Nortel Meridian 1 Option 11C Upgrade Manual page 102

Page 102 of 224
553-3021-250 Standard 7.00
Upgrade an Option 11E with fiber-optic cable to Option 11C
The terminal displays a new installation information summary.
Make any necessary changes to the information. Enter the
keycodes.
i Complete the software installation when prompted.
22 Wait for the software installation to finish.
If for any reason you must terminate the upgrade and revert back
to the original Option 11E, terminate now (see Procedure 8 on
page 111). The remaining steps of this procedure require major
equipment changes, making it difficult to revert back.
23 If you installed it, remove the Database Upgrade Tool from the
PCMCIA socket on the faceplate of the SSC card.
24 Load overlay program 43 (LD 43) and perform a data dump.
25 Disconnect the power connection from under the NTAK04,
NTAK05, NTDK72, or NTDK78 power supply unit in each
expansion cabinet.
26 Tag and disconnect all cables from connectors J11 through J20
in the first expansion cabinet. If there is a second expansion
cabinet, do the same for that cabinet.
Tag the cables J11, J12, J13, . . ., J20 for the first expansion cabinet
and J21, J22, . . ., J30 for the second cabinet.
27 Disconnect the NTBK78 (A0618443 or A0632902) fiber-optic cable
from EFI units in the expansion cabinets.
28 Remove the expansion cabinets from the wall (or pedestal).
Put the cabinets to the side.
29 Install the new NTAK11 cabinets on the wall (or pedestal).
If you plan to install the cabinet on a pedestal, first remove the door
hinge opening tabs on each side of the cabinet. Use a pair of pliers, as
shown in Figure 42 on page 103.
April 2000
CAUTION