Nortel Meridian SL-1 Supplementary Manual page 68

Upgrading from SL-1 N (QCA23 cabinet) to Option 61 5-5
• the four power and ground leads from cabinet power wiring
harness to the -48V 0, -48V 1, -48V GND and L GND lugs on the
end of the new CPU/MEM shelf backplane (Figure 5-1).
• cables A, B, C and D to the connectors on the end of the shelf
(Figure 5-2).
7 Insert the following circuit packs in the new CPU/MEM shelf
(Figure 5-1):
• QPC477-22 BTU between slots 2 and 3.
• QPC477-22 BTU slots 14 and 15.
• 5/12 V CONV circuit pack in slot 1.
Note: If power converter card will not seat properly in shelf, remove
card and check backplane connector. If necessary, move the key in
the connector to the appropriate location for the converter card being
used.
• QPC496 EXT (Full Group) or QPC215SBE (Half Group) circuit
pack in slot 2.
• QPC742 FDI circuit pack in slot 3. Ensure that the new data
cartridge is in place and that switches 1 and 5 are set to ON.
Note: The software version and ID number indicated on the data
cartridge must match the software version and ID number indicated on
the floppy disks.
• QPC139 SDI circuit pack (optional) or a blank faceplate in slot 4.
• QPC579 FN circuit pack equipped with QPC939 ROM Daughter
board in slot 5.
• QPC580 IF circuit pack in slot 6.
• QPC581 CMA circuit pack in slot 7.
• QPC583 MEM circuit pack in slot 8.
• QPC583 MEM circuit pack in slot 9.
Shelf upgrades to Meridian 1 553-3001-253