Interface is based on RS-422 specifications.
Pin Number |
Pin |
Pin Name (slave) |
---|---|---|
1 | Frame ground | Frame ground |
2 | Receive A | Transmit A |
3 | Transmit B | Receive B |
4 | Transmit common | Receive common |
5 | Spare or ground | Spare or ground |
6 | Receive common | Transmit common |
7 | Receive B | Transmit B |
8 | Transmit A | Receive A |
9 | Frame ground | Frame ground |
Pins 2 and 7 form a pair and must be twisted together on long runs.
Pins 3 and 8 form a pair and must be twisted together on long runs.