Nortel Meridian SL-1 Supplementary Manual page 36

2- 28 Upgrading LE, A, M, MS to Option 21
Shelf upgrades to Meridian 1 553-3001-253
14 Install the QPC940 ROM daughter board on the component side of the
QPC687 circuit pack.
15 Ensure that the correct QMM42 Data Cartridge is installed on the
connector located on the component side of the QPC742 Floppy Disk
Interface (FDI) circuit pack 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.
16 Insert the circuit packs and the NT8D68AA Floppy Disk Unit in their
assigned slots in the QSD81 CE shelf (Figure 2-11). The NT8D68AA
FDU may be installed in an alternate location or any available PE
slots, provided the NT8D77AC floppy disk interface cable will reach
from the front of the NT8D68AA FDU to the front of the QPC742
circuit card.
Note: If the Floppy Drive is to be located within two slot spaces of
the QPC355 Converter the shield must be installed between them
(Figure 2-11).
17 Connect a NT8D77AC floppy disk interface cable from the connector
on the faceplate of the QPC742 circuit pack to the connector on the
front of the NT8D68AA FDU.
• Set all ENB/DIS switches on the faceplates of circuit packs to
ENB.
• Set the switch on the QPC687 circuit pack to NORM.
• Set the AC INP circuit breaker on the -48 V rectifier in the
QCA37 cabinet to ON.
• Set the CAB INP circuit breaker on the QSD23 power control
shelf to ON.
18 Insert the floppy disks into disk drives. A system reload (SYSLOAD)
should occur. Wait for the SYSLOAD to be completed.
19 Reestablish normal service on the system as soon as it is determined
that trunk connections can be made to an attendant console or other