NEC Electra Elite 192, Hardware Manual

Page: 283 / 369

System Hardware Manual 7 - 1
Installing Optional
Equipment
Chapter 7
S
ECTION
1
G
ENERAL
I
NFORMATION
Optional equipment enhances the Electra Elite 192 system. This
equipment can be purchased separately from the system and added as
the customer business grows. Except as noted, these adapters can be
installed on Electra Elite Multiline Terminals. With the exception of the
VDD-U Unit, the adapters can also be used with D
term
Series E Multiline
Terminals.
A Multiline Terminal can have up to three adapters installed at the same
time. When attaching an APR-U, CTA-U, CTU(C)-U, CTU(S)-U, HFU-U,
or VDD-U Unit, an external power supply is required. Only one power
supply is needed even when more than one adapter is installed.
When an adapter is installed for the first time into a telephone, the base
cover on the Multiline Terminal may have to be modified. The base cover
has two access panels that are removed before the cover can be closed
over the adapters to complete the installation.
S
ECTION
2
P
REPARING
M
ULTILINE
T
ERMINAL FOR
A
DAPTER
I
NSTALLATION To prepare the Multiline Terminal for adapter installation:
1. Unplug the telephone cord from the terminal.
2. Turn the terminal upside down. Push the tabs indicated in Figure 7-1
Raising the Base Plate , and raise the inner area of the base plate.