Migration tasks
Issue 2.1 June 2006 501
6. Replace the rear covers and the ground plate. Dress the CAT5 Ethernet cable to exit from
either the left or the right side of the media gateway (Replacement of the upper and lower
rear covers on page 501).
Figure 18: Replacement of the upper and lower rear covers
Installing Expansion Interface circuit packs
You must replace any expansion interface circuit packs in the PPN.
● If the existing PPN has TN776 or TN570 Expansion Interface circuit packs, you must
replace them with a TN570B Expansion Interface vintage 7 or later circuit pack.
● If this system includes an Enterprise Survivable Server (ESS), replace the circuit packs
with a TN570D or later Expansion Interface circuit pack.
Figure notes:
1. Media gateway B
2. Upper rear cover
3. Lower rear cover
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