Rockwell Automation 1756-XXXX ControlLogix Digital I/O Modules - Manual (Page 114)

114 Rockwell Automation Publication 1756-UM058G-EN-P - November 2012
Chapter 6 Install ControlLogix I/O Modules
3. To key the RTB in positions that correspond to unkeyed module positions,
insert the straight, wedge-shaped tab on the RTB with the rounded edge
first.
4. Push the tab onto the RTB until it stops.
5. Repeat step 1 … step 4 by using additional U-shaped and straight tabs until
the module and RTB lock into each other properly.
Connect the Wires
You can use an RTB or a Bulletin 1492 prewired Interface Module (IFM)
(1)
to
connect wires to your module. If you are using an RTB, follow the directions
below to connect wires to the RTB. IFMs are prewired prior to shipping.
1 2
0
3
4 5
6 7
Module side of RTB
20851-M
(1) 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
WARNING: If you connect or disconnect wiring while the field-side power is on,
an electrical arc can occur. This could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is nonhazardous before
proceeding.
ATTENTION: If multiple power sources are used, do not exceed the specified
isolation voltage.