Figure 64 Releasing the I/O module
2. Gently pull the I/O module from the slot.
Figure 65 Removing the I/O module
Install a new I/O module
Procedure
1. Align the module with the empty slot and carefully push the module into the
slot.
Figure 66
Installing an I/O module
2. When the I/O module appears seated, push and release the small button on the
handle.
l
If the button remains in, the module is fully seated.
l
If the button springs back, gently push the module further into the chassis,
then push it again.
l
If the button still does not rest flush with its handle, remove the module and
repeat steps 1 and 2.
Service Procedures
74 Unity 480/F, Unity 680/F, Unity 880/F Installation and Service Guide
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