Figure 4: Module cover locking latches
Installing the MISP
Once covers have been removed and card slot locations selected for ISDN BRI cards, install
the MISP cards.
1. Hold the MISP by its card-locking devices. Squeeze the tabs to unlatch the card-
locking devices and lift the tabs out and away from the card.
2. Insert the MISP into the selected card slot of the module so it engages the card
guides in the module.
3. Slide the MISP into the module until it engages the backplane connector.
4. Push the MISP firmly into the connector using the locking devices as levers by
pushing them toward the card's front panel.
5. Push the tabs firmly against the front panel of the card so they latch to the front lip
in the module and to the post on the card.
6. Observe the red LED on the MISP faceplate.
• If the red LED lights and stays lit continuously without flashing three times, the
card is defective. Remove the MISP, choose a new MISP, and repeat the
installation procedure.
• If the red LED lights, flashes three times, and turns off, the MISP is operating
correctly and is configured and enabled. Go to step 7.
• If it lights, flashes three times, and stays lit continuously, the MISP is operating
correctly but is not configured and enabled. Go to step 7.
7. Repeat steps 1 through 6 for each MISP requiring installation.
Removing the MISP
Perform the following steps to remove the MISP.
MISPs
ISDN Basic Rate Interface Installation and Commissioning March 2011 21
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