Serial Port Adapter
Cables connected to the previous SCC green com port adapter board or black DSUB-9 serial port adapter
must be moved to the grey connection block on the green com adapter board as follows:
COM3 and COM4 (in RS-485 mode)
Signal
Position on old adapter
Position on new adapter
DATA-
1
4
DATA+
2
5
GND
3
3
I.e. the wires must be connected to a different position compared to the old adapter
COM3 and COM4 (in RS-422 mode)
Signal
Position on old adapter
Position on new adapter
Tx-
1
1
Tx+
2
2
GND
3
3
Rx-
4
4
Rx+
5
5
I.e. use the same position on the new adapter as on the old adapter
COM5 and COM6 (RS-232)
Signal
Position on old adapter
Position on new adapter
CTS
1
1
TxD
2
2
GND
3
3
RxD
4
4
RTS
5
5
I.e. use the same position on the new adapter as on the old adapter
