TDA-500 DIGITAL POWER AMPLIFIER
User Manual
armtel.com
page 17/28
© Armtel
ENG
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set the potentiometers "VOLUME" to the extreme left position corresponding to
the minimum volume level;
−
connect the TDA-500 with the power cable to the 230 V AC power supply
through the socket containing the safety earthing terminal.
Note
– In the event of a power failure from the 230 V power supply, the TDA-500 will
automatically switch to backup power supply.
2.4.5 TDA-500 is dismantling in the following order:
−
disconnect power supply of TDA-500 and communication cables;
−
dismantle TDA-500 from the cabinet (rack);
−
pack the TDA-500 in consumer packaging.
2.5 Operation
2.5.1 Activity description
2.5.1.1 TDA-500 is intended for amplifying audio frequency signals and transmitting
them over a two-wire communication line, for working with acoustic systems in sound
amplification and notification complexes. TDA-500 is designed to amplify the power of low-
frequency signals in DCN and IPN systems manufactured by Armtel LLC and is connected to
them via ACM-IP or ACM-IP2.
2.5.1.2 TDA-500 generates output signals of 50 or 100 V.
2.5.1.3 TDA-500 is designed for continuous 24-hour a day operations.
2.5.1.4 The TDA-500 is powered from a 230 V AC power supply. Additionally, it is
possible to connect a backup power supply in the form of a 48 V DC power supply. In the
event of a power failure, the TDA-500 automatically switches to a backup power supply.
2.5.1.5 Each channel of the TDA-500 provides balanced line inputs for connecting audio
sources and balanced line outputs for cascading multiple amplifiers.
2.5.1.6 The TDA-500 operating modes are displayed on the front panel with LED
indication. Volume, treble and bass are controlled by potentiometers using a slotted
screwdriver with an insulated handle.
2.5.2 General requirements
2.5.2.1 For operation of TDA-500 are allowed personnel who have been instructed and
become familiar with the requirements of this User Manual.
