Rockwell Automation 2755 AdaptaScan Bar Code Readers - Manual (Page 53)

Installing the Wiring Base and Power Supply 3–18
The RS-232 port provides point-to-point communications at
distances up to 50 feet (15.2 meters). Use the RS-232 port for a
direct connection to a controller, personal computer, or other device
that supports one of the protocols (terminal, Allen-Bradley DF1,
Allen-Bradley DH485).
Reader
RS-232 connections are made to the RS-232 port terminal block.
Transmit (Tx)
Ground (GND)
Receive (Rx)
Clear to Send (CTS)
Ready to Send (RTS)
Shield (SHD)
RS-232 Connections