Rs-485 Half-Duplex To Third-Party Device (Slave) - GE Mark VIeS System Manual

9.3.6.4 RS-485 Half-duplex to Third-party Device (Slave)

• A (TX/RX+) to third-party device (Slave) TX/RX+
• B (TX/RX-) to third-party device (Slave) TX/RX-
• C – Jumper from A
• D – Jumper from B
Note Put A/B termination In, but leave C/D termination Out on the terminal board.
Protocol RS-485 Slave Device Side TX/RX+
SSCA SIDE Media converter pins
CHANNEL 1 RS-485
CHANNEL 2 RS-485
CHANNEL 3 RS-485
CHANNEL 4 RS-485
CHANNEL 5 RS-485
CHANNEL 6 RS-485
Channel A (TX/RX+)
CHANNEL 1 28
CHANNEL 2 27
CHANNEL 3 15
CHANNEL 4 16
CHANNEL 5 4
CHANNEL 6 3
PSCA Modbus Master (Serial Communication) Module
TX/RX-
DATA + DATA -
28 30
27 29
15 17
16 18
4 6
3 5
B (TX/RX-) C (Jumpered
with A)
30 32
29 31
17 19
18 20
6 8
5 7
Public Information
N/A N/A
JUMPER JUMPER
28-32 30-34
27-31 29-33
15-19 17-21
16-20 18-22
4-8 6-10
3-7 5-9
D (Jumpered Jumper (JP#A) Jumper (JP#B)
with B)
34 JP1A - IN
33 JP2A - IN
21 JP3A - IN
22 JP4A - IN
10 JP5A - IN
9 JP6A - IN
GEH-6855_Vol_II System Guide 299
SCOM RET
SGND
26 36
25 35
13 23
14 24
2 12
1 11
JP1B – OUT
JP2B – OUT
JP3B – OUT
JP4B – OUT
JP5B – OUT
JP6B – OUT