Instruction manual

ROC800-Series Instruction Manual

2-12 Installation and Use Revised Jul-14

2.5.2 Removing an Expansion Backplane

Note: Before you remove an EXP, you must power down the ROC827,

disconnect all wiring from all modules, and remove the entire

unit from the DIN rail. Once the entire ROC827 is free of the

DIN rail, you can detach an individual EXP.

To remove an EXP from an existing ROC827 base unit:

1. Remove the right-hand end cap from the EXP as described in

Section 2.3.1, Removing and Replacing End Caps.

2. Remove the wire channel covers on either side of the EXP you want

to detach, as described in Section 2.3.2, Removing and Installing

Wire Channel Covers.

3. Turn the ROC827 around so that the back of the unit faces you (as

shown in Figure 2-6).

Note: It may be useful to place the ROC827 face-down on a flat

surface with the EXP you want to detach hanging free of the

surface’s edge.

Locking clips and tabs

Figure 2-6. Plastic Snaps on the Back of the EXP