Rockwell Automation 2755-SNx Adaptascan Bar Code Readers - Manual (Page 109)

7–3 Communicating with an SLC on a DH-485 Network
Publication 2755-6.8
The following illustration shows how to connect a 2755-PW46 or
-PW47 power supply to a single bar code reader. The power supply
connection applies to both readers.
Use a shielded cable (Belden 9316 recommended) to make the
connections. Connect the shield to the ground screw on the reader’s
wiring base.
V-
24V+
Ground Screw
on Wiring Base
Reader
2755-PW46
Power Supply
The wiring base of the AdaptaScan Reader has an RS-485/RS-422
terminal block for point-to-point or network connections.
This section shows three connection options:
•
Connecting readers to SLC 5/03
•
Connecting readers to SLC 5/04 using two 1747-AIC Modules
•
Connecting readers to SLC 5/04 using one 1747-AIC Module
Note: You can use the 1761-NET-AIC Advanced Interface
Converter in place of the 1747-AIC Module.
Important: The DH485 network cable requires proper shielding,
grounding and termination. Refer to Data
Highway/Data Highway Plus/Data Highway DH485
Cable Installation Manual (Publication No.
1770-6.2.2).
Connecting a Power
Supply to the Reader
Connecting to the DH-485
Network