Hypertherm HTA Rev 6.00 Install Guide User Manual
Page 210
198
Installation & Setup Guide
RS-232C Connections to Host PC with 25-pin D-type connector
Host PC
Control
Signal Name
DB-25 Pin
Signal Name
DB-9 Pin
Shield 1
Shield
N/C
RxD 3
TxD
2
TxD 2
RxD
3
Common 7 Common
5
Control RS-422 DB-9 Pinout
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
RS-422C Connections to Host PC with 9-pin D-type connector
Host PC
Control
Signal Name
DB-9 Pin
Signal Name
DB-9 Pin
Shield 1 Shield
N/C
RxD- 3 TxD-
2
TxD- 2
RxD-
3
RxD+ 7 TxD+
4
TxD+ 4 RxD+
7
Common 5
Common
5
RS-422 Connections to Host PC with 25-pin D-type connector
Host PC
Control
Signal Name
DB-25 Pin
Signal Name
DB-9 Pin
Shield 1
Shield
N/C
RxD -
3
TxD -
2
TxD -
2
RxD -
3
RxD +
14
TxD +
4
TxD +
16
RxD +
7
Common 7 Common
5