Nortel Meridian SL-1 Supplementary Manual page 131

10-10 Upgrading from SL-1 XN (QCA97 cabinet) to Option 71
Shelf upgrades to Meridian 1 553-3001-253
24 Connect a NT8D74AF cable from the faceplate connector on the
QPC775 circuit pack on CPU 1 shelf to J12 on the QPC417 junctor
board in the QCA25 cabinet.
25 Tag and disconnect cables from faceplate connectors of all QPC441
three-port extender packs in the QCA97 cabinet.
26 Tag and disconnect network loop cables from faceplate connectors of
each Network circuit pack.
27 Tag and disconnect cables from faceplates of SDI packs.
28 Disconnect and remove remaining cables from faceplate connectors in
the QCA97 network shelves.
29 Remove all circuit packs from the network shelves in QCA97 cabinet.
Note: The 5/12 V CONV packs are required for the new network
shelves. The SDI packs are required if they are assigned in the
converted system. The remaining removed packs are no longer
required.
30 Remove the mounting screws securing the QSD54 and QSD55
Network shelves to the cabinet frame and remove the shelves.
31 Position a QSD39 Network shelf (left-hand mount) in the space
vacated by the QSD55 shelf.
32 Position a QSD40 Network shelf (right-hand mount) in the space
vacated by the QSD54 shelf.
33 Position and mount remaining QSD55 and QSD54 Network shelves (if
provided) at the rear of the cabinet (Figure 10-1).
34 From the front of each QSD39 shelf, plug in a QPC477-9 BTU in
connector located between slots 3 and 4, and a QPC477-10 BTU
between slots 2 and 3 (Figure 10-3).
35 From the front of each QSD40 shelf, plug in a QPC477-9 BTU in
connector located between slots 11 and 12, and a QPC477-10 BTU
between slots 12 and 13 (Figure 10-3).
36 Connect the power cable adapter to connector G of QSD39 shelf and
connector G of QSD40 shelf (Figure 10-3).