Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules - Manual (Page 239)

Rockwell Automation Publication 1756-UM058G-EN-P - November 2012 239
Appendix
G
1492 IFMs for Digital I/O Modules
Cable Overview As an alternative to buying RTBs and connecting the wires yourself, you can buy a
wiring system that connects to I/O modules through prewired and pretested
cables.
The combinations include the following:
• Interface modules (IFMs) mount on DIN rails to provide the output
terminal blocks for the I/O module. Use the IFMs with the prewired
cables that match the I/O module to the interface module.
• Prewired cables are individually color-coded conductors that connect to a
standard terminal block. The other end of the cable assembly is an RTB
that plugs into the front of the I/O module. All of the prewired cables use
0.326 mm
2
(22 AWG) wire.
IMPORTANT The ControlLogix system has been agency certified using only the ControlLogix
RTBs (1756-TBCH, 1756-TBNH, 1756-TBSH and 1756-TBS6H). Any application
that requires agency certification of the ControlLogix system using other wiring
termination methods may require application specific approval by the
certifying agency.
Prewired Cable IFM I/O Module