ISC PCI6000, User Manual

Page: 161 / 172

If the controlling signal of the transmitter should be DTR instead of RTS, move the 3-pin
jumper, B, to the opposite position (4 + 6).
If the receiver should echo locally the transmitter, then move the 3-pin jumper, C , to the
opposite position (9 + 11).
If an 120W termination between TxD/RxD and TxD/RxD is required, then short jumper G
as well (17 + 18). Please note, that jumper G is 90° rotated.
Dsub-9 female pin-out (RS485)
1CHS
Chassis ground
2 NC Not connected
3 TxD/RxD Positive transceive
4 -TxD/-RxD Negative transceive
5 NC No connect
6 NC No connect
7 TxD/RxD Positive transceive
8 -TxD/-RxD Negative transceive
9 GND Signal ground
Please note, that eventhough the tranceive signals are duplicated (pin 3 and 7, pin 4 and 8),
you would normally only want to use one of each, eg. pin 3 and pin 4.
31.3 Setup for RS422 - Galvanic Isolated
The RS422 interface is wired to the Dsub-9 female connector. RS422 have two configura-
tion possibilities. The basic configuration is illustrated with the following jumper settings.
If an 120W termination between RxD and RxD- is required, then short jumper G (17 + 18)
as well. Please note, that jumper G is 90° rotated.
PCI6000 User’s Manual Chapter 31 Serial Port Modules 149
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