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Technical Precautions - Aiphone TC-M Series Installation & Operation Manual

Internal-telephone system

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TC-M places a buzzer-activating call to a TB-SE sub
Buzzer sounds continuously at TB-SE sub, in
addition to ordinary tremolo. Pick up on the
TB-SE station, that the buzzer is connected to.
Adjusting receive and call tone volume
possible.
A call from TB-SE subs that are connected to two masters activates
tremolo tone at both masters. When the controlling TC-M is busy,
the other TC-M may pick up. In this case, the sub hears both
tremolo and busy tones.
★ Dual-master has an operation that, when TC-M1 places a call to
either TC-M2 or a common TB-SE that is already in
communication, the talk line is connected among 3 parties.
It reduces communication volume. One party should hang up to
restore normal volume.
To call TC-M master, simply pick up and it rings TC-M with tremolo
tone, which continues ringing until the call is answered. Intermittent
tone means the master is occupied. Hang up or continue to hold.
When called by tremolo tone, simply pick up.
7
TECHNICAL PRECAUTIONS-
★ The power switch is located on back panel of TC-M console, which should be placed ON, except for
special occasions. If the system malfunctions, turn off and on TC-M master, by which the system
may reset itself. Possible causes are; power supply is unplugged, connecting wires are loosened or
shorted. Do not attempt to open TC-M equipment nor change wiring. Ask qualified personnel.
★ At end of each communication, be sure to place handset in cradle properly. If not, TC-M master or
TB-SE sub will not hear the call tone.
★ The TC-M is rated to operate at temperatures between CPC - +40°C (32<>F - 104°F).
★ Clean the TC-M equipment with a soft cloth dampened with neutral household cleanser. Never use
any abrasive cleaner or cloth.

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