Rockwell Automation 1734-CTM_VTM POINT I/O Common Terminal Module and Voltage Terminal Module - Manual (Page 6)

6 POINT I/O Common Terminal Module and Voltage Terminal Module
Publication 1734-IN024A-EN-E - March 2005
2. Make certain the DIN rail locking screw is in the horizontal
position.
You cannot insert the module if the locking mechanism is
unlocked.
3. Insert the module straight down into the mounting base and
press to secure.
The module locks into place.
Install the Removable Terminal Block (RTB)
You will find the RTB supplied with the wiring base assembly. To
remove, pull up on the RTB handle. You can now remove the
mounting base and replace as necessary without removing any of the
wiring. To reinsert the RTB, proceed as follows.
1. Insert the end opposite the handle into the base unit.
This end has a curved section that engages with the wiring
base.
2. Rotate the terminal block into the wiring base until it locks
itself in place.
3. If an I/O module is installed, snap the RTB handle into place
on the module.