Nortel Meridian 1 Option 11C Upgrade Manual page 90

Page 90 of 224 Upgrade an Option 11E with fiber-optic cable to Option 11C
553-3021-250 Standard 7.00
6 Disconnect the NTAK78 fiber-optic cables from the MFI unit in the
main cabinet (one for each expansion cabinet).
Note: Do not remove this cable. You need it for the new expansion
cabinet.
7 Disconnect the NTBK62 fiber power cable from the following
units:
— MFI unit
— cable to the battery backup unit (if there is one)
— the power supply unit (under the unit)
8 If the cabinet has battery backup, connect the cable from the
battery backup unit directly to the connector on the bottom of the
power supply unit.
9 Remove the MFI from the cabinet.
10 Loosen the screws holding the MFI mounting bracket and remove
the bracket (see Figure 36 on page 91).
11 Install a cable routing guide in the location left empty by the MFI
mounting bracket. Tighten the screws. See Figure 36 on page 91.
April 2000