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TWO-LINE
INSTALLATION
Two-line installations may require a two-line
T-Adapter for your machine to operate correctly.
The T-Adapter allows you to connect your
machine to Line 1 or Line 2. The TC-540 will
only answer one line.
MULTI-LINE
INSTALLATION
Installations with more than two lines, such as a
business phone system, may require a separate
RJ11 jack for answering machines. Please
contact your telephone equipment provider for
additional information.
You can use the TC-540 as an extension phone
on a business phone system, but some systems
will require that you install an A+A1 Adapter to
light the in-use indicator on the receptionist’s
console. See the accessory order form on the
last page of this owner’s guide to order an A+A1
Adapter.
BATTERY BACKUP
Install one 9 volt (9V) battery to protect your
outgoing and incoming messages and any
programmed information (i.e. time/day stamp)
during a power failure. (The 9V battery is not
included.)
LOW BATTERY
INDICATOR ON THE
BASE UNIT
If there is a power failure, the battery saves your
outgoing messages, incoming messages, and
time/day setting until the battery is depleted. If
the battery power is low, “Lb” will flash in the
display.
3Replace the cover. The battery
connection will not be activated until the
cover is replaced.
2Install a 9V alkaline battery. Make sure
the battery is connected correctly.
Turn the TC-540 over and remove the
battery cover.
1
To protect your messages and programmed
information during a power failure or to replace
the battery when “Lb” appears in the display:
INSTALLING A 9V
BATTERY
3
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A
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B
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Lb
POWER FAILURE & TWO
LINE INSTALLATION
GENERAL