120230 iGS18 GPS Splitter en - en.gemsnav.comen.gemsnav.com/.../120230_iGS18_GPS_Splitter_en.pdf · Tel: +86-755-29644311 Fax: +86-755-29644383 Email: [email protected] Web: Document

GEMS Navigation Limited Address:Room301,HuaChuangDaBuilding,CuizhuRd,46District,Bao’an,Shenzhen,China. Tel: +86-755-29644311 Fax: +86-755-29644383 Email: [email protected]

Document Number 120230 Rev 001 2016-08-31 Page 1 / 12

iGS18 GPS/GNSS Splitter

Intelligent Port Control: Control through DC or blocking DC; Intelligent port monitoring: Voltage monitor port;

Connecting the PC via the serial port; Used in automatic multi‐port status test;

Gain : 0dB~10dB；

Response For GPS:L1,L2,L2C,L5;

Glonass:G1,G2;

Galileo:L1,E1,E2,E5(E5a,E5b),E6;

Beidou2:B1,B2,B3;

IRNSS:L1,L5;

OmniStar

High Isolations >28dB

www.gemsrf.cn

Tel: +86-755-29644311 Fax: +86-755-29644383 Email: [email protected] Web: www.gemsrf.cn Document Number 120230 Rev 001 2016-08-31 Page 2 / 12

Description

The iGS18 GPS Splitter is a one‐input, eight‐output GPS device. This product typically finds application where an input from an active GPS roof antenna is split evenly between four receiving GPS units. In this scenario, the iGS18 can be configured to pass DC from an RF output to the antenna input port in order to power an active GPS antenna on that port. The others outputs would feature a 200 Ohm DC load to simulate an antenna DC current draw for any receiver connected to those ports. Individual iGS18 work independently as a separate product.iGS18 can control the 8 output ports power state, can detect the output port voltage.

Specifications Electrical Specifications, Operating Temperature ‐40 to 85℃.

Parameter Conditions Min Typ Max Units

Freq. Range Ant – Any Port 1.1 1.7 GHz

In &Out Imped. In, all output ports 50 Ω

Gain 0dB

In- Output ports, ,Unused Ports ‐ 50Ω -1 0 1

dB Amplified(10dB) 9 10 11

Input SWR All Ports 50Ω 2.0:1 -

Output SWR All Ports 50Ω 2.0:1 -

Nois Figure- Amplified Ant‐ Any Port, Unused Ports‐50Ω 2.2 dB

Gain Flatness (Amplified)

|L1‐L2|,Ant‐ Any Port, Unused Ports‐50Ω 3 dB

Amp. Balance |J1‐J2|, Ant‐ Any Port, Unused Ports‐50Ω 0.5 dB

Phase Balance Phase(J1‐J2), Ant‐ Any Port, Unused

Ports‐50Ω 1.0 deg

Group Delay Flatness 1 ns

Isolation

Amplified

Adjacent Ports: In ‐ 50Ω 28

dB Opposite Ports: In – 50Ω 34

Gain:10dB Adjacent Ports: In ‐ 50Ω 28

Opposite Ports: In ‐ 50Ω 34

AC IN Wall Mount transformer 230 VAC

DC IN

DC Block, All ports with a 200Ω Load 14

VDC PASS DC, Amplified 3 16

PASS DC, Passive 16

Powered, to be specified

Device Current 16 mA

Current

Pass DC, No Powered configuration, DC input on J1

250 mA

Powered, to be specified mA

Max RF Input (Amplified)

Max RF input without damage 0 dBm


Performance Data


Operation instructions

1. Connect serial port

Pin definition: 1 +12V; 2 GND; 3 RXD; 4 +12V; 5 GND; 6 TXD; Note: RXD product iGS18 serial port connector TXD; product TXD connected to the serial port connector RXD. 2. Serial port parameters Open serial debug assistant software

iGS18

1 2 3 4 5 6


Press table setting parameters:

Set items Default parameter Baud Rate 9600 Check bit nothing Data bits 8 Stop bit 1

Pin definition


Check the display of the receiving time, the sixteen band display, according to the sixteen system to send. Serial number view: Right‐click on "My Computer", select "Manage" Double‐click "Device Manager" and double‐click can see the connection port serial number is COM4. NOTE: You must insert the serial connector can see the serial number.

Connect the power to iGS18 can start off through the control port and a read port voltage (such as the output port and do not have electricity, port external power supply voltage can be read port).


(3) Calculation of power off and read voltage instructions Instruction consists of 8 hexadecimal format.

DLE STX CMD Parameter DLE ETX BCCH BCCL STX: 0x02 frame start flag; DLE: 0x10 transcoding, for use in the frame start or frame end flag before, if DLE equal to the value data appears in the frame, the data retransmission protocol requires one to represent distinction, that is represented by two consecutive DLE data, a DLE represents the transcoding; CMD: Communication instruction data type, including data communication instruction (0xF1) and control commands (0xF2) of two types; Parameter: CMD communication instruction data content, data length; ETX: 0x03 frame terminator flag (not included in the back of the validation data); BCCL: binary BCC check code low 8; BCCH: binary BCC code high 8. Then DLE, STX and ETX three hexadecimal constant, which is the first 1,2,5,6 These four numbers are the same, you need to calculate the CMD, parameters, BCCH and BCCL four hexadecimal number. Example: Let the second output port powered iGS18 remaining output port is not energized. (1) CMD calculation

Then determine the output port status instruction type instruction, CMD is the third number is 0xF2 ("0x" indicates a hexadecimal number).

(2) Parameter calculation (fourth number) This is the CMD communication command data content, calculation method: 2‐port powered remaining ports are not powered by the binary representation of 11,111,101 from the back followed by representatives of eight ports (1 port is the penultimate one) "1" indicates that no power "0" is energized, to be converted to hexadecimal "FD". (You can use the computer comes with the calculator, open the calculator click "view" select "programmers"). For binary input 1111 1101, converted to hexadecimal, then get the "parameters" calculation results, followed by analogy, if we want to make 4 port energized other energized so obtained for binary number 1111 0111, converted to hexadecimal "F7", then push to make 4, 6, 7 energized the remaining energized by binary number 1001 0111 conversion into hexadecimal number is "97".

(3) BCCH、BCCL Calculation

BCCH calculation: The CMD, parameters, DLE, STX four hexadecimal numbers and give the hexadecimal number penultimate position, if less than or equal to 9 then use that number plus 30, if more than 9 then use that number plus 37 to give BCCH; BCCL calculation: The CMD, parameters, DLE, STX four hexadecimal numbers and give the hexadecimal number of the penultimate one, if less than or equal to 9 then use that number plus 30, if more than 9 then use that number plus 37 to give BCCL.


Example: above the 2 port on the power of the "parameters" for 0xFD, then 0xF2+0xFD+0x10+0x03=0x202 0x202 countdown second is less than 0 less than 9 plus 0x30 is equal to 0x30 to get BCCH; 0x202 countdown to the first 2 less than 9 so plus 0x30 is equal to 0x32 get BCCL; Finally, to give 2 outputs energize the entire rest of the control command is not energized 10 02 F2 FD 10 03 30 32. Example: Let 4, 6, 7 serial energized energized not get to rest "argument" is 0x97, then 0xF2+ 0x97 + 0x10 + 0x03 =0x19C 0x19C countdown second equal to 9 equal to 9 plus 0x30 equal to 0x39 to get BCCH; 0x19C countdown to the first C (for decimal to 12) is greater than 9 plus 0x37 equals 0x43 to get BCCL; Finally, to give 4, 6, 7 port energized not energized the rest of the entire instruction is 10 02 F2 97 10 03 39 43.

Voltage command query: Judging instruction for voltage inquiry command, so the CMD 0xF1.

Don't set port on‐off so "parameters" does not need to compute the write, and then calculating the BCCH and BCCL, because voltage inquiry command is a fixed instruction so BCCH and BCCL also is only a fixed number of BCCH:0x30; BCCL:0x34, can be calculated 0Xf1+0x10+0x03=0x104, BCCH=0+30=30; BCCL=4+30=34. Finally get the voltage for the entire instruction inquiry 10 02 F1 10 03 30 34.

Now Demo output port 2 is energized the remaining ports is not energized, then the detection port voltage: Connection serial line and connect the power supply, open serial port assistant set parameters and uncheck show reception time, hexadecimal display, press to send the hex and click open the serial port, enter the above calculation 2 output port through electrical command click send, can see the serial number according to will receive feedback data proves the design success, now input voltage inquiry command, serial data reception will feedback is the port voltage values to hexadecimal form said and need to convert to decimal. Example:

Numerical see the port 2 is 0x1395 converted to decimal 5013mv energized state, the remaining ports have 0x0009,0x0004,0x0000, respectively 9mv, 4mv, 0mv is not energized.


Example: 2 output port through the rest of the electricity.

Port through power calculation instruction schematic

DLE STX

F1 for query port voltage F2 for port power setup

Energization represents 1111 1101 2‐port powered, “0” is energized, “1” is not energized, convert hex to 0xFD. Binary number from the back follower by the corresponding port 1‐8 (The penultimate one corresponding to 1 port)

DLE ETX

BCCH: 0xF2+0xFD+0x10+0x03=0x202The last one is 2<9, 2+30=32; The countdown to the first if less than or equal to 9 plus 30, if more than 9 plus 37

BCCH：0xF2+0xFD+0x10+0x03=0x202The last second bits are 0<9，0+30=30; The reciprocal second if less than or equal to 9 plus 30, if more than 9 plus 37

10 02 F2 FD 10 03 30 32


Basic power off instruction:

Energized state Corresponding instruction Output is not electricity 10 02 F2 FF 10 03 30 34 1 port through the rest of the electricity 10 02 F2 FE 10 03 30 33 2 port through the rest of the electricity 10 02 F2 FD 10 03 30 32 3 port through the rest of the electricity 10 02 F2 FB 10 03 30 30 4 port through the rest of the electricity 10 02 F2 F7 10 03 46 43 5 port through the rest of the electricity 10 02 F2 EF 10 03 46 34 6 port through the rest of the electricity 10 02 F2 DF 10 03 45 34 7 port through the rest of the electricity 10 02 F2 BF 10 03 43 34 8 port through the rest of the electricity 10 02 F2 7F 10 03 38 34 All energized output 10 02 F2 00 10 03 30 35

Schematic diagram of serial connection:

IN

2 1 iGS18

4 3

6 5 8 7 1 2 3 4 5 6

+12V GND RX +12V GND TX

Power

+12V

Serial port

connector

GND

Serial port

connector

TX

Power

+12V

Power

‐12V

Serial port

connector

RX


Order Informations And Available Options

Please contact us for more configurations and application supports. Email: [email protected].

Part Number： Standard： 0Db gain, N Female In &Out, Pass DC IN&J1

iGS18

Gain Options: Blank (Standard)‐0dB ‐Axx xx=01‐31, Desired Gain Level ‐A Active, 10dB gain ‐P Passive

A

Connectors In Blank (Standard)‐N Female ‐NF N Female ‐NM N Male; ‐SF SMA Female ‐SM SMA Male; ‐TF TNC Female ‐TM TNC Male; ‐BF BNC Female ‐BM BNC Male

DC NM

Pass DC or Block DC Options: Blank (Standard)‐ Pass DC In&J1 BI‐Pass DC on J1 and Block DC In B‐Block DC Out and In

BO

Power Options: Blank (Standard)‐Without Power adapter ‐DC With 230/5V Power adapter


Mechanical

Frequency reference table:

Gllobal/Compass Navigation Satellite Systems(GNSS/CNSS)Frequency (MHz)

1164 1176

1188 1192 1207

1215

1219 1227

1239

1245 1252

1259

1266 1268 1278

1290

1535

1540 1545

1550

1558

1558 1561

1563 1575

1587

1592

1602 1609

1616 2491

GPS(USA) L1,L2,L2C,L5 Glonass(Russia) G1,G2

Galileo(Europian) E5+/-15L1,E1,E2,E5(E5a,E5b),E6 E5a+/-12 E5b+/-12Compass (Beidou 2,China) B3+/-10Beidou 1

(China,Tx(LHCP)/Rx(RHCP)IRNSS (India) L5+/-15 S+/-15OmniStar

L5+/-12 G1+/-7

O+/-14---->

E2 L1+/-17 E1

B1+/-2

L1+/-12

L1+/-12L6+/-5L2/L2C+/-12

B2+/-10

G2+/-7

E6+/-12 L6+/-5

L S

5 2 6/3 6 1

120230 iGS18 GPS Splitter en - en.gemsnav.comen.gemsnav.com/.../120230_iGS18_GPS_Splitter_en.pdf · Tel: +86-755-29644311 Fax: +86-755-29644383 Email: [email protected] Web: Document

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