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ROC827 Instruction Manual
Issued Mar-06 Installation and Use 2-12
2.5.2 Removing an Expandable 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.
Figure 2-6. Plastic Snaps on the Back of the EXP
Locking clips and
tabs