Hypertherm V9 Series Phoenix Rev.11 - Manual (Page 243)

Phoenix 9.76.0 Installation and Setup Manual 806410 243
12 – Serial Ports
Control RS-422 DB-9 Pinout
RS-422 Connections to Host PC with 9-pin D-type Connector
RS-422 Connections to Host PC with 25-pin D-type Connector
Pin Signal Name Description
1 Shield Chassis ground
2 TxD- Transmit data - to external device
3 RxD- Receive data - from external device
4 TxD+ Transmit data + to external device
5 Common Ground
6 No connection
7 RxD+ Receive data + from external device
8 No connection
9 No connection
Host PC Control
Signal Name DB-9 Pin Signal Name DB-9 Pin
Shield 1 Shield Not connected
RxD- 3 TxD- 2
TxD- 2 RxD- 3
RxD+ 7 TxD+ 4
TxD+ 4 RxD+ 7
Common 5 Common 5
Host PC Control
Signal Name DB-25 Pin Signal Name DB-9 Pin
Shield 1 Shield Not connected
RxD- 3 TxD- 2
TxD- 2 RxD- 3
RxD+ 14 TxD+ 4
TxD+ 16 RxD+ 7
Common 7 Common 5