Rockwell Automation 2755-SNx Adaptascan Bar Code Readers - Manual (Page 259)

13–5 Communicating with a 2760-RB Module over an RS-232 Link
Publication 2755-6.8
Cabling
Cable 1 must be constructed to connect a configuration terminal to
the 2760-RB Module Configuration port.
Cable 2 must be constructed to connect the RS232/422 port of the
bar code reader wiring base to Port 1 on the 2760-RB module. Refer
to following cabling diagrams.
2760-RB
(config. port)
Dumb Terminal
(VT-1000)
GND 7 7 GND
Tx 2
Rx 3
3 Rx
2 Tx
25-pin D male 25-pin D female
Cable 1
2760-RB
Port 1
AdaptaScan RS-232
Terminal Strip
GND 7 GND
Tx 2
Rx 3
Rx
Tx
25-pin D male RS-232
Cable 2