the
entering end with a maximum track circuit length of 8000 feet. It
also provides broken rail protection and broken down insulated
joint protection.
1.2 OPERATION: GENERAL DESCRIPTION
l.2.1 Unit Operation
A MICROCODE III Cab Unit can be used to control two ends of
track circuits at intermediate and end (control point) locations.
It can be used to supply cab code to the rails inside the
interlocking, but should not be used for vital shunt detection for
the O.s. circuits; refer to the detailed application information in
Section v. Intermediate locations can also direct drive signals
with the appropriate PCB's and application software.
1.2.2 Track Interface Overview
The MICROCODE III cab unit track interface cab signal
transmitter is connected to the rails through a 100 hz bandpass
filter to provide sufficient impedance to overlay equipment above
500 Hz. The cab amplifier output impedance is not high enough to
afford compatibility with motion and constant warning time
predictor highway crossing protection systems. Track circuit
communication is carried via two signals: an information channel
that is full-duplex and a broken rail detection signal that is
half-duplex. (Refer to section III for detailed operation of track
circuit systems.)
1.2.3 Executive Microcomputer overview
The executive microprocessor continually performs diagnostics on
all of MICROCODE III circuitry and removes output drive power (via
shut down of the CPS) in the event of any circuit failure that
would result in improper outputs being energized. These "Faults",
as well as abnormal events such as noise or any intermittant
circuit operation, are recorded by the executive microprocessor.
They can be recovered ("read") via the key pad and LCD (liquid
crystal display) to facilitate quick location of failures. This
minimizes maintenance time required to put·. failed units back in
service. Failure data is presented in english text (i.e. "HARDWARE
FAILURE LOGIC R "BRD). Refer to Section VII for complete listing of
all failure data.
6391, p. l-1
-
1.2.4 Keypad and LCD Funtions
The Keypad and LCD are also used to monitor normal system
information such as track codes received/transmitted, logic I/0
input/output etc. The Keypad and LCD also provides the means for
field programming location ilependent parameters such as stick
enable, approach/ steady lighting, signal upgrading etc. Therefore
only 2 different EPROM'S are required for any given system: one for
end units and one for intermediate signal locations.
1.2.5 Signal Direct Drive Functions
MICROCODE III units can direct drive Color light, Search light
and Position light signals. Hot and cold filament checks and stuck
search light mechanism checks are provided internally, and
automatically result in signal tumble-back when a signal
malfunctions.
1.2.5.1 Signal Drive Power
Signal light drive power is a regulated 12.6 volts from the
conditional ?ower supply (CPS) for enchanced life of signal lamps,
as well as constant lig'1t intensity over a wide range of battery
voltage.
1.2.5.2 Failover Drive Power
Internal circuitry is provided to light the Red aspect in the
event of system failure.
1.2.5.3 Serial Interface Circuitry
RS-432 or 20 mA current loop circuitry is proviiled for a link
between MICROCODE III Units and MICROLOK where MICROLOK is used to
perform the vital .interlocking logic. This minimizes MICROCODE I1I
hardware as shown in Figure 2-3 on page 2-6.
1.3 SPECIFICATIONS
1.3.l Electrical
l.3.l.l Battery
Voltage: 12.6 Vdc nom.
Operating Range: 9.8 to 16.2 Vdc
Maximum Ripple: 0.5',f P.P.
Charger: Constant Voltage
6391, p. 1-2
-
surge Suppression:
Lead Size:
current:
1.3.1.2 Track
Length:
surge Protection:
Primary: 25 Amps use USSPll N451552-0504
Secondary: Common Mode Filter N451552-J.001
5KP16A Transzorb and .22 mFd 50V capacitor mounted on MICROCODE
AAR battery terminals.
Sufficiently low enough to have a maximum of 0.2 v drop at
maximum current. Refer to installation on page ?-? •
Cab Only:
Nominal: @ 13.2 battery= amps 8000 ft. track circuit and 3
ohm/1000 ft. ballast and low battery
With Signals:
Cab requirements (above)+ (Lamp load (amps/ .65))
Nominal 8,000 ft. max. at 3 ohm/1000 ft. ballast and 118 lb.
welded rail.
Primary: USGA (Qualified*) Low Voltage arrester N451552-0101
(Blue) as equalizer (across track leads). USGA High Voltage
arrester N451552-0201 (Red) each rail to earth ground.
Secondary: Track surge Suppressor TSS-101 N451552-0901 in each
set of track leads mounted as close as possible to the MICROCODE
III unit.
* Qualified USGA "Blue• arresters (N451552-0101) have been
factory tested to work with microprocessor-based equipment.
Qualified "Blues• have a green line on the top and bottom of the
plastic dust cover so as to be clearly visible on units as they are
installed on in the field.
6391 , p. J -3
-
Noise Suppression:
Lead Length:
1.3.1.3 Logic Output Drive
Isolation:
Lamp:
Relays:
surge Suppression:
1.3.1.4 Serial Interface
Application:
communication Modes:
1.3.2 Environmental Specifications
Temperature Range:
Humidity:
Physical Loads:
Common Mode Filter CMF-101 N451552-1001 in each set of track
leads mounted as close as possible to the MICROCODE III unit.
500 ft. max., #6 twisted pai~.
Fully isolated lamp or relay drive.
12.6 Vdc nominal, regulated
50 Wat ts/output
150 Watts maximum from unit.
Internal hot and cold filament check. nRedn output energized
when unit is off or failed.
12 Vdc Nominal
::>150 ohm coil with drop out voltage >1.8 Vdc.
Provided internally. (Note: Refer to Appendix c, Application
Note 502-MCD3-3).
Standard in all units
EIA RS423 up to 50 ft. 20 mA current loop for distances greater
than 50 ft. up to 10,000 ft. loop with 6 units, max.
95% non-condensing humidity
G v•bration and shock. 1.0 G RMS, 0.2' displacement 1.4 G pea~ 5
- 1000 Hz
6391, p. 1-4
-
1.4 GENERAL OPERATING FEATURES
Adjustments:
Track Codes:
Keypad-Selectable Functions: *Protected with access security
code
PCB Interchangeability:
Logic I/0 PCB:
Track circuit: Track Length
Lamp/relay outputs: Programmed from keypad when installed.
Remove jumper on I/0 Surge Suppression PCB for relay outputs.
Cab current: Pot adjustment on Cab Amplifier PCB (-5201) for
each track circuit.
256+
1. Lamp/relay output
2. Approach/Steady signal lighting internal power off
detection
3. Stick enable (both directions)
4. Auto upgrading (both directions): H H H FH H D FH - FH
FH - D
5. Block initiate/repeat (both directions)
6. Auxillary codes I/0 or repeated each independently in both
directions
7. NWP break aux codes independently both directions
8. WL timer O to 16.6 mins. in 1 sec. increments
* one EPROM on Executive board
N451666-3001: 50 Watts per output N451666-3002: Si-Polar outputs
Internal Hot & Cold filament check Red signal lit (failover
during reset and shutdowns)
6391, p. 1-5
-
Misc. Features:
Misc. Information:
1.5 PHYSICAL DIMENSIONS
Motion/Overlay compatible (no external blocking units)
Internal secondary surge suppression on all Logic I/0
Clear text diagnostics display
Internal mech check for searchlight ~ignals.
Transzorb: 5KP16A - US&S J792735-00l0
Signal Blocking Diodes: MR756 - US&S J726150-0186
or MR824 - US&S J726150-Cl40
~ICROCODE III units are provided with mounting brackets that
allow shelf, wall or 19-inch rack mounting. Figure 1-1 on page 1-7
gives mounting dimensions for the "High" Cardfile used where Local
I/0 interface to relays or lamps is required. Figure 1-2 on page
1-8 gives mounting dimensions for the "Low" cardfile where a
repeater unit or serial port I/0 is used.
6391, p. 1-6
-
17-3/16" 11-1/2"
I 0 0 0 0 00 0 0 0 0 0 0 0 0 I = 0
p
p
lo
k)
0
0
lo ~
........
1/2" ~
- - ~
- - -[:=:! o» ON ODDO ol lo ODDO [c:=1 DODO ol lo 0 DODO MAIN
POWER
[g] [Q]
-18-15/16"
15-9/16" •I
SHELF-MOUNT HOLES
c 1-3/4"
c 2-1/4"
c t 3"
c :+:
l 11" 31-3/ 16"
,l t
3"
c * 2-1/4" c
1-3/4" c
.....
__L 2-5/16"
T 7"
1
= = = = = = = = = = = = = = = = = = = 0 = = le = = = = = = = = =
= = = 0 = = c = = = = = = = = = = = = = = = = = =
0 = = c = = ~ ~
BRACKET IN RACK-MOUNT
POSITION
BRACKET IN WALL-MOUNT i
POSITION
HIGH CARDFILE
INTERMEDIATE SIGNAL
OR
CAB ONLY WITH NWP
AND/OR WL
OR
END WITH RELAY
INTERLOCKING LOGIC
Figure 1-1. High cardfile - Intermediate Signal or cab only with
NWP and/or WL, or Ena with Relay Interlocking Logic
6391,p.J-7
-
,._-----17-3/16" ------+Ill I 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I
0 c::J 0000 Qt, ON p ODDO t=i ol Jo ODDO
cl (o DODO MAIN POWER
0
0 [g] [g]
0
0
0
- ..... -18-15/16"
1/2" ~-----15-9/16"
-+ -
l I
-SHELF MOUNT HOLES
I T
1 T
·•
c 1-3/4"
c i
3-1/2"
c t 24" 7"
c _j_ i
3-1/2"
c_1_ 1-3/4"
c -
_l 2-5/16"
T 7"
1
r--- 11-1/2" = = = = = 0 = = c = = = = = = = = = = = = 0 = = 0 =
= = = = = = = = = = = = = = = = =
0 = = c = = ~ -
1 1 BRACKET IN
RACK-MOUNT POSITION
BRACKET IN WALL-MOUNT
POSITION
LOW CARDFILE INTERMEDIATE
CAB-ONLY OR END
WITH MICROLOK SERIAL PORT
Figure 1-2. Low Cardfile - Intermediate Cab Only or End with
MICROLOK Serial Port
6391, p. 1-8
-
1.6 HIGH CARDFILE COMPONENTS
The High cardfile shown in Figure 1-3 on page 1-10 is made up of
five basic sections.
1.6.1 PCB Cardfile
The PCB cardfile has card slots for nine 8.35" x 12.75"cards.
These are the main PCB's of the system, i.e. CPU, Logic I/0 and
Power supplies. A PCB Motherboard provides interconnections for the
system PCB's via the bottom PCB connector.
1.6.2 Keypad/Display Panel
This section houses the Keypad, Liquid Crystal Display (LCD) and
serial interface circuitry. The EPROM used for storing the
configuration (programmable) information is contained, along with
the serial interface circuitry, on a printed circuit board mounted
be~ind the Keypad/Display front panel. Two 25-pin connectors are
provided to allow daisy-chaining of the serial link cable in
multiple MICROCODE-III applications. A printed circuit is mounted
in the back of this section as shown on Figure 1-5 page 1-11. Track
circuit interface components are mounted on this PCB.
1.6.3 Power-Off Switch Panel
The main battery power is switched on/off by the rocker switch
mounted on this panel.
l. 6. 4 AAR Panel
The AAR panel provides 14 AAR terminals to connect Battery,
Tracks etc. to the unit as shown in Figure 1-5.
1.6.5 Local I/0 Panel
This panel houses the Buchanan brand connectors for making
connections to relays or signal lamps. surge suppression PCB's are
mounted in this section as shown on Figure 1-5. This section also
houses the failover (FO) unit that energizes the "Red" aspect when
the unit has failen.
6391, p. 1-9
-
1/0 PANELS
LCD
SERIAL INTERFACE
KEYPAD
PCB CARDFILE
0
0
0
0
RACK OR WALL-MOUNT
BRACKET
Figure 1-3. High Cardfile Perspective View
6391, p. l-·10
31-1/4"
-
1.7 LOW CARDFILE COMPONENTS
The Low Cardfile is shown on Figure 1-4 below. It houses the
hardware requried for a system at interlockings with Microlok i.e.
serial interface or intermediate locations where no logic I/0
(relays or lamps) are requirerl. It is comprised of identical
sections as the high cardfile with the Local I/0 panel omitted.
LCD
SERIAL INTERFACE
KEYPAD
PCB CARDFILE
0
0
0
RACK OR WALL-MOUNT
BRACKET
Figure 1-4. Low Cardfile Persoective View
6391, p. 1-11
25-3/4"
-
"' w "' ,..., 'O
,_. I ·-N
"' ,... "' ,:: " CD ,_. I '-"
"' CD :::, CD
" "' ,_. :,,,
" " "' :::, "' CD 3 CD :::, ..... 0
"' a :::, ,... .....
1/0 CABLING SLOTS
1/0 PANEL AND
CONNECTOR (ATTACHED TO
SURGE SUPPRESS. PCB)
LCD DISPLAY
SERIAL DATA PORTS
STORE ENABLE BUTTON
KEYPAD
WALL OR RACK
MOUNTING BRACKET
SYSTEM PCB SLOTS
/ oooooo 0 0 °0 °0 °0 ooooj
~
o, ~!!' ~!!' 00 DO
ii ~!
MAIN POWlR
''[QJ'
- 111111111 A B C D F G H
AAR TERMINALS
SURGE \ SUPRESSION PCB
TRACK 1: SELECTOR ......____ ; ........
POWER --J;::::::: SWITCH : ..•. :;.: , .. ··:·t:
DISPLAY PCB
---------
I .... /
''A~ CARD EDGE I CONNECTOR ' "B• CARO EDGE
CONNECTOR
-SYSTEM Pee•
MOTHERBOARD I'
GENERAL UNIT CONFIGURATION CAB SIGNAL VERSION
--------,.----------1/0 COMPONENTS
ABSENT FROM THIS SECTION IN REPEATER AND
I SERIAL INTERFACE
UNITS
-------- + --------m ;,; I 11 TRANSMIT/
:••··~-'.J RECEIVE TRANSFORMER PCB
"" 100 HZ
Fil TER PCB
I II AND
TRANSFORMER
' RIBBON CABLE
TO DISPLAY PCB
I 'II
WIRING BUSS CONNECTORS
BATT • BATT + CPS +
D I I
REAR VIEW &_ INTERMEDIATE UNITS WITH SIGNALS
I II
II
II
-
1.8 GENERAL DESCRIPTION OF PCB TYPES (See Figure 1-6 for Block
Diagram)
1.8.l system Power supply (N451666-1001)
The system power supply converts input battery power to
regulated 5V and(+) and (-) 15V regulated power to operate all of
the electronic circuitry including the microprocessors. This power
is distributed to the system PCB's over traces on the common Mother
PCB.
1.8.2 Executive serial and Executive Logic (N451666-2001 and
-2002)
There are two types of computer PCB's. The Executive Serial PCB
N451666-2001 is comprised of the main or executive microprocessor
and associated circuitry. This PCB is used in the 'Low• cardfile
where no local I/0 is present.
The Executive Logic PCB N451666-2002 includes the same main
microprocessor as above and also includes another microprocessor
that controls all local I/0 hardware.
The Executive Serial and Executive Logic PCBs always reside in
cardfile slot F.
1.8.3 Logic I/0 (N451666-3001 and -3002)
The N451666-3001 Logic I/0 PCB provides the circuitry to
interface to relays or Color or Color-Position Light signals. Each
PCB has eight inputs and eight outputs. Up to three Logic I/0 PCBs
can be housed in cardfile slots c, D, and E. The -3002 Logic I/0
PCB also provides eight inputs and eight outputs. This PCB has two
bi-polar outputs to drive two searchlight signal mechanisms. Refer
to Section II for detailed configurations.
1.8.4 Conditional Power Supply (CPS} (~4516661-0101)
The CPS PCB outputs drive power for both relays and lamps in
cardfile applications where local I/0 is used. This PCB always
resides in cardfile slot A. The CPS is controlled by a 500 Hz
signal provided by the microprocessor. If the microprocessor
detects hardware failures or itself fails, the 500 Hz control is
removed from the CPS. The CPS circuitry is vital and thus output
drive power can be vitally removed in the event of a system
failure. The CPS can provide up to 150 watts of regulated 11.6 volt
power to drive.signals and/or relays.
6391, p. l-13
-
1.8.5 Cab Track I/0 Subsystem
1.8.5.1 Cab Track Controller PCB {N451666-4101)
The Cab Track Controller PCB is comprised of a microprocessor
and receiver circuitry for both the track communication and broken
rail signals. The microprocessor communicates with the Executive
Microprocessor on the -2001 or -2002 PCB to receive commands for
the "data• message to be transmitted, and to inform the Executive
of what "data• is received from the track. The microprocessor on
the -4101 PCB translates the data formats into an actual track
message format for either transmitting or receiving. The -4101 PCB
~icroprocessor also controls the cab amplifier upon receipt of cab
signal code rate data and shunt detection data.
l.8.5.2 Cab Communication Amplifier PCB (N451666-5101)
The -5101 PCB is comprised of transmitter circuitry for both the
track data communication and the broken rail signal.
1.8.5.3 Cab Amplifier PCB {N451666-5201)
The -5201 PCB is comprised of an amplifier (with proper control
circuitry) to generate the coded 100 Hz cab signal to be
transmitted over the rails. ,t also includes the adjustments to set
the transmitted cab level for conditions (track length) at the
specific locations.
1.8.6 surge Suppressor N451666-6001, -6101, -6102)
surge suppression PCBs N451666-6001, -6101, and -6102 provide
secondary surge protection for local I/0 connections. The -6001 PCB
is used for relay interfaces, the -6101 for color or Color Position
Light interfaces, and the -5102 for Searchlight signal
interfaces.
6391, p. J-14
-
,,, ,-,.
-
SECTION II SYSTEM HARDWARE CONVENTIONS
2.1 GENERAL DESCRIPTION
This section describes the relationship between specific
MICROCODE-III PCB's and how they interface to Signal systems.
2.2 INTERLOCKING OR TIE-IN LOCATIONS
2.2.1 Relay Interface with Double-Ended Unit
Figure 2-1 on page 2-2 shows a MICROCODE III unit equipped with
the maximum number of PCB's. The end unit functions as two
independent systems, each servicing an end of a track circuit.
The left (or "A") side system associates the "A" track signals
with the Logic I/0 "A" PCB, and the Logic I/0 Panel A. The •c•
Logic I/0 PCB can be installed as shown to input or output auxi
l.lary track codes. One half of the Logic I/0 •c• PCB (card slot
"E", 4 inputs and 4 outputs) is associated with the "A" track
communication. Hardware inputs/outputs are made through the left
side of I/0 panel •c•.
The Right (or "B") side associates the right "B" track signals
with the Logic I/0 "B" PCB (card slot D) and associated "B" I/0
panel. The other half of the Logic I/0 •c• PCB (card slot "E", 4
inputs and 4 outputs) is associated with the "B" track
communication. Hardware inputs/outputs are made through the right
side of the I/0 Panel •c•.
It should be noted that the end unit functions as two
independent systems. Therefore, track connections need not be
connected as shown in Figure 2-1, but can be used for any track
circuit ends desired.
Note
Refer to restrictions on cab "end" track connection in
application Section Von page 5-4.
6391, p. :-1
-
Wl
W2
TRACK A
8 INPUTS
8 OUTPUTS
4 INPUTS
4 OUTPUTS
INTERFACE CKTS. AND CPU
CONTROL LOGIC
LOGIC 1/0 BOARD A
SLOT C
LOGIC 1/0 PANEL A
LOGIC 1/0 PANEL C
LOGIC 1/0 BOARD C
SLOT E
' INTERFACE CKTS.
AND CPU CONTROL LOGIC
t LOGIC 1/0 BOARD B SLOT D
LOGIC 1/0 PANEL B
LOGIC 1/0 PANEL C
El
TRACK B
==!> 8 INPUTS -8 OUTPUTS
-------------------------------------------------------------------------------------------
LOGIC 1/0 PANEL A
A B TK TK
I I
00000000000000
o· o· DC -=- ~ ~ -=-... L. ..... -~ : = ........ = ........
A B C O E F G H
LOGIC 1/0 PANEL C
LOGIC 110 PANEL B
CONTROL POINT OR
TIE-IN WITH RELAY INTERFACE
M ~~ ~ 1 J I ti ~~::~~~~~~~CATION AMP. LOGIC 110 A I CAB TRACK
CONTROLLER LOGIC 1/0 B EXECUTIVEILOGIC
LOGIC 1/0 C -----~
Figure 2-1. Control Point or Tie-[n Wi:h Relay Interface -
Double Ended
6391, p. 2-2
-
2.2.2 Relay Interface with Single-Ended Unit
The configuration shown in Figure 2-2 on page 2-4 is referred to
as a "single ended end unit". The hardware installed only provides
an interface to the left or "A" side. Logic I/0 "A" (card slot C),
Logic I/0 Panel "A", and a surge suppressor PCB are installed to
use the left (A) side of this system. Figure 2-2 shows the Logic
I/O PCB •c• (slot E), associated Logic I/0 Panel •c• and the •c•
Surge Suppressor PCB installed to handle auxillary codes in and out
of the unit.
In some instances, as will be seen in the System Operation
section, a single ended unit can be comprised of the "B" Logic I/0
PCB (slot O), associated I/0 panel Rs•, and a Rs• surge suppressor
PCB. Four auxillary track signals can be input/output to this side
by installing Logic I/0 PCB •c• (card slot E), the associated I/0
panel •c•, and the •c• surge suppressor PCB.
6391, p. ?-3
-
W1
W2
TRACK A
8 INPUTS
8 OUTPUTS
4 INPUTS
4 OUTPUTS
INTERFACE CKTS. AND CPU
CONTROL LOGIC
LOGIC 1/0 BOARD A
SLOT C
LOGIC 1/0 PANEL A
LOGIC 1/0 PANEL C
LOGIC 1/0 BOARD C SLOT E
A B TK TK
I I --00000000000000 -~·
I 7
LOGIC 1/0 PANEL A - Q·· ····: = =
A B C
(PS Jill SYS PS.~
LOGIC 110 A
-~c
I 7
E F G H
LOGIC 1/0 C ------
LOGIC 1/0 PANEL C
CAB AMPLIFIER
CONTROL POINT OR
TIE-IN WITH RELAY INTERFACE
CAB COMMUNICATION AMP
CAB TRACK CONTROLLER
EXECUTIVE/LOGIC
Figure 2-2. Control Point or Tie-In With Relay Interface -
Single Ended
639_1, p. ?-4
-
2.2.3 serial r/o Interface With Double-Ended Unit
Pigure 2-3 below shows the configuration for a double-ended unit
using the serial I/0 port to MICROLOK. Again, notice that there is
an "A" (left) side and a "B" (right) side. This unit also functions
as two independent track circuit ends and therefore can be
connected to a~y combination of track ends desired. Note: Refer to
restrictions on cab "end" track connection in application Section v
on page 5-4.
Wl A I
'
' W2 B I I El t' ' • TRACK INTERFACE TRACK INTERFACE
TO MICROLOK
CIRCUITS
t
• .. CPU CONTROL
LOGIC
t SERIAL
INTERFACE
t TO MICROLOK
A B TK TK
I I 00000000000000
=
.
A B C E F G H
CIRCUITS
t
CONTROLLED (END) POINT USING INTERFACE
TO MICROLOK FOR LOCAL 1/0 LOGIC
DOUBLE SIDED
SYS PS. _J ~L CAB AMPLIFIER ~ CAB COMMUNICATION AMP
(AS TRACK CONTROLLER
-- EXECUTIVE/LOGIC
Figure 2-3. control.led (End) Point Using Interface to MICROLOK
for Local I/0 Logic (Double Sided) (PCB Configuration I,Jentical
for Singl
-
2.3 INTERMEDIATE SIGNAL LOCATIONS
2.3.l Intermediate Cab Generation Only Location
Figure 2-4 below shows the PCB complement required for an
intermediate location where no local I/0 is required. Cab is
generated in accordance with the received track signal information
and the application software installed. The application software is
comprised of logic rules for the specific cab signaling system
defined by the equipment user and programmed into "firmware" ~y
US&S. The application firmware resides in IC 32 of Executive
PCB N451666-2001 or -2002.
A
. LOGIC &
INTERFACE CIRCUITS
I
I
A B TK TK
I I ......... 00000000000000
= =
AB EFGH
B
LOGIC & INTERFACE CIRCUITS
INTERMEDIATE LOCATION WITH CAB
USING NO LOCAL LOGIC 1/0
SYS PS _J ~L CAB AMPLIFIER
L CAB COMMUNICATION AMP CAB TRACK CONTROLLER
---- EXECUTIVE/LOGIC
Figure 2-4. Intermediate Location ~ith cab, Using No Local
I/0
639], p. :--6
-
2.3.2 Intermediate Cab only Location with Local I/0
2.3.2.1 Intermediate Locations With Left Or "A" Side Local
I/0
~igure 2-5 below shows the PCB complement required at an
intermediate location where an NWP or the NWLP, AOTR and WL are
cabled in from the left "A" side of the unit. Note that the Logic
I/0 "B" PCB (card Slot D) serves to interface all local I/0
associated with the "A" track or left side of the unit. The local
inputs and outputs for this configuration are connected to the unit
via Logic I/0 Panel "B" with a surge suppression panel installed in
the "top" 3 card Slot. Auxillary inputs/outputs associated with the
left side of the unit (Track A) that are to be physically input or
output from the unit, are also connected via I/0 Panel B.
/ A B . I I I
LOGIC AND
I INTERFACE CIRCUITS
1 NWP LOGIC 110 AOTR BOARD B WL SLOT D
1 8 INPUTS ==!) LOGIC 1/0 8 OUTPUTS
-
2.3.2.2 Intermediate Location With Right "B" Side Local I/0
Figure 2-6 below shows an intermediate location with local I/0
on the "B" side only. Note that the I/0 is connected to the I/0
Panel •c• which is associated with I/0 PCB •c• installed in Card
Slot E. The Right or "B" side I/0 is 3ssociated with the track
connected to the "B" Track or Right Track AAR terminals.
A I
B
I t LOGIC AND INTERFACE CIRCUITS
t LOGIC 1/0 BOARD C
SLOT E
t LOGIC 1/0 PANEL C
/ ••
NWP AOTR WL
• f:::J= 8 INPUTS ==!> 8 OUTPUTS
------------------------------------------------------------------------------------------A
B
TK TK I I
00000000000000
l~----1- LOGIC 1/0 PANEL C
= = • • • • ' . ' . ' . ' . • • . ' ' ' ' . . ' • • • • • • • •
' ' ' ' • •
ABCDEFGH
.. ~~~ 1 LOGIC 110 C
INTERMEDIATE LOCATION WITH CAB USING AUXILIARY 1/0
OR SWITCH 1/0
CAB AMPLIFIER
CAB COMMUNICATION AMP
CAB TRACK CONTROLLER
EXECUTIVE/LOGIC
Figure 2-6. Intermediate Location Wi,h Cab, Using ~uxiliary I/0
or Switch I/0 (Example #2)
6391, p. "-8
-
2.3.2.3 Intermediate Cab only Location With Left and Right Local
I/0
Figure 2-7 below shows an intermediate location ~ith local I/0
connected to both sides. Again, the I/0 PCB "B" (Card Slot DJ is
associated with the "A" track connections and I/0 PCB "C" (Card
Slot E) is associated with the "8" Track connections.
/
NWP AOTR WL
8 INPUTS
8 OUTPUTS
A
LOGIC AND INTERFACE CIRCUITS
LOGIC 1/0 BOARD B SLOT D
LOGIC 1/0 PANEL B
A 8 TK TK
I I
8
LOGIC AND INTERFACE CIRCUITS
LOGIC 1/0 BOARD C
SLOT E
LOGIC 1/0 PANEL C
/
NWP AOTR WL
-
2.3.3 Intermediate Location With Cab Signal Generation and
Wayside Signals
2.3.3.1 One Signal in Each Direction
Figure 2-8 below shows the PCB complement for an intermediate
location in a system where cab generation and wayside signals are
both used. The Logic I/0 "A" PCB is used to drive the "A" head
signals in both directions. In this type of a system, also note
that the left and/or right NWP is connected to the unit via the "A"
I/0 Panel and the "A" Logic I/O PCB.
! INTERFACE CKTS.
AND CPU CONTROL LOGIC
1 ~ "A" SIDE
LEFT NWP INPUT WHEN REQUIRED
t A B
' I
LOGIC 1/0 BOARD A
SLOT C
LOGIC 1/0 PANEL A
A B TK TK
I I
t I i
INTERFACE CKTS. ';I
AND CPU CONTROL LOGIC
t
"B" SIDE
. ~
RIGHT NWP INPUT WHEN REQUIRED
00000000000000
-
~· l ..,.___
LOGIC r,o PANEL A -Y::::::~ 1 ...... 1 c:=::J : : c::=:J :
...... :
A 8 C D
SYS ~PSS :=!-1 t LOGIC 1/0 A =--J
F G H
INTERMEDIATE (ONE SIGNAL IN
EACH DIRECTION)
~ CAB AMPLIFIER CAB COMMUNICATION AMP CAB TRACK CONTROLLER
EXECUTIVE/LOGIC
Figure 2-8. Intermediate Location - One Signal in Each
Direction
-
2.3.3.2 One Signal in Each Direction With Electric Lock and/or
Local I/0 Connections for Auxillary Track Codes
Figure 2-9 below shows the PCB complement required for an
intermediate location with both cab signal generation and wayside
signals with requirement for AOTR input and WL output for a switch
electric lock control. The AOTR and WL connections to the unit are
made through Logic I/O Panel c and associated surge Suppressor PCB
and the Logic I/0 PCB "C" (card Slot E). Logic I/0 and Panel c and
I/0 PCB •c• also provide the connections to bring auxillary track
codes into and out of the unit where desired.
A
ELE
• INTERFACE CKTS. AND CPU
CONTROL LOGIC
'
"A" SIDE
LEFT NWLP INPUT WHEN REQUIRED
UX CODES LEFT AND/OR
-
2.3.3.3 Approach Signal In One Direction
Figure 2-10 below shows a typical approach in one direction and
a single signal in the opposite direction. As in a normal
intermediate location, the Logic I/0 "A" PCB (card slot C) services
the "A" signal heads in both directions. The Logic I/0 "B" PCB
(card slot D) is installed to control the a signal head. The Logic
I/0 "A" PCB has two inputs designated as NWP inputs, one for each
side.
WA WB
_.:,,.) _.:,,.) I', A B . I
+ I + I " " ~ INTERFACE CKTS. INTERFACE CKTS. E AND CPU AND CPU
''
A
CONTROL LOGIC CONTROL LOGIC
... LOGIC 1/0 . BOARD A
SLOT C "A" SIDE "B" SIDE
LOGIC 1/0 LEFT NWP PANEL A - RIGHT NWP INPUT INPUT WHEN
REQUIRED
WHEN LOGIC 1/0 REQUIRED BOARD B SLOT D
"A" SIDE LOGIC 1/0 PANEL B
-----------------------------------------------------------------------------------A
B TK TK
I I
00000000000000
LOGIC 110 PANEL A _l-;.J·····: -· . . . ~ :. L c,-:
-
2.3.3.4 Double Approach With Switch Electric Lock
Figure 2-11 below shows that a system with both the Lo9ic I/0
"A" and "R" PCB's can drive a location with two signal heads in
each direction (double approach location). It also illustrates that
the Logic I/0 •c• PCB is installed to accomodate electric lock
inputs ann release outputs to both sid~s at any location.
, [:,. A B ' .. ' .. I • • f:::F: INTERFACE CKTS. INTERFACE
CKTS.
AND CPU AND CPU ' CONTROL LOGIC CONTROL COGIC .. LOGIC 110 BOARD
A
SLOT C "A" SIDE "B" SIDE
LOGIC 1/0 LEFT NWLP PANEL A I
-
2.3.3.5 Intermediate Location in Cab and Wayside Signals System
With NWP Only
f'igure 2-12 below shows the PCB complement for the NWP input
for a location in a system where both cab signal and wayside
signals are used. The NWP is connected through the Logic I/0 Panel
A and the Logic I/0 PCB A (Cara Slot C) in keeping with the I/0
connection in this system.
6. A B I + I + I ... • f::f::
INTERFACE CKTS. INTERFACE CKTS. AND CPU AND CPU '
CONTROL LOGIC CONTROL LOGIC
• LOGIC 1/0
' BOARD A SLOT C
"A" SIDE "B" SIDE LOGIC 1/0
LEFT NWP PANEL A
-
2.3.3.6 Intermediate Location In cab and Wayside Signal system
With Electric switch Lock and/or Auxillary I/0
Figure 2-13 below shows the PCB complement for above type of
location. The NWP(s) are input and output via the Logic I/0 Panel
"A" and the Logic I/0 PCB "A" (Card Slot C). The AOTP input and the
WL are I/0 via Logic I/0 Panel c and I/0 PCB C (Card Slot E).
Auxillary Track Codes for both sides are also I/0 via I/0 Panel c
and I/0 PCB c where it required to access them locally, again in
keeping with the I/0 connection in a system with both cab
generation and wayside signals.
t, t,
I A B
' t I t I .. .. f::F:
INTERFACE CKTS. I INTERFACE CKTS. AND CPU AND CPU
CONTROL LOGIC j CONTROL LOGIC
• LOGIC 1/0 BOARD A
SLOT C "A• SIDE "a• SIDE
LOGIC !/0 LEFT NWLP PANEL A RIGHT NWLP INPUT
INPUT WHEN REQUIRED WHEN
LOGIC f/0 REQUIRED BOARD B
SLOT D
"A• SIDE LOGIC l/0
"a· SIDE PANEL 8
LOGIC 110 BOARD C
SLOT E
LEFT AOTR AND WL
-
3.1 INTRODUCTION
SECTION III SIGNAL SYSTEM OPERATION
This section describes the input and output and track signal
transmission format in the MICROCODE-III cab-only and cab with
wayside signals applications.
3.2 TRACK DATA BIT DESIGNATION
Eight track data bits are transmitted in both directions over
the rails. Each bit is equally vital and equally independent of the
other codes. This provides 256 possible track codes.
The eight track bits are assigned in the standard system are
shown below.
DATA BIT 1 2
SIGNAL ASPECT DATA H, D ETC.
3 4
AUXILIARY CODE 1
5
AUXILIARY CODE 2
AUXILIARY CODE 3
r BLOCK INDICATION r SPARE 6 7 8
6391, p. 3-1
-
3.3 SIGNALING BIT MAPPING LOGIC I/0 TO/FROM TRACK DATA BITS
3.3.1 Cab Generation Only
3.3.l.l Signaling Data
The top of Figure 3-1 on page 3-3 shows the correspondence
between hardware inputs and outputs and the specific track data
bits used to transmit them from location to location. This depicts
signal flow in one direction, but the signal designation is exactly
the same in the opposite direction. In this ,example, I/0 panel •s•
is used to input/output signal data from a relay interlocking
system. The inputs are always designated as shown.
~he eight possible inputs are multiplexed into the first three
track data bits as shown. The allowable combinations are shown at
the bottom of Figure 3-1. If inputs are energized other than in the
allowable patterns, the system considers them as illegal inputs and
no code is transmitted over the rails.
The first three track data bits are transmitted to the approach
location, decoded and the appropriate cab and communication signals
generated to transmit to Track "B".
Notice that the Block and Track occupancy are output at the
control point MICROCODE-III and used for the interlocking logic
whether it is a relay ,1r MICROLOK system.
6391, p. ·,-2
-
DATA COMMUNICATION FORMAT SIGNALING DATA - CAB ONLY
~ DATA BITS 1, 2, 3 . -' ' A B A B
' • ' . . • I , I 2 I 3 I 4 I s I 6 I 1 I s I i1 i2j3j4JsiGl1isi
'----v--" '----v--"
l . TO CPU FOR ENCODING
H CAB AND COMMUNICATION SIGNALS FH
. TO TRANSMIT TO TRACK "B" D
. v .
BH
BFH
BFD 1/0 PANEL B BD OR
MICRO LOK . DATA BYTE
H - 2 FH ..._ ....
D , '-,
TK ::
BLK ....-....
BH:: TRACK BFD :: DATA BD r BITS
LOGIC INPUT 1 2 3 -- 0 0 0
H 1 0 0 H-BFH 0 1 0
H·BD 1 1 0 H·BFD 0 0 1 H·BH 1 0 1 H·FH 0 1 1 H·D 1 1 1
Figure 3-1. Track Message Encoding - Cab-only System
6391, p. 3-3
-
3.3.1.2 Auxiliary Track Codes
Figure 3-2 below illustrates how the auxillary codes are input
from Logic I/0 PCB •c•, encoded into track data bits 4, 5, 6 and
transmitted over the rails. They are then received at an
intermediate location, decoded and output from Logic I/0 "B" PCB
and the "B" I/0 panel. Note that the auxillary track codes can be
input and output from any location by installing the Logic I/0 •c•
PCB and associated I/0 Panel •c•. Auxiliary track codes that are
associated with the "B" track are input and output from the Logic
I/0 panel cat the intermediate location shown below.
3.3.1.3 Programable Functions of Auxiliary Cod~s
As will be described in the configuration programming section,
the auxillary track codes can be individually input/output or
transmitted past any intermediate location as shown in Figure 3-3
on page 3-5. Each location can be programmed to have individual
auxillary bits interrupted by the NWP as illustrated on Figure 3-4
on page 3-6.
DATA COMMUNICATION FORMAT AUXILIARY DATA - CAB ONLY
~ DATA BITS 4, 5, 6 INTERMEDIATE B A B •• INTERLOCKING
" - AUX 1 AUX 1 AUX 1 - v v
AUX 2 AUX 2 - AUX 2 -v - AUX 3 AUX 3 AUX 3 -1/0 PANEL C
1/0 PANEL B 1/0 PANEL C - -- AUX 1 AUX 1 AUX 1 -- -- AUX 2 AUX 2
v - AUX 2 - - -- AUX 3 AUX 3 - v - AUX 3 AOTR v AOTR
AUXILIARY CODES ARE MULTIPLEXED USING DATA BITS 4, 5, 6.
Figure 3-2. Data Communicatiom Format - Auxiliary Data (~ll Cab
Signal Only System
6391, p. 3-4
-
' '
A B
DATA COMMUNICATION FORMAT AUXILIARY DATA - CAB ONLY
REPEATER
1/0 PANEL C t===.f>~ ~e===JI 1/0 PANEL B .. I LOGIC 1/0
===ajL)j PCB B LOGIC 1/0
PCB C SLOT E
-- ===;~ SLOT D ., I
AUXILIARY BITS ARE TRANSMITTED OVER TRACK BITS 4, 5, 6.
AUXILIARY BITS CAN BE TRANSMITTED BY A LOCATION BY
PROGRAMMING OF KEYPAD.
AN INTERMEDIATE CAN BE PROGRAMMED FROM THE KEYPAD TO
1/0 OR REPEAT INDIVIDUAL AUXILIARY BITS AS DECIDED.
Figure 3-3. Data communicatiom Format - Auxiliary Data (#2) cab
signal Only syst~m
6391, p. ,-5
A B
-
B
.
1/0 PANEL C
AUX 2 OUT
AUX 3 OUT
DATA COMMUNICATION FORMAT AUXILIARY DATA - CAB ONLY
. . •• I A' A B
•• . -AUX 1 v AUX 2
-NWP ,v AUX 3
I 1/0 PANEL B 1/0 PANEL C I
, AUX 1 v
~ AUX 2 -~AUX 3 -
--------------AUX 2 IN
·--------------AUX 3 IN
AN INTERMEDIATE CAN BE PROGRAMMED FROM THE KEYPAD
TO HAVE INDIVIDUAL AUXILIARY BITS INTERRUPTED BY THE NWP
KEYPAD PROGRAMMING WOULD ALLOW BREAKING AUXILIARY 2
AND 3 OR JUST EITHER ONE WITH THE NWP INPUT.
NOTE: WHEN THE NWP 15 PROGRAMMED TO BREAK AN
AUXILIARY BIT, IT BREAKS IT IN BOTH DIRECTIONS.
Figure 3-4. Data Communicatiom Format - Auxiliary Data (0) Cab
Signal only Syst.P.m
6391, p. 1-6
-
3.3.2 cab Generation With wayside Signals
1.1.2.1 Signaling Data
The top of Figure 3-5 on page 3-8 shows the correspondence
between hardware inputs and outputs and the specific track data
bits used to transmit them from location to location. This depicts
signal flow in one direction, but the 3ignal designation is exactly
the same in the opposite direction. In this example, I/0 panel "B"
is used to input/output signal data from a relay interlocking
system. The inputs are always designated as shown.
-:?he eight possible inputs are multiplexed into the first three
track data bits as shown. The allowable combinations are shown at
the bottom of Figure 3-S. If inputs are energized other than in the
allowable patterns, the system considers them as illegal inputs and
no code is transmitted over the rails.
The first three track data bits are transmitted to the approach
location, decoded and the appropriate logic outputs energized to
drive the signal heads. Bits 1, 2 and 3 are also used by the logic
to determine the appropriate cab and communication signals to
sen,.1 to Track "3".
Notice that the Block and Track occupancy are output at the
control point MICROCODE-III and used for the interlocking logic
whether it is a relay or MICROLOK system.
Also notice that left and right track occupancy is output on the
intermediate Logic I/0 "A" PCB (designated "left APH") where it can
bP. used for cross lighting in double track, hot box detector
starts, etc.
6391, p. 3-7
-
i
I I I
I i
I
DATA COMMUNICATION FORMAT SIGNALING DATA - CAB WITH WAYSIDE
SIGNALS
~. . A B
. j1 j2l3l4jsjGj1jsl ..___,___,
1
DATA BITS 1, 2, 3 . .
I . •
l1 !2l3j4jsjGl1ls! ..___,___,
. . A B
H ==t-:::i
FH ==t-:::i
D ==C:l
l.APH
-
3.3.2.2 Auxiliary Track Codes
Figure 3-6 below illustrates how the auxillary codes are input
from Logic I/0 PCB •c•, encoded into track data bits 4, 5, 6 and
transmitted over the rails. They are then received at an
intermediate location, decoded and output from Logic I/0 •c• PCB
and the •c• I/0 panel. Note that the auxillary track codes can be
input and output from any location by installing the Logic I/0 •c•
PCB and associated I/0 Panel •c•.
3.3.2.3 Programable Functions of Auxiliary codes
.~s will be described in the configuration programming section,
the auxillary track codes can be individually input/output or
transmitted past any intermediate location as shown in Figures 3-7
on page 3-10. Each location can be programmed to have individual
auxillary bits interrupted by the NWP as illustrated on Figure 3-8
on page 3-11.
DATA COMMUNICATION FORMAT AUXILIARY DATA - CAB WITH WAYSIDE
SIGNALS
~. DATA SITS 4, 5, 6 INTERMEDIATE
INTERLOCKING B A B
RIGHT - LEFT RIGHT AUX 1 AUX 1 ' --~ AUX 2 AUX 2 S.::: - --~ AUX
3 AUX 3 "'
1/0 PANEL C
AUX 1 AUX 1 - -1/0 PANEL C --- AUX 2 AUX 2 - --- -- AUX 3 AUX 3
--
AOTR -
AUXILIARY CODES ARE MULTIPLEXED USING DATA BITS 4, 5, 6.
Figure 3-6. Data Communicatiom Format - Auxiliary Data (#1) cab
With waysid~ Sigr.als
6391, p. l·-9
-, AUX 1 --, AUX 2
- AUX 3
AUX 1
AUX 2
AUX 3
AOTR
-
~
DATA COMMUNICATION FORMAT AUXILIARY DATA - CAB WITH WAYSIDE
SIGNALS
REPEATER . . '
A B
. . - -. -- -
1/0 PANEL C v - 1/0 PANEL C - ~ • -LOGIC 1/0 LOGIC 1/0 .
PCB C . PCB C SLOT E
. SLOT E ~
.
~
AUXILIARY BITS ARE TRANSMITTED OVER TRACK BITS 4, 5, 6.
AUXILIARY BITS CAN BE TRANSMITTED BY A LOCATION BY
PROGRAMMING OF KEYPAD.
AN INTERMEDIATE CAN BE PROGRAMMED FROM THE KEYPAD TO
1/0 OR REPEAT INDIVIDUAL AUXILIARY BITS AS DECIDED.
' A
Figure 3-7. Data Communication F·,rmat - Auxiliary Duta (~2) Cab
With Wayside Signals
6391, p. ,-10
B
-
. ,B
•
DATA COMMUNICATION FORMAT AUXILIARY DATA - CAB WITH WAYSIDE
SIGNALS
'
' A B
' AUX 1 . AUX 2
.
. • . A
' . .
1/0 PANEL C NWP 1/0 PANEL C AUX 3 1/0 PANEL C LOGIC 1/0
PCB C SLOT E
AUX 2 OUT
AUX 3 OUT
LOGIC 1/0 LOGIC 1/0
-> AUX 1 PCB C PCB C SLOT E SLOT E
·~ AUX 2 . AUX 3 .
--------------AUX 2 IN
--------------AUX 3 IN
AN INTERMEDIATE CAN BE PROGRAMMED FROM THE KEYPAD
TO HAVE INDIVIDUAL AUXILIARY BITS INTERRUPTED BY THE NWP
KEYPAD PROGRAMMING WOULD ALLOW BREAKING AUXILIARY 2
AND 3 OR JUST EITHER ONE WITH THE NWP INPUT.
NOTE: WHEN THE NWP IS PROGRAMMED TO BREAK AN
AUXILIARY BIT, IT BREAKS IT IN BOTH DIRECTIONS.
Figure 3-8. Data Communication Format - Auxiliary Data (#3) cab
With wayside Signals
6391, p. 3-11
-
1.4 DATA TRANSMISSION BETWEEN MICROCODE-III AND MICROLOK
Figure 3-9 below illustrates the data format for the information
bits transmitted between MICROCODE-III and MICROLOK. There are
three bytes in each direction. Byte 1 is the left side signaling
information to MICROCODE with the same bit designation as the input
from a Logic I/0 PCB. syte 2 is the eight side signaling bits. Byte
3 is the left and right side auxiliary bits.
BYTE 1 H
BYTE 2 H
BYTE 3 AUX 1
DATA COMMUNICATION FORMAT MICROLOK..._. MICROCODE
SERIAL INTERFACE MICROCODE MICROLOK
MICROLOK MICROCODE
LEFT {A) SIDE
2 3 4 5 6 7 8
FH D I SPARE I BH BFH BFD BD RIGHT {B) SIDE
2 3 4 5 6 7 8
FH D I SPARE I BH BFH BFD SD "A" SIDE "B" SIDE
2 3 4 5 6 7 8
AUX 2 AUX 3 SPARE AUX 1 AUX 2 AUX 3 SPARE
·----------------------------------------------------------------------------------MICROCODE
MICROLOK
LEFT {A) SIDE
2 3 4 5 6 7 8
BYTE 1 H FH D TK I BLK I SH BFD SD RIGHT (B) SIDE
2 3 4 5 6 7 8
BYTE 2 H FH D TK BLK BH BFD BD
"A" SIDE "B" SIDE
2 3 4 5 6 7 8
BYTE 3 AUX 1 AUX 2 AUX 3 SPARE AUX 1 AUX 2 AUX 3 SPARE
Figure 3-9. Data Format - MICROLOK and MICROCODE-III
6 391, p. 3-12
-
3.5 BLOCK INDICATION DATA BIT
The block indication signal (Track Bit 7) can be initiated at
any intermediate location. Part A (top) of Figure 3-10 shows the
block indications being initiated in a split block fashion to break
the block into two sections. This is done for occupancy indications
in a CTC syste~.
Part B (bottom) of Figure 3-10 illustrates the block indications
being initiated in an overlapping fashion to break the block into
three sections for occupancy indications in a CTC system.
BLOCK
-
1.6 TRACK COMMUNICAITON FORMAT
1.6.1 General Track Message Description
The actual signal transmitted to the track consists of several
signals superimposed. Each signal will be treated separately in the
following description.
3.6.2 Broken Rail/Vital Shunt Detection Signal
The signal that is used for broken rail detection and vital
shunt detection is shown in Figure 3-11. This signal is half-duplex
and is comprised of 8 cycles of 15 Hz from the "A" side track, and
12 cycles of 15 Hz from the "B" side track. The half-duplex
communication requires a means of synchronizing the broken rail
signal communication between the two units. This is accomplished by
designing the "A" track side as the Master side and the "B" Track
side as the Slave side. In this configuration, a Master side will
transmit without a received signal, but a Slave side will only
transmit after receiving a valid messag1=.
Figure 3-11 part B then depicts a situation where a shunt or
open is present. Thus, only the "A" side (Master) end of #2 unit
will transmit after the shunt leaves or the break is cleared. The B
side (Slave) end of #l unit will receive a signal from unit i2 A
side, and the communication between the two ,rni ts wi 11 be
synchronized as shown in Figure 3-11 part c.
This then requires that the two units communicating to each
other must always be an "A" unit and a "B" unit as shown in Figure
3-11 part A.
It should also be noted that the broken rail/vital shunt
detection signal i.s 'on" at all times; both with the normal data
communication signal and the cab signal when it is being generated
to the track.
6391, p. 3--14
-
BROKEN RAIL COMMUNICATION (HALF DUPLEX)
#1 #2
A B A B
BEFORE SYNCHRONIZATION
I 540 MS. I 540 MS. - 8- ___ _..._ ____ 1.27 SEC. -----t-- 8-
--~ 15 HZ 1 S HZ
-t AV
AFTER SYNCHRONIZATION
r408~s+ 906 +--811 MS. r- 906 r40MS+ 906 +--811MS-, Ml. 12-----+
Ml. ~ 8- MS. 12-15 HZ 1~ HZ 15 HZ 15 HZ ~
AV
--*- --- -Figure 3-11. Broken Rail Communicat i.on - Ha
If-Duplex
6391, p. 3-15
-
3.6.3 Data Communication Signal
The data communication is full-duplex (i.e., transmitted from
both ends simultaneously). Data is carried by a PSK (Phase Shift
Keying) to encode/decode information onto a carrier frequency. The
"B" si.-le (Slave) carrier is 81.4 Hz and the "A" side (Master)
carrier is 108.5 Hz, as shown in Figure 3-12 part A. Each 110 msec.
of the carrier represents a "bit" of data. A phase shift indicates
a "l" bit, and no phase shift indicates a "O" for
transmitted/received data bits true or false as indicated in Figure
3-12 part B.
A BCH check is used to accomplish security of the transmitted
and received signals. A complete message then consists of 28 bits,
each 110 msec. long or a total of 3. 08 seconds per message. The bi
ts are then used as follows:
First 2 Gap:
Next 4 Synchronization Bits i.e., detest beginning of
message
Next 1 Tumbledown accelerates tumbledown when an H is slotted
off at an end unit
Next 1
Next 1
Next 8
Next 11
Polarity 0/1 designates units track polarity for broken down
insulated joint protection.
Tumbledown used in conjunction with the tumbledown bit to
increase reliability of tumbledown command.
Data carries 8 system data bits as described in section
3.3.1.1.
BCH used to implement the BCH check of receiverl signals.
When no shunt is present, the data communi~ation is on at the
same time as the broken rail/vital shunt detection signal. The
rlata communication signal i.s al:so used to turn on the cab
generation amplifier. The system accomplishes .this by generating a
non-vital shunt if O. 5 seconds elapses without receiving any
communication signal carrier. The conununication signal is turned
off when the cab generation is turned on. This then provides the
means to turn the cab on within the 1 second of a shunt entering
the circuit, as required to prevent cab "flips• (loss of signal) on
the on-board equipment.
l\s described in section 3.6.2, the broken rail/vital shunt
detection is on all the time. After the cab is turned on by the
"quick shunt", it is then turnerl back. off by the vital shunt
signal derived from the low frequency signal (described in Section
3.6.2) when the shunt leaves the track circuit.
6391, p. 3-16
-
A B
81.4 HZ
0
COMMUNICATION FORMAT (FULL DUPLEX)
FSK WITH PHASE SHIFT = 1
0
110 MSEC. / BIT
28 BITS = 3.08 SEC.
0 0
Figure 3-12. Communication Format - Full-Duplex
6391, p. 3-17
A B
108.5 HZ
-
3.6.4 Track Polarity
Track "polarityn is achieved by programming the unit as a"+"
or"-" when the configuration data is entered from the keypad. ~
unit programmed as a •+• has both of its track circuits designated
as"+", anrl a unit programmed for"-" track polarity has both of its
track circuits designated as"-" A"+" unit will only communicate
with a•-• unit, therefore units must be alternately programmed as+
and - as shown in Figure 3-13 below.
TRACK POLARITY
A B A B A B A B A B A B
+ + +
"A" AND "B" SIDES OF A GIVEN UNIT ARE BOTH + OR -
AN "A" END MUST TALK TO A "B" END.
Figure 3-13. Track Polarity
6391, p. 3 18
-
3.7 LOCATION-DEPENDENT FIELD PROGRAMMABLE PARAMETERS
The following location-dependent parameters are Field programmed
using the KEYPAD as a control and the Liquid Crystal Display (LCD)
as display of the par3meters. The Keypad and Display can be used
for observing th programmed parameters along with other system data
as described in Section IV "Keypad •Jperation•. These programmable
features are the equivalent of the hard wiring in a relay system,
therefore the location circuit plans should include a table
,showing the programming for that location. Examples are provided
in the application section.
KEYPAD PROGRAMMABLE PARA~ETERS
DJUSTMENTS
Track Circuit: Track circuit length, programmed from keypad
Lamp/Relay Outputs: Programmed from keypad when installed.
Remove jumpe on I/0 Surge Suppression PCB (N451666-6101, -6102) for
relay outputs.
Cab current: Level adjusted by a potentiometer for each track
circuit on the Cab Amplifier.
KEYPAD SELECTABLE FUNCTIONS *Protected with access security
code.
1. Lamp/relay output.
2. Approach/steady signal lighting. Internal power off
detection.
3. Stick enable (both directions).
4. Auto upgrading (both directions).
H -3,, H H -~ FH H -7 D FH -7 FH FH -,> D
5. Block initiate/repeat (both directions).
6. Auxiliary codes I/0 or repeat each independently in both
directions.
7. NWP break auxiliary codes independently, both directions.
8. WL timer O to 16.6 mins. in l sec. increment.g.
9. Cati jumper used to enable the cab from the v bit input.
6391, p. 3-19/20
-
SECTION IV KEYPAD OPERATION
4,1 LCD SYMBOL INTERPRETATION
The LCD symbols are interpreted as follows:
• Dark circle = Answer is yes or function is on.
Q Open circle = Answer is no or function is off. )f. Means
function is undefined or not present in this unit.
An example is: 1 -AT I
12345678
This is a display of the eight data bits received from the "A"
track circuit. Recalling the track bit designation, the first three
bits:
.QQ = 100 H only.
The 4th bit:
QQQ. = TK = on.
indicating that an auxillary code 1 is being received from the
left track.
4.2 KEYPAD FUNCTIONS
The Keypad is used for:
1. configurating unit and selecting options at each location
2. selecting system data to be displayed
~. Data received from tracks decodes signal information
1 - AT I .QQQQQC:)Q
ONLY --------!22 CODE = H
B. Data transmitted to tracks c. 9ata to/from Logic I/0 D,
System status
a. Logic subsystem b. Track Subsystem
6391, p. 1-1
-
3. Recovering recorded faults and errors
A. Displays:
Fault# & # OF occurrances since last clearea.
NNN nn
Where NNN =Fault# and nn # of ocur rences
B. Displays:
Expanded fault text:
Example 1:
Example 2:
Example 3:
HARDWARE FAILURE
LOGIC "B" BOARD
EXTRA OR MISSING
LOGIC "A" BOARD
NOT CONFIGURED
HIT CLEAR TO IDL
corrective action is tabulated in section VII.
4.3 KEYPAD KEY FUNCTIONS
~igure 4-1 below shows the keypad layout.
Figure 4-1. Keypad Layout
6391, p. 4-2
-
The keypad functions are as follows:
Key Label
l 9
NEXT
CMD
ENTER
CLEAR
DEL
BLANK KEY
Function
Enter numeric data or select a commanti to execute. some
responses 1 = Yes, O = No.
Advances cursor to next screen. Only functional when Nor NEXT
appears (i.e. Nor NE CMD).
Invokes cer·tain command. Only functional when CMD appears (i.e.
CMD 99 takes cursor to exit).
Enter data. Answer prompt only functional when E appears (i.e. E
or NE CMD or ENTER).
Clears display or fault/error data when prompted.
Erases data on display. Moves cursor backward.
Returns system back to starting CMD.
4.4 KEYPAD/DISPLAY THEORY OF OPERATION
The Keypad can be used to access all of the syste~ functions as
depicted on the "control" flow diagram of Figure 4-2 on page 4-4.
There are two main modes, Operate and Idle, that can be considered
as chapters in a book. Within these two chapters several ~pagesn of
system functions can be accessed.
The control can be considered as a cursor pointing to the
current function of the box. If in the Operate Mode, the cursor can
be moved to the next page by pressing the •next• function key on
the keypad. If the operator desires to access that page of data,
the ENTER key is pressed on the keypad. For example, if the cursor
is pointing to:
1. View Data
and the ENTER key is pressed, the cursor would be moved to the
View Data page shown on Figure 4-2. The cursor could be moved to
each of the eight bit data •lisplay by pressing NEXT on the keypad.
This page is exited by setting the ,cursor on 99 EXIT VIEW DATA and
pressing ENTER on the keypad. The cursor is then moved back to the
Operate Mode.
:~ote that passwords are required as to enter the Configure
Mode. is on either of these functions,
to enter the shut down or Idle Mode, as well If the operator
presses ENTER when the cursor he will be prompted for a
password.
Passwords are comprised of up to eight bits and are entered at
the time of initially configuring the unit. The three passwords
need not be the same, thus different levels of security can be
maintained for the three functions.
6391, p. ·1-3
-
KEYPAD OPERATION - MAIN MENU
I r----------~---------------------
OPERATE MODE PAGE 7-13
11. VIEW DATA ENTER 1ol PAGES
: 4-5 & 7-22 • NEXT 1
2. VIEW CONFIGURATION ENTER I PAGE 7-16 ..
NEXT
ENTER I PAGE 7-19 3. VIEW EVENTS .. NEXT
ENTER I PAGE 7-20 4. VIEW FAULTS ..
NEXT
is TEST MODE ENTER
I> I PAGE 7-24 .. NEXTl
SHUT DOWN ENTER
6. PASSWORD PAGE 7-12
NEXT
~----------------------------------r------- __ [
______________________ _
IDLE MODE PAGE 4-7
L1_._R_u_N_c_o_N~F1~G_u_R_E __ ~_E_N_T_E_R_..I PASSWORD ~I PAGE
6-14 ~ NEXT
ENTER ~--+--1------1 2. RUN OPERA TE
NEXT
3. VIEW EVENTS
NEXT
14. VIEW FAULTS
NEXT I
ENTER PAGE 4-7 •I
I I
ENTER .. , PAGE 4-7 .I
....I
-,
L-----------------------------------~ ~igure 4-2. Keypc,11
Operation
6391, p. 4-4
-
Table 4-1 below lists the system status bi's displayed when the
View Data Mode is first entered. These bits indicate the status of
sub systems as well as indicate whether faults or errors have been
logged. This display can thus expedite location of failures in the
system.
The Test Mode can be used to steady light the signals for
troubleshooting purposes when the unit is normally configured for
approach lighting.
Table 4-1. Keypad Operation - System Status Bits
VIEW DATA ????????\ System Status & AEFLCABM 1. AT! A Track
Input 2. ALI A Logic Input 3. BL! B Logic Input 4. ALO A Logic
Output 5. BLO B Logic Output 6. ATO A Track Output 7. BT! B Track
Input 8. CL! c Logic Input 9. CLO c Logic Output 1 o. BTO B Track
Output 11. MAI MICROLOK A Input 12. MB! MICRO LOK B Input 13. MCI
MICRO LOK c Input 14. MAO MICRO LOK A output 15. MBO MICRO LOK B
Output 16. MCO MICRO LOK c output 1 7. ATS A Track Status ~ 18. BTS
B Track Status 19. CAB Off-Code Rate 20. .~LF A Light-Out
Information 21. BLF B Light-Out Information 23. DSP Display
Parameters (fixed &
by logic table)
99. Exit View Data return to Operate Mode
& See page 4-6
& See page 4-6
& See page 4-7
6391, p. 4-5
-
~ SYSTEM STATUS
flit ID
A
E
Description
With circle dark, voltage is present at the unit's AC input
terminals; clear, no voltage is present. This input is used for
approach lighting intermediate signals (see Figure 5-12, p.
5-13).
This circle dark shows that a system event has happenen. (The
events are cumulative until cleared by operator); clear, no
events.
F This circle dark shows that a system fault has occured.
(Faults are cumulative until cleared by the operator); clear, no
faults.
L This circle dark signifies the Logic I/0 is up and running;
clear, the Logic I/0 is down; x, no Logic I/0 for this system.
c With the circle dark, the cab system is up and running; clear,
the Cab is down; x cab is not required for this system (this must
then be a wayside unit only).
A This circle dark shows that the "A" 'frack for a wayside unit
only is up and running; clear, the •A• Track is down: x, the unit
is a "B" end only or a cab signal unit.
B This circle dark shows that the "B" Track for a w3yside unit
only is up and running; clear, the •s• Track is down; x, the unit
is an "A" end only or a Cab signal unit.
M This circle dark signifies communications with MICROLOK;
clear, the MICROLOK communications link is .lawn; x, MICROLOK is
not used with this system.
& A'l'S or BTS A and B track status are used to ind;,oate if
the track information is being transmitted and received. The 8-bit
display is used for this information. '!'he following shows the bit
information.
222222221 BRQXLCTJ
B Transmitting Broken Rail R Receiving Broken Rail Q Quick Shunt
x Transmitting Commun.i.cati,H1 L = Link Up {Receiving Good
rommunication Signal) c Cab Transmission on T Receiving Tumble Down
J Broken Down Joint
• = Bit is 1 = True = Set
6391, p •. ; -6
-
4.5 BASIC MODE SELECTION (FROM IDLE MODE)
The following procedure places the MICROCODE III system in the
initial* Idle Mode, and allows call-up of the four basic functional
modes (i.e. the unit is powered up with the configuration not
programmed):.
Operation
1. Move the power switch to the ON position.
2. Press the CLEAR key.
3. Press the NEXT key as required to view the four basic
func-tional modes under the Idle Mode.
4. Press the NEXT key.
5. Press the NEXT key.
Verification
1. LCD should show:
\NOT CONFIGURED I 1HIT CLEAR TO IDL
2. LCD should show:
U MICROCODE 111
WELCOME
The system is now in the Idle Mode, Working modes may now he
entered.
3. LCD should show, in sequencP.:
1 - RUN CONFIGURE
{IDL}
2 - RUN OPERATE
{IDL}
13 - VIEW ERRORS l{IDL}
I 14-VIEW FAULTS
{IDL}
Mode 1 (RUN CONFIGURE) is the system configuration mode.
Mode 2 ( RUN OPERATE) starts rouU ne system operation. Note: Can
only be entered after the configuration process has been
completed.
: Mode 3 (VIEW EVENTS) allows system ert
-
~ The display parameters are only used at intermediate locations
in all of the current application software packages. The 8-bit
display is used to indicate the status of the stick and signals
that are associated with setting the stick. The following shows the
bit designation:
222222221 1 2 3 4 5 6 7 8
1 L.STICK Left Stick
2 R.STICK Right Stick
• = Bit is 1 = True = Set
6391, p. ,!-7
-
I
I I
operation
6. To enter the desired mode, bring 6. up the appropriate
display with the NEXT key, and press the ENTER key.
The desired mode can also be accessed directly by pressing the
following sequence of keys:
CMD Numeric (1, 2, 3, or 4) ENTER
7. To exit a basic functional mode, press the following sequence
of keys:
CMD 99 ENTER
7.
Verification
LCD should show one of the four primary operating displays
(listed in step 3). However, the second line starts with the
abbreviation for the respective mode, rather than (IDL).
Refer to following manual sections for further LCD displays and
keypad operations:
Mode Mode No. Section --Configure 1 6.7.2 Operate 2 7. 5. 3 View
Errors 3 7.5.4.2 View Faults 4 7.5.4.2
LCD should show:
~CROCODE 111 ' :WELCOME
The system is now back in the Idle Mode.
6391, "· 4-9/10
-
5.1 TYPICAL APPLICATIONS
Sl:'CTION V APPLICATION DESIGN
This section shows typical applications of MICROCODE-I II for
the purpose of wiring the unit to signals and/or relay logic. For
special applications problems not covered by this section, consult
US&S Hardware Engineering.
5.2 INTERLOCKING (CONTROL POINT)
Interlocking (control point) application examples are as
follows:
F'igure Description
5-1 Typical SIP at MICROLOK Interlocking 5-2 5-2 Typical
Application at Relay Interlocking, Side "A" (Left) 5-3
Interface (Cab with Wayside or Wayside Only) 5-3 Application of
MICROCODE-III to Generate Cab Signal Inside 5-4
Interlocking in Conjunction with DC O.S. Circuit
5.3 INTERMEDIATE LOCATIONS
Intermediate application examples are as follows:
Figure
5-4 5-5
5-6
5-7
5-8
5-9
5-10
5-11
5-12
5-13
5-14
5-15
5-16
Description
Typical SIP Application Typical Searchlight Application,
Intermdiate Location (Cab with wayside or wayside Only) Typical
Searchlight Application, Left Side Approach Location (Cab with
Wayside or Wayside Only) Typical color Light Application,
Intermediate Location (Cab with Wayside or wayside Only) Typical
color Light Applica~ ion, :Hae "A• (Left) APH Interface (cab with
Wayside or Wayside Only) Typical color Light Applica~ion, Side •s•
(:light) APH Interface ( Cab with Wayside or Wayside •Jnly) Typical
Position Light Application, Intermediate Location (Cab with Wayside
or waysidP Oniy) Typical Position Light Application, Approach
Location (Cab with wayside or waysid~ Only) Typical Electric Lock
Application, Right Side Switch (Cab Signal Only) Typical Electric
Lock Application, Left Side Switch (Cab Signal Only) Typical
Electric Lock Applicatior, Left Side Switch (Cab with Wayside)
Typical Electric Lock Application, Right Side Switch (Cab with
Wayside) Searchlight Intermediate Un., ~s - ·.:ross seeding
Approaches (Cab with Wayside or waysidP Onlyi
639], p. S-1
5-5 5-6
5-7
5-8
5-9
5-10
5-11
5-12
5-13
5-14
5-15
5-16
5-1 7
-
..., .... "' " " Cl) -"' . .., '<
"' .... 0 "' >-"' :,,
"' "' w "' "' >-"' - .... 0 "' "' ..,. .... 0
.;, :, I
N "' ..,.
"' H () el t'
~ H :, ..,. Cl) '1 ~
0 0 x .... :,
"'
RXD
GND 21
DCD B
GND 9 MJCROLOK/MICROCODE·lil
CURRENT LOOP CABLE ------ii RTI
MICROCODE-Ill UNIT e 1
25-PIN CONN. PORT A OR
PORT B
~~~---ii ------24 TXD ~~-D---,o· ------12
,---
1
•Y-,, "y--, r-- . ________ !XO RXD 'J 16 OCD --------2 ..
---------RTS , I • s RX COM -------~~. ---------RX COM • 1·• 18
SIGGND --------3 .. . ---------
, .. : 1 SE_:J3_(_?M L-,,,,9___ RTS
r-, -.: 13-------~XD ... ---------T~~- -----5 ::4-+f--t-1 -11Ti:
14 ____ cTs -t+, 11 ____ SIG GND rt+: i---:~;:c9M Lt-t. 37--
CTI
u.· ---------DCD ,,,,,_ • 30 --------18 ' L ____ _
25·PIN '"D" PORT A
OR PORT B
- -....... ---c= CHASSIS
GROUND
SHIELD CONNECTED TO EARTH GND AT
ONLY ONE END
A(
MICROLOK 37-PIN "D"'
AT PERIPHERAL
PCB
A HEADS B HEADS COMM COMM
TXD -----10
GND -------12
R1S ------22 GND ------
DCD ------GND -------
11 RXD -------21 GND -------23
MICROLOK CURRENT LOOP
ADAPTER CONNECTOR J2
25-PIN "D"
MICROCODE-111/MICROLOK EJA CABLE (N451458·B 1 OX)
LT TRACK
TSS-101
CMF-101
RELAY (Pl I TRACK I COMM A {\ ---- ---- ---- ----·v· • • • •
---- ---- ---- ----
A HEADS B HEADS RELAY (Pl TRACIC A( COMM COMM COMM A
LT
I _;zj I
/_;zj I! I I -,--ist
® TWISTED.PAIR WIRES NOTE· IEE FIGURE 1-20 FOR MICROLOK TO
CURRENT LOOP ADAPTER CABLE
RT
TYPICAL APPLICATION AT MICROLOK INTERLOCKING
SEE FIGURE 6·1 FOR USSP-11. TSS-101 AND
RT CMF-101 INSTALLATION DETAILS.
TRACK
J, ~-11 TSS-101
CMF-101 I I CMF-101
I TRACK B f BATTERY ,4 I BATTERY •
---, 2; ,.,,
50 • . TRACK • BATTERY + BATTERY •
-
#16 - A I I
~ 8
..., .... "' " "
TYPICAL APPLICATION AT I I WT 0 R RELAY INTERLOCKING, #16
u T SIDE "A" (LEFT) INTERFACE
• • 2 ) p
" "' I N .
I I WH u CAB WITH WAYSIDE SIGNAL R T OR WAYSIDE SIGNAL ONLY #16
s
R I I - 6 -
H >-3 ::, '< ..,.'O " .... "
()
,.,, "' "'
.... ~ >
'O -'O n"' "'
.... r; n
"' "'
,: rT w
,... .......
"' CT O
.... ::,' ::, ~ {I)
'O "' rT '< Ul "'
u1 .... " 1..L .-~ w ro
:,, '<
I I WD R TPSR 2WASR 2EALOR 2EAHR #16 + -812 22 I + J t J t I
+
D
#16 .
24
A B 2EBHR #16 I
~2W-1
+ 25 N t > p
BO u . #16 -.......;,
T
/T ' 27 s
WT .)I I I 2W #16 + . 14
0 " H ::,
~~; '< " Ul .... .... 0
"' n ro "" .... ;:, :, :, "'
2E I ET WT H f·, t< ~ TRACK I I #16-.........;_ I I N12 16 -c
B A SEE FIGURE 6-1 FOR USSP-11 LOGIC "A"
TSS·101 USSP-11, TSS-101 AND
• • CMF-101 INSTALLATION .... -·~ . ...., iJ} ~· "'
DETAILS • • R CMF-101 CMF-101
ro
• ,,. • -t"
ro ,.,, rT
A( A HEADS B HEADS RE AV CPS TRACK • TRACK BAITERY BATTERY •
r\ COMM COMM CO .-IM A • ------ -----
• • • • • • • • . • v 2~ 1u~ ------------ 50 ' A HEAD~ B HEADS
RHAV CPS + TRACK + TRACK BATTERY • BAnERY •
AC COMM COMM COMM A B
-
Figure 5-3 shows the application of a MICROCODF: III unit to
generate cah signal inside an interlocking in conjunction with t'lc
O.S. track circuits for shunt and broken rail detection. The
MICROCODE III is uset'I only for cab generation; it will not
provide shunt detection quickly enough to be used in the
interlocking logic circuits. The application requires tuned
blocking units connected in series with the de track elements to
prevent the MICROCODE III signals from interfering with its
operation.
Hlocking unit N451036-1801 is a parallel tuned filter that
pr0vines high impedance at 100 Hz and minimal Rat de. Blocking
capacitors are also required in series with the MICROCODE III track
connections tu prevent the t'lc from interfering with its
operation. The value and type of the capacitor is 100,000 mFd, 50
Vdc aluminum electrolytic. For anditional information on o.s. track
circuit applications, refer to page 5-37.
" I_LI
-
0.5. DC TRACK CIRCUIT
- I I
I
,1 ,1 /1 ,1 /1 I l_j_ _j_ I I I_L
-- -
TUNED BLOCKING
UNIT
== N451036-1801 -'---J/ TSS-101 / f\ 1TSS-101 1 I I
I I I I CMF-101 CMF-101
_:..::._ I I I ---c_ ~' I MICROCODE MICROCODE Ill Ill
O.S. TO MICRO LOK
CAUTION!!!
COMBINED CAPACITOR AND PCB FAILURES CAN BE UNSAFE. PERFORM
PERIODIC TEST ON CAPACITOR OR USE TRANSFORMER (I.E. US&S
W-400)
Figure 5-3. Application of MICROCODE-'II tn Generat0 Ca,, Signal
rnsirle Interlocking in Conjunct::·~n wot;1 DC o .. .s. (j
r,;uit
639], p. . -4
-
-
"' .... "' "' " fl) "' I .. .
"' w >-3 "' '< .... 'O ....
" 'O I)) . .... "' -...·) I H "' "' :,,
'O ·a .... ,.,. (l
"' er AC ,.,. 0 :, .n. v
AC
LT
A HEADS B HEADS RELAY CPS COMM COMM COMM
• • • • ---
A HEADS B HEADS RELAY CPS COMM COMM COMM
RT
SEE FIGURE 6·1 FOR USSP-11. TSS-101 AND CMF-101 INSTALLATION
DETAILS .
LT TRACK
TSS-101 I I
I • CMF-101
TRACK A
• -··
+ TRACK . A
RT TRACK
TSS-101 I I
• T CMF-101
TRACK B
• + TRACK .
B
I I USSP-11
CMF-101
BATTERY
--·
~ • ,; \.,; so ..
BATTERY +
r TYPICAL SIP APPLICATION I
BATTERY •
• BATTERY •
-
SIG W
#9
..., A+ WHD (Y) .... ul c:: MECH NWHD (G)
"
-
SIG WA A SIG EA #9 '];{' #9 A ..., .... WAHO (YI EHD (YI u'.l A+
6 P 5 A+ c: ... MECH u MECH Cl) NWAHD (GI
8 i 7 NEAHO (GI u, A· A-I "' WAYP + + EGP . 18 21 ·
~>a
I I WAGP 23:t+J 0' 2 4 s (] ::r 14
I I I A H~AO~ B HtO~ I I t TR:CK t t TR;CIC t-< CO M CO M 0
WBRP (] N12 16 ll> M" ....
I I 0 TYPICAL SEARCHLIGHT SIGNAL APPLICATION I I ----::,
LEFT SIDE APPROACH LOCATION A HEADS B HEADS I I .. TRACK TRACK
COMM COMM 4 ' CAB WITH WAYSIDE SIGNAL OR WAYSIDE SIGNAL ONLY
-
"' ,.,. '° c: ,., (1)
u, I
-.! . _., (1'< "''1l tr,-,.
" .: "' ,-,.,... c1" ::r (1
0 ::.: f-' "'0 ' p < 5
u
0 \/4----( R # 9 4 I ; I 3 ~ R
LT RT l
_.;J I
J I R -------·--·· A
AC AH ADS B HEADS RELAY CPS
;\ CO M COMM COMM
• • • • • v A HEADS B HEADS RfLAY CPS AC COMM COMM COMM "
L-. -
I LT
TRACK
I TSS-101 I I
I . CMF-101
TRACK A
• TRACK A
I
TYPICAL COLOR LIGHT APPLICATION INTERMEDIATE LOCATION
CAB WITH WAYSIDE SIGNAL OR WAYSIDE SIGNAL ONLY
RT TRACK
I I USSP·11
SEE FIGURE 6-1 f USSP-11, TSS-101
TSS-101 CMF-10: INSTALL . . DETAILS. • • CMF-101 CMF-101
TRACK BATTERY BATTERY • 8
-:Jl.: " • II • 2l 1u< ... TRACK 50 ·•
8 BAITERY • BATIERY •
OR AND ATION
-
..,,
..... "' c: " u, I
co
->-3 n> .... ::S:'O - W'O
>
-
"' .... "' c " C1l "' I "" . _..,
no..:: 0, 'O O'~·
0 ,: 0, .... ,... rT ::,'()
0 :e: ..... 0, 0 '< " "' ..... t"' n,...,. C1l"'
"' :," w O rT "" " ..... >
=
-
"' ..... "' " " (1) u, I .....
0
-8 0'< lll 'Cl ,,.. ...
(l
,: lll .......... ..,. ::,""'
0 ::;: "' lll ..... '
-
A :r9 _ I :YI G +::~ ,9 8
O I 1 I . ,9 MKR ..., 2 u ....
T cC c: R ~ i I R .., #9 : '" u ........
I I MKR " ~ T I I . #9 :,' 'O p
0 I u ::,; ti) LT RT '" .... T I I
R '< " s I I - #9 ti) .... 3
"' ,..,o I w "':, Ft
-
.:I
...,
..... ca ,:;
TWISTED PAIR CABLE -r---· i- -- - -- ---- --- --- --- -- - .. --
- -~1
0 c + I I ~0 u T
[ 8 [':::,; I WL I : p u PADLOCK CONTACT : T r-------, ' s ' '
'
I ·--- ' ' ' ' "
-
..., ,... "' " " " U1 I
>-"' w .
->'l O'<
"'"' O" ,... " rn"' ,.. . ...,
"' ::, "' "' "'>-"' w .... " "' " >-"' 0""
~ '""l 1-· 1 ..
"' '< " • - t"' "' 0 I n .... " ....
:,,
"' "' >-"' ,... " "' ..,. ,... 0 ::, . C"'
" ,..., c,-rn ,... C,
"' rn ,: ,... ..,. " :,"
0 u T p
u T s
I N p
u T s
B
[ 8
I + NWP 13
NNWP
~-- TWISTED PAIR CABLE ---i-- --- --- -- -- ---- - ----- -
-----~ l
I • 1 1 + 1 , : 0 ~ JwLJ
PADLOCK CONTACT r--------, : ·- - ~;! ... ~·-~· -----: I I
•--.._,- I ' ]
15 &+-~~~~~~~~~~~ ....... ~ i [':::,; =-, B 1 2
17
19
+ AOTP
I I
i SW CC L-------..J
AOTR 812
el ~
NAOTP
I I
: N12 :.;-r-
' ' ' ' ' ' : N12 I ' ~----------------------------~
A
TYPICAL ELECTRIC LOCK APPLICATION LEFT SIDE SWITCH
CAB SIGNAL SYSTEM ONLY
B
~TA~T~ I TR
SEE FIGURE 6-1 FOR I I I I USSP-11. TSS-101 AND USSP·11 I BT
CMF-101 INSTALLATION + . DETAILS . TSS-101 TSS-101 .
AT . I + • . . .
K 0 • I I I CMF-101 CMF-101 CMF-101 AC A HEADS 8 HEADS RE .AV m
TRACK TRACK BAITERY BATIERY •
(\ COMM COMM co 'M A B ------ -..n:
• • • • • • ;- • v " 21 11F --- --- --- --- so . A HEADS 8 HEADS
RELAY m • TRACK • TRACK COMM COMM COMM A B BATIERY • BATitRY •
AC
-
"' ..... "' " " " U1 I .... ... .
-"' f,:~ O'>-'•
()
,: "' ......... rr ::,- '" "' .... w ::,; " .., "' () .... '
-
"' I-'• "' " " -3 Cl'< "''O O" I-'•
" ,: "' ........ ..,. ::r 1:,:1 ,_,
"' ::e:
-
..., ,... "' " " (1) "' I ..... "' .
- "' () (1) "'"' 0-"
" >: :r ,.. ...... rT ,...
"""' :r ::,: rT "' '
-
5.4 PIECE NUMBER REFERENCES FOR HARDWARE CONFIGURATIONS
Figure 5-17 (covers three pages) provides top piece number
references for the various configurations of the MICROCODE-III
N451667-2XXX series units. The ~igure begins on page 5-19.
6391, p. 5-18
-
. -~~ ... ~ ..... ~ .. ~ ... MICROCODE-Ill UNITS
REF DESCRIPTIO