
Async EIA-422 DB-9 Connector Pinout
DB 9 EIA422 Pinouts
DB-9 Pinout Asynchronous EIA-422
The wiring diagram for an EIA-422 DB-9 connector is shown in Table 1.
Table 1: EIA-422 DB-9 connector
DB-
9
Direction Signal
2 RTS+
3
RTS-
4
CTS+
5
CTS-
6
RxD+
7
RxD-
8
TxD+
9
TxD-
Shell
GND
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