D - interface cable pinouts, Interface cable pinouts – Rockwell Automation 2755-G6-D Scanner with RS-232 Option User Manual
Page 89

A–B
D
Appendix
D–1
Interface Cable Pinouts
The Catalog No. 2755-NCR1 Cable is typically used
to connect the scanner to IBM PC Compatible
computers. You may have to use an adapter if your
computer has a 9-pin port.
T
a
b
le D.1
RS232 DCE, 25-Pin, Female, D-Type Connector
Catalog No. 2755-NCR1
Pin
Signal Name
Function
2
RxD
Serial data receive input.
3
TxD
Serial data transmit output.
4
CTS
Clear-To-Send (or External Trigger)
Handshaking input line.
1
5
RTS
Request-To-Send
Handshaking output line.
7
Ground
Ground pin and reference for both output signals.
External trigger operation is controlled by applying an external signal to the
CTS input (with external triggering enabled). CTS protocol and External Trigger
Enabled are mutually exclusive parameters. See Chapter 5 for details on how
to enable the scanner for external trigger operation.
1