Document
codeProduct name OptiX Metro 1050
Target
readersMMetro 1050 Deployment, Maintenance
EngineerProduct version V100R001
Edited by Global Technical Service Dept.Document
version V1.0
Topic on OptiX Metro 1050 Product
Features
Prepared by Bao Lifeng Date January 8, 2004
Reviewed by Date
Reviewed by Date
Approved by Date
Topic on OptiX Metro 1050 Product FeaturesConfidentiality Level:
Internal Use Only
Huawei Technologies Co, Ltd
All Rights Reserved
Review Record
Date Revision Version Author Description
2004/01/08 V1.0 Bao Lifeng Completed the first draft.
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Contents
Chapter 1 OptiX Metro 1050 System Features...........................................................................5
Chapter 2 Metro 1050 Version Features..................................................................................7
Chapter 3 OptiX Metro 1050 Product Structure.......................................................................9
3.1 Equipment Structure....................................................................................................9
3.2 System and Interface Relation.....................................................................................9
3.3 Bus Structure..............................................................................................................12
Chapter 4 Introduction to OptiX Metro 1050 Boards............................................................14
4.2 PDH Interface Board................................................................................................15
4.3 Electrical Interface Commutator..................................................................................15
4.4 10M/100M Ethernet Electrical Interface Board.........................................................18
4.5 SDH Interface Board................................................................................................18
4.6 System Control & Communication Unit (FSCC).........................................................19
4.7 Cross Connection/Clock Integrated Unit (XCS).........................................................19
4.8 Synchronous Clock Interface Unit..............................................................................19
4.9 Order Wire Processing Board.....................................................................................19
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Keyword:
OptiX Metro 1050
Summary:
At present, OptiX Metro 1050 is in the R1 phase, and the protection mode is
the PP/SNCP. OptiX Metro 1050 supports the MSP networking from the R2
version. The matched deployment network management version is OptiX
iManager T2000 V100R006.
Abbreviation list:
None.
Reference list:
None.
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OptiX Metro 1050 Product Features
Forward
At present, OptiX Metro 1050 is in the R1 phase, and the protection mode is
the PP/SNCP. OptiX Metro 1050 supports the MSP networking from the R2
version. The matched deployment network management version is OptiX
iManager T2000 V100R006.
Chapter 1 OptiX Metro 1050 System Features
OptiX Metro 1050 is integrated with the SDH and Ethernet technologies, and
can effectively protect services. Currently, the equipment includes type I and
type II. The type I adopts rear leading-out mode, and the type II adopts front
leading-out mode.
Figure 1-1 OptiX Metro 1050 type I subrack (front view)
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Figure 1-2 OptiX Metro 1050 type I subrack (rear view)
Figure 1-3 OptiX Metro 1050 type II subrack structure
Table 1-1 OptiX Metro 1050 interface type and access capacity
Interface type Maximum access capacity of single equipment
SDH interface STM-1 and STM-4 optical interface 6-channel STM-1 optical interface, or 2-channel STM-4
optical interface.
PDH interface E1/T1 and E3/DS3 electrical signal
interface
96-channel E1/T1 signal access or 18-channel E3/DS3
service access.
Ethernet interface 10M/100M Ethernet electrical signal
interface
12-channel 10M/100M Ethernet service access.
Auxiliary interface Network management interface 1-channel Ethernet interface and 1-channel F&f interface.
External clock interface 2-channel external clock signal output, 2-channel external
clock signal input. The clock signal can be 2MHz or 2Mbit/s.
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Environment monitoring interface 4-channel Boolean interface (3 channels for input, and 1
channel for output).
Data communication interface 4-channel data communication interface (multiplexing with
the environment monitoring interface).
Order wire interface 1-channel PHONE interface.
Table 1-2 OptiX Metro 1050 protection function
Equipment-
level protection
Power module 1 + 1 protection.
Cross connection and clock processing unit 1 + 1 protection.
1 group E1/T1 1:N(N≤5) TPS protection
2 groups E3/DS3 1:N(N≤2)TPS protection
1 group E1/T1 and 1 group E3/DS3 1:N (N≤2) TPS mixing protection.
Note: E3/T3 protection group is in slots 4, 5 and 6. E1/T1 protection group is in slots 10, 11, and 12. Slots
6 and 12 are the protection slots for E3/T3 and E1/T1 respectively.
The main control unit data is backed up in the cross connection and clock processing board.
Network-level
protection
Support sub-net connection protection (SNCP/PP)
Support multiplex section protection (LMSP/MSP)
Table 1-3 OptiX Metro 1050 other features
Features Description
Two equipment structures are available,
applying for multiple environments. Two
equipment is delivered at the same time. It
is subject to the requirements of the
customer.
OptiX Metro 1050 type I structure is shown in Figure 1 and. Figure 2.
OptiX Metro 1050 type II structure is shown in Figure 3.
Low cost and high integration OptiX Metro 1050 is designed in the box type, featuring small size and low
cost.
Flexible mounting mode 1) Wall hung mounting.
2) Cabinet mounting, including:
ETSI 300mm depth cabinet.
ETSI 600mm depth cabinet.
Standard 19-inch cabinet.
Huawei 19-inch open cabinet.
Huawei C series cabinets.
DCC resources flexible configuration The DCC can be configured in D1-D3 bytes, or D4-D12 bytes.
ECC transparent transmission capability OptiX Metro 1050 provides 6-channel ECC processing capability to transfer the
network management information. D1-D3 bytes or D4-D12 bytes can be used
to transfer the network management information, to transparently transmit the
DCC bytes (that are not used or used by other manufacturers).
Powerful cross connection capability The equipment has 20×20 VC-4 cross connection capability.
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Features Description
Providing multi-channel clock source. The equipment has clock sources ranging from 1 channel to 23 channels,
including 1 internal clock source, up to 18 tributaries clock source, 2 line clock
sources, and 2 external clock source.
Power and environment parameter
monitoring
1) he equipment can monitor the power under-/over-voltage states.
2) The equipment can provide alarm input/output function. The alarm input
function can realize the remote monitoring of user environment. The alarm
output function can realize the centralized monitoring of each equipment alarm
through the connection with the alarm interface of the first cabinet of each row.
Synchronous Status Message (SSM)
management function
Support SSM management function.
Chapter 2 Metro 1050 Version Features
For Metro 1050, there are three R versions: V100R001, V100R002 and
V100R003. V100R001 has three B versions: V100R001B01, V100R001B02
and V100R003. The version relation is shown below.
V100R001B01 V100R001B02 V100R002 V100R003
V100R001B03
5.00.035.00.04
5.00.04
5.00.06C02
5.00.06C01
V100R001B01 V100R001B02 V100R002 V100R003
V100R001B03
Platform: 5.00.03Network Management:R004
5.00.04
5.00.04
5.00.06C02
5.00.06C01
Platform:
Platform:
Platform:
Platform:
Network Management: R006Network Management: R009
Network Management: R008
V100R001B01 V100R001B02 V100R002 V100R003
V100R001B03
5.00.035.00.04
5.00.04
5.00.06C02
5.00.06C01
V100R001B01 V100R001B02 V100R002 V100R003
V100R001B03
Platform: 5.00.03Network Management:R004
5.00.04
5.00.04
5.00.06C02
5.00.06C01
Platform:
Platform:
Platform:
Platform:
Network Management: R006Network Management: R009
Network Management: R008
Features of each version is described below:
Table 1-4 V100 R version and R version’s B version
R Version B Version Feature Description
R001 B01
STM-1/STM-4
access
Support 2-channel STM-1 optical interface access. Support 2-channel
STM-4 optical interface access. STM-1/4 line and cross connection
clock are integrated in the same board. STM-1 and STM-4 cannot be
accessed at the same time.
E1/T1 accessSupport up to 16 × 6 channels. In the case of TPS protection (1:5),
support up to 16 × 5 channels.
E3/DS3 access Support up to 3 × 6 channels. In the case of TPS protection (two
groups 1:2), support up to 3 × 4 channels.
Network protection PP protection and SNCP protection.
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Equipment
protection
Power backup (the power is -48/-60 VDC), cross connection clock
backup, main control board data backup, and tributary TPS
protection.
DCC transparent
transmission
The DCC can be configured with D1-D3 bytes or D4-D12 bytes. The
network management information can be transmitted in D1-D3 bytes
or D4-D12 bytes.
Other interface Order wire, external clock interface, Boolean interface, debug serial
port, network management interface.
B02
(compatible
with B01)
Ethernet access
ET1
FE electrical interface service access, layer 2 switching. Support
generation tree protocol, layer 2 multicast, VLAN identification, VLAN-
based service convergence, port-based flow control, and so on. The
system supports up to 12 channels, supports ML-PPP, and the
mapping granule is VC-12. The maximum bandwidth provided
by each FE port is 32 VC12. The maximum bandwidth provide
by two ports is 32 VC12.
Network protection Linear multiplex section protection (1+1, 1:1).
Independent line
board
1-channel/2-channel STM-1 optical interface board, adding STM-1
access capability.
Front leading-out
equipment form
Front leading-out area is in the No.6 board of Layer 2. The external
clock board and interface board can share the same position.
220V power board 220V AC power board, with the basic alarm performance.
B03
TL1 interface TL1 user interface is based on the management object.
TL1 specification Adaptation management object and TL1 interface SDH and Ethernet
software specifications.
TP4 NM protocol TP4 NM NE communication and NE interconnection protocol.
TP4 software
loading
Software loading based on TP4, PFCSocket protocols, and network
management.
OSI over DCCTP4 network management information is interconnected with the
DCC.
R002
(Compatible with
R001B02)
EMS
Up to 4 × 6 channels Ethernet FE electrical access, with VC3/VC12
granule. Support three encapsulation forms: GFP, HDLC and LAPS.
Support L2 Switch,VLAN;LCAS/CAR,MPLS.
MSP Two-fiber unidirectional
multiplex section protection
ring
STM-1/STM-4,1:1 protection. Maximum service capacity is 2×STM-4
Two-fiber bidirectional
multiplex section shared
ring
STM-4,1:1 protection. Maximum service capacity is 2×STM-4
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Optical fiber shared virtual path
protection
The optical fibers in the different protection modes are shared. The
multiplex section protection and the SNCP protection are in the same
optical fiber.
Better SDH function (software) Support E1/T1 frame format and CRC check.
R003 (Compatible
with R001 and
R002)
N×64K
Up to 4×6 channels N64 electrical interface access. Support
X.21/V.24/V.35/RS-449/EIA-530 interface protocol signal and 2-
channel Framed E1 format.
155M electrical interface
Up to 2×1 channels 155M electrical interface access. STM-1
electrical signal can be directly added to and dropped from the
Metro1050 NE.
STM-1 single fiber receive/transmit Up to 2×2 channels STM-1 single fiber bidirectional optical interface
access. Provide single fiber receive/transmit capability.
Better SDH function (software)
External clock resistance query.
OSI over DCC, realizing the interworking of the network management
information based on the standard protocol stack.
Support external clock interface to transmit the network management
information.
TL1 specifications: Adaptive to management object and SDH and
Ethernet software of TL1 interface.
Database backup scheme optimization.
Support SNMP NM V3 interface, support performance and alarm
processing board and interface board matching detection.
External clock resistance query.
Chapter 3 OptiX Metro 1050 Product Structure
3.1 Equipment Structure
OptiX Metro 1050 is designed in a box, integrated with box, fan board, power
filtering board, board insertion area and air filter. The structure complies with
19-inch 3U standard subrack specifications in IEC297.
Equipment feature parameter:
Dimensions: 436mm (W) x 365mm (D) x 130.6mm (H)
Power: -48V/-60V DC, range: -38.4 to -72V
Power consumption: Less than 90W (fully equipped)
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3.2 System and Interface Relation
Figures 3-1, 3-2 and 3-3 show the interfaces relation of OptiX Metro 1050.
Figure 1-4 OptiX Metro 1050 type I front panel slots allocation
XCS BSlot 21
Slot 26 Slot 25 Slot 24
Slot 32 Slot 31 Slot 30
Figure 1-5 OptiX Metro 1050 type I rear panel slots allocation
XCS A XCS B
Slot 13
Slot 1 Slot 2 Slot 3
Slot 4 Slot 5 Slot 6
Slot 7 Slot 8 Slot 9
Slot 10 Slot 11 Slot 12
Slot 25 Slot 26
Slot 31 Slot 21Slot 30
Slot 24
XCS A XCS B
Slot 13
Slot 1 Slot 2 Slot 3
Slot 4 Slot 5 Slot 6
Slot 7 Slot 8 Slot 9
Slot 10 Slot 11 Slot 12
XCS A XCS B
Slot 13
Slot 1 Slot 2 Slot 3
Slot 4 Slot 5 Slot 6
Slot 7 Slot 8 Slot 9
Slot 10 Slot 11 Slot 12
Slot 25 Slot 26
Slot 31 Slot 21/32Slot 30
Slot 24
XCS A XCS B
Slot 13
Slot 1 Slot 2 Slot 3
Slot 4 Slot 5 Slot 6
Slot 7 Slot 8 Slot 9
Slot 10 Slot 11 Slot 12
Slot 25 Slot 26
Slot 31 Slot 21Slot 30
Slot 24
XCS A XCS B
Slot 13
Slot 1 Slot 2 Slot 3
Slot 4 Slot 5 Slot 6
Slot 7 Slot 8 Slot 9
Slot 10 Slot 11 Slot 12
XCS A XCS B
Slot 13
Slot 1 Slot 2 Slot 3
Slot 4 Slot 5 Slot 6
Slot 7 Slot 8 Slot 9
Slot 10 Slot 11 Slot 12
Slot 25 Slot 26
Slot 31 Slot 21/32Slot 30
Slot 24
Figure 1-6 OptiX Metro 1050 type II front panel slots allocation
The front panel of type I equipment can be inserted with PDH electrical
interface processing board, SDH optical interface board, Ethernet interface
board, cross connection and clock board, main control board, power board,
order wire board and fan board. The correspondence between slots and
corresponding boards is shown as follows:
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Table 1-1 Correspondence between slots and corresponding boards in front panel of OptiX Metro 1050 type I
Slot Corresponding board
Slot 1, 2 PIU
Slot 3 FSCC
Slot 4, 5, 6, 10, 11, 12 PL1S, PL1D, PM1S, PM1D, PF1S, PF1D, PL3, ET1D
Slot 10, 11 SL1, SD1
Slot 7, 8 XCS4, XCS1, XCS
Slot 9 FEOW
Slot 13 FAN
The rear panel of type I equipment provides the board for leading-out cables
and switching board used together with the PDH electrical interface
processing board, cross connection and clock board. The board for leading-
out cables and switching board can be inserted with the PDH electrical
interface commutator, PDH electrical interface switching & bridging unit, and
external clock interface board.
Table 3-1 describes the correspondence between slots and boards of type I
equipment. Table 3-2 describes the correspondence between the Slot of the
board for leading-out cables and processing board slots.
Table 1-2 Correspondence between slots and corresponding boards in rear panel of OptiX Metro 1050 type I
Slot Corresponding board
Slot 21 STIA/STIB
Slot 24, 25, 26, 30, 31, 32 C12, C12S, C34S
Slot 26, 32 TSB3
Table 1-3 Correspondence between the Slot of the board for leading-out cables and processing board slots of OptiX
Metro 1050 type I
Slot of the board for leading-out cables Corresponding processing board slot
Slot 24 Slot 4
Slot 25 Slot 5
Slot 26 Slot 6
Slot 30 Slot 10
Slot 31 Slot 11
Slot 32 Slot 12
Slot 21 Slot 7. 8
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Table 3-3 describes the correspondence between slots and boards of type II equipment.
Table 3-4 describes the correspondence between the Slot of the board for leading-out
cabless and processing board slots.
Table 1-4 Correspondence between slots and corresponding boards in OptiX Metro 1050 type II
Slot Corresponding board
Slot 1.2 PIU
Slot 3 FSCC
Slot 4, 5, 6, 10, 11, 12 PL1S, PL1D, PM1S, PM1D, PF1S, PF1D, PL3, ET1D
Slot 10. 11 SL1, SD1
Slot 7. 8 XCS4, XCS1, XCS
Slot 9 FEOW
Slot 13 FAN
Slot 21 STIC/STID
Slot 24, 25, 26, 30, 31, 32 C12, C12S, C34S
Slot 26, 32 TSB3
Table 1-5 Correspondence between the Slot of the board for leading-out cabless and processing board slots of OptiX
Metro 1050 type II
Slot of the board for leading-out cables Corresponding processing board slot
Slot 24 Slot 4
Slot 25 Slot 5
Slot 26 Slot 6
Slot 30 Slot 10
Slot 31 Slot 11
Slot 32 Slot 12
Slot 21 Slot 7. 8
Note:
In the Type II equipment, the external clock interface board STIC/STID and PDH electrical
interface bridging board C12/C12S/C34S/TSB3 occupy the same Slot21 (or Slot 32). When
the slot is inserted with the STIC/STID board, the slot No. is 21. When the slot is inserted with
the PDH electrical interface commutator or switching board, the slot No. is 32.
When the type II equipment is configured with the TPS protection of E1/T1 electrical interface
board, Slot 32 can only be inserted with the C12S, and the other external clock should not be
connected.
When E3/DS3 electrical interface board is in the two groups TPS protection, Slot 32 can only
be inserted with the TSB3, and other external clock should not be connected.
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When the equipment is configured with the E1/T1 and E3/DS3 mixing protection, Slot 26 can
only be inserted with the TSB3, and Slot 32 can only be inserted with the C12S.
3.3 Bus Structure
OptiX Metro 1050 equipment provides up to 20×20VC4(1260 1260 VC-12)
space division cross connection capability. Slot 7 and Slot 8 (17 and 18
logical board position) respectively occupy four buses. Slot 4, Slot 5, Slot 10
and Slot 11 respectively occupy two buses. Slot 6 and Slot 12 uplink have
one bus, and downlink have two buses, to facilitate the XCS broadcast and
complete PP/SNCP protection function. The buses from the service slot to
the active/standby cross connection slot are symmetric. The service bus
allocation is shown below:
Active cross connection/clockStandby cross connection/clock
slot8slot7
slot1
slot2
SPIU
SPIU
XCS
slot9
slot10
slot11
slot42× 4X38M
2× 4X38M2× 4X38M
2× 4X38M
slot7
slot8
slot5
4× 4X38M
2× 4X38M
2× 4X38M
4× 4X38M
2× 4X38M
2× 4X38M
slot12
slot6
2× 4X38M
2× 4X38M
1× 4X38M
1× 4X38M
2× 4X38M
2× 4X38M
1× 4X38M
1× 4X38M
slot3FSCC
Optical sub-board 4× 4X38M
4× 4X38M4× 4X38M
4× 4X38M4× 4X38M
4× 4X38M
2× 4X38M2× 4X38M2× 4X38M2× 4X38M
2× 4X38M2× 4X38M2× 4X38M2× 4X38M
Optical sub-board
Active cross connection/clockStandby cross connection/clock
slot8slot7
slot1
slot2
SPIU
SPIU
XCS
slot9
slot10
slot11
slot42× 4X38M
2× 4X38M2× 4X38M
2× 4X38M
slot7
slot8
slot5
4× 4X38M
2× 4X38M
2× 4X38M
4× 4X38M
2× 4X38M
2× 4X38M
slot12
slot6
2× 4X38M
2× 4X38M
1× 4X38M
1× 4X38M
2× 4X38M
2× 4X38M
1× 4X38M
1× 4X38M
slot3FSCC
Optical sub-board 4× 4X38M
4× 4X38M4× 4X38M
4× 4X38M4× 4X38M
4× 4X38M
2× 4X38M2× 4X38M2× 4X38M2× 4X38M
2× 4X38M2× 4X38M2× 4X38M2× 4X38M
Optical sub-board
Figure 1-7 Service bus allocation
OptiX Metro 1050 provides up to 6-channel ECC processing capability. Slot
4/Slot 5, Slot 7/Slot 8, and Slot 10/Slot 11 are respectively allocated with one
ECC route. The overhead pairing relation is: Slot 4 and Slot 5, Slot 7 and
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Slot 8 (the logical slot corresponding to the line board is Slot 17 and Slot 18),
Slot 10 and Slot 11. When the FSCC is not in the position, the overhead of
the pairing slot can realize the connection. The overhead bus is allocated as
follows:
FSCC
slot10
slot11
slot7
slot8
slot9
8M HW
8M HW
8M HW
8M HW2M HW
2M HW
2M HW
2M HWFEOW
slot4
slot5
8M HW
8M HW
Figure 1-8 Overhead bus allocation
Chapter 4 Introduction to OptiX Metro 1050
Boards
Table 1-1 Board category
Unit name Function description
PDH interface unit PL1S 8 2048kbit/s electrical interface board
PL1D 16 2048kbit/s electrical interface board
PF1S 8 2048kbit/s electrical interface board (support the frame structure)
PF1D 16 2048kbit/s electrical interface board (support frame structure)
PM1S 8 2048kbit/s or 8 1544kbit/s electrical interface board
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Unit name Function description
PM1D 16 2048kbit/s or 16 1544kbit/s electrical interface board
PL3 3 34368kbit/s or 44736kbit/s electrical interface board
Ethernet interface unit ET1D 2-port 10/100M Ethernet electrical interface board
SDH interface unit
OSB1 STM-1 optical interface board
OSB4 STM-4 optical interface board
SL1 STM-1 optical interface board
SD1 2×STM-1 optical interface board
Cross connection and
timing unit
XCS Cross connection and timing board
XCS1 Cross connection and timing board integrated with the OSB1
XCS4 Cross connection and timing board integrated with the OSB4
System control unit FSCC Main control board
Order wire unit FEO
W
Order wire board
Power supply unit PIU Power board
Fan unit FAN Fan board
Electrical interface
commutator
C12 2048kbit/s or 1544kbit/s electrical interface commutator
Electrical interface
switching and bridging
unit
C12S 2048kbit/s or 1544kbit/s 75 ohm/120 ohm /100 ohm electrical interface switching &
bridging unit
C34S 34368kbit/s or 44736kbit/s electrical interface switching board
TSB3 34368kbit/s or 44736kbit/s electrical interface switching & bridging unit
Synchronous timing
interface unit
STIA Synchronous timing interface unit—75 ohm, applicable for OptiX Metro I
STIB Synchronous timing interface unit—120 ohm, applicable for OptiX Metro I
STIC Synchronous timing interface unit—75 ohm, applicable for OptiX Metro II
STID Synchronous timing interface unit—120 ohm, applicable for OptiX Metro II
4.1 PDH Interface Board
On the board panel, “A” in the bar code indicates the 75 ohm board in the
interface, and “B” in the bar code indicates the 120 ohm board in the
interface.
E1/E3 signal is in the HDB3 code. T1 signal is in B8ZS or AMI code. DS3
signal of the interface is in B3ZS code.
On the board front panel, there is no connector, and the electrical signal
must be accessed in conjunction with the C12/C34S or C34/C34S.
There is an indicator in the PDH interface board:
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If the indicator is On (green), the board is configured with the data and
is in the operation status.
If the indicator is Off, the board is not configured with services or is in
the protection status.
When the PL3 board is configured with the TPS, E3/DS3 signal input and
output must be completed in conjunction with the C34S and TSB3 boards.
4.2 Electrical Interface Commutator
The C12 completes E1/T1 electrical signal conversion function together with
PL1D, PL1S, PM1D, PM1S, PF1D, and PF1S. When the TPS protection is
configured, C12S must be used. When the TPS is not configured, C12S can
be used together with the C12.
C34S board is the 3-channel E3/DS3 signal commutator, and completes
E3/DS3 electrical signal conversion together with the PL3. When the
equipment is configured with the TPS protection, the C34S board can be
inserted in Slot 24, 25, 30 and 31 (When Slot 26 and Slot 32 are inserted
with the TSB3, E3/DS3 signal TPS function must be completed together with
the TSB3). When the equipment is not configured with the TPS protection,
C34S board can be used as the signal commutator, and inserted in Slots
24,25,26,30,31,32. Schematic diagrams of C12S, C34S and TSB3 are
shown below:
Cable
Cable
DB78
Connector
slot 4,5,6,10,11
slot 12
slot 4,5,6,10,11
slot 12
Switch control module
Cable
Cable
DB78
Connector
slot 4,5,6,10,11
slot 12
slot 4,5,6,10,11
slot 12
Switch control module
Figure 1-9 C12S board principle
Take 1-channel E1/T1 signal input and output as an example to introduce
C12S board working principle:
In the normal status, the switch is toggled to the working position of E1/T1
electrical interface board bus. When the switching event occurs, the switch is
toggled to the protection position of E1/T1 electrical interface board bus.
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Figure 1-10 C34S board principle
Take 1-channel E3/DS3 signal input and output as an example to introduce
C34S board working principle:
Receiving direction:
Normally, the E3/DS3 signal from the cable is input to the PL3 board of the
working slots (Slot 4, 5, 10 and 11) after the switch control module.
When the equipment detects the TPS switching event, the E3/DS3 signal
from the cable is switched to the protection bus in the switch control module,
and is sent to the TSB3 board of Slots 26 and 32.
Transmitting direction
Normally, the E3/DS3 signal output from the PL3 board of the working slots
(Slot 4, 5, 10, and 11) is output to the cable through the switch control
module.
When the equipment detects the TPS switching event, the switching occurs
in the switch of the switch control module. Now the power control module
receives the E3/DS3 signal sent from the TSB3 (from Slot 26, 32) from the
protection bus, and the signal is output to the cable.
Figure 1-11 TSB3 board principle
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Take 1-channel E3/DS3 signal as an example to introduce the principle of
the TSB3.
Receiving direction:
If the PL3 board in the Slot 5 or 11 is faulty, the E3/DS3 signal input from the
C34S board (in the Slot 25 or 31) is input to the PL3 board in Slot 6 or 12
through the switch control module.
If the PL3 board in the Slot 4 or 10 is faulty, the switching occurs to the
switch of the switch control module. The E3/DS3 signal input from the C34
board (in the Slot 24 or 30) is input to the PL3 board in Slot 6 or 12 through
the switch control module.
Transmitting direction:
If the PL3 board in the Slot 5 or 11 is faulty, the E3/DS3 signal output from
the protection slots (Slot 6 or 12) is sent to the C34S board in Slot 25 or 31
through the switch control module.
If the PL3 board in the Slot 4 or 10 is faulty, the switching occurs to the
switch of the switch control module. The E3/DS3 signal output from the
protection slots (Slot 6 or 12) is output to the C34S board in Slot 24 or 30
through the switch control module.
4.3 10M/100M Ethernet Electrical Interface Board
ET1D provides the access, transparent transmission and switching of 2-
channel 10M/100M Ethernet signal service. For the note of working principle
and deployment in detail, see the guide to the board deployment.
4.4 SDH Interface Board
The OSB1 is 155M optical interface board, and integrated in the XCS board
(in this case, the board name is XCS1). The OSB4 is 6222M optical interface
board, and integrated in the XCS board (in this case, the board name is
XCS4). The SL1 is 155M optical interface board, and the SD1 is 155M dual
optical interface board. SL1/SD1 can be inserted in Slot 10 and 11. Table 10
describes the standard and parameters of the corresponding optical
interface.
Table 1-1 OptiX Metro 1050 optical interface parameter
Parameter Description
SL1 SD1 OSB1
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Parameter Description
Connector SC
Fiber 1310nm, single mode optical fiber
Optical module code Ie-1 S-1.1 L-1.1 L-1.2
Transmission distance 0.5km 15km 50km 80km
Average transmitting optical
power
-19 to -14 dBm -8 to -15dBm 0 to -5dBm 0 to -5dBm
Receiving sensitivity -23 dBm -28 dBm -34 dBm -34 dBm
Overload point -14 dBm -8 dBm -10 dBm -10 dBm
Parameter Description
OSB4
Connector SC
Optical fiber 1310nm,single mode optical fiber
Optical module code Ie-4 S-4.1 L-4.1 L-4.2
Transmission distance - 25km 50km 80km
Average transmitting optical
power
-8 to -15dBm -8 to -15dBm +2 to -3dBm +2 to -3dBm
Receiving sensitivity -23 dBm -28 dBm -28 dBm -28 dBm
4.5 System Control & Communication Unit (FSCC)
The FSCC provides up to 6-channel DCC processing capability, and is
located in Slot 3. Metro 1050 NE ID can be set through command line.
During the deployment and commissioning, the DIP switch of the FSCC
should not be set, and the factory default setting is recommended. The NE
ID and IP can be set through the command lines.
4.6 Cross Connection/Clock Integrated Unit (XCS)
The XCS1 is integrated with the cross connection and clock unit of the
OSB1. The XCS4 is integrated with the cross connection and clock unit of
the OSB4. The XCS/XCS1/XCS4 is inserted in Slot 7 and Slot 8 (They are
shown as Slot 17 and Slot 18 in the network management system). The XCS
provides board temperature detection, main control service data backup,
and board 1+1 hot backup to complete the service scheduling function. The
XCS only supports space division cross connection, and does not support
time division cross connection.
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4.7 Synchronous Clock Interface Unit
STIA/STIB applies for type I equipment (A refers to 75 ohm interface and B
refers to 120 ohm interface). STIC/STID applies for type II equipment (C
refers to 75 ohm interface and D refers to 120 ohm interface). For A/C
interface, see the board silkscreen. B/D is DB9 interface. Definitions of pins
are as follows:
Table 1-2 Definition of DB9 pin in STIB/STID board
Pin Signal Description
3 GND Protection ground
5 EXT1R+ 1st channel external clock positive input
9 EXT1T+ 1st channel external clock positive output
4 EXT1R- 1st channel external clock negative input
8 EXT1T- 1st channel external clock negative output
7 EXT2T+ 2nd channel external clock positive input
2 EXT2R+ 2nd channel external clock positive output
6 EXT2T- 2nd channel external clock negative input
1 EXT2R- 2nd channel external clock negative output
4.8 Order Wire Processing Board
The order wire processing board is in Slot 9, and completes the RS-232 data
broadcast interface of 1-channel order wire phone (supporting addressing
call and meeting call) and 4-channel transparent transmission. The
maximum rate of data broadcast interface is 19.2kbit/s (it can also be used
as 3-channel Boolean to input -S1/S2/S3 and 1-channel Boolean to output –
S4). The order wire interface is RJ11. S1-S4 adopt RJ45 interface. The order
wire works in DTMF mode, and uses E1/E2 byte. S1/S2/S3/S4 interface
respectively uses X1/X2/X3/F2 bytes.
Note
Metro 1050 system does not provide the order wire outgoing subnet
connection function.
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