Caution Always use the ejector levers to disengage or seat trunk cards, modem cards, VoIP cards, or dial shelf controller cards in the backplane. Failure to do so can cause erroneous system error messages indicating a card failure. However, do not use the ejector levers to lift or support the weight of the cards. Step 5 Tighten the panel fasteners using a No. 2 Phillips screwdriver. This secures the backplane connection and ensures proper EMI shielding.
Caution Always tighten the panel fasteners.
These fasteners prevent accidental removal and provide proper grounding for the system. Step 6 Repeat Step 2 through Step 5 for any other dial shelf cards that you want to install. Caution To prevent the overheating of internal components, always install blank filler cards in empty slots to maintain the proper flow of cooling air across the cards. This completes the dial shelf card replacement procedure. Inc. All rights reserved.