VCS VideoJet 1000 Manual page 26

Installation
Pin assignment
24
COM1
RS232
1 -
2 RxD
(receive data)
TxD
3
(transmit data)
-
4
5 GND (ground)
6 -
RTS
7
(ready to send)
CTS
8
(clear to send)
9 -
RS422/485
-
RxD+
(receive data plus) (receive data)
TxD-
(transmit data (transmit data)
minus)
-
GND (ground) GND (ground)
-
TxD+
(transmit data plus)
RxD-
(receive data
minus)
-
VideoJet 1000
COM2
RS232
-
RxD
TxD
-
-
-
-
-