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ROC827 Instruction Manual
Issued Mar-06 Input/Output Modules 4-4
default configurations. Refer to the ROCLINK 800 Configuration Software
User Manual (Form A6121).
4.2.1 Installing an I/O Module
To install an I/O module in either the ROC827 or the EXP:
1. Remove the wire channel cover.
Note: Leaving the wire channel cover in place can prevent the module
from correctly connecting to the socket on the backplane.
2. Perform one of the following:
If there is a module currently in the slot, unscrew the captive
screws and remove that module (refer to “Removing an I/O
Module”).
If the slot is currently empty, remove the module cover.
3. Insert the new I/O module through the module slot on the front of the
ROC827 or EXP housing. Make sure the label on the front of the
module faces right side up (refer to Figure 4-3). Gently slide the
module in place until it contacts properly with the connectors on the
backplane.
Note: If the module stops and will not go any further, do not force the
module. Remove the module and see if the pins are bent. If the pins are
bent, gently straighten the pins and re-insert the module. The back of
the module must connect fully with the connectors on the backplane.