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Appendix 2
SIGNALS PLACING ON RS232/RS422 IN/OUT OUTLET
№ connector pin RS232/RS422
IN/OUT on NGT-200 (connector pin
type DSUB 9 male)
1
2
3
4
5
6
7
8
9
1
2
3 4 5
6
7
8 9
Type of signal
sent to outlet
Not connected
RS232 RX
RS232 TX
Not connected
GND
RS485/422 TxA
RS485/422 TxB
RS485/422 RxB
RS485/422 RxA
77
NGT-200 USER MANUAL
While connecting to
external equipment
connect to
Don't connect
RX232 Tx
RX232 Rx
Don't connect
GND
RS485/422 RxA
RS485/422 RxB
RS485/422 TxB
RS485/422 TxA
NGT-200 UM.E 20210520-02
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