Control rs-422 db-9 pinout – Hypertherm V9 Series Phoenix Rev.11 User Manual
Page 243
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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
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