AUXILIARY AUDIO IN/OUT TERMINALS (10)
This connector provides an audio input screw-terminal connection for audio
from
3
rd
party
equipment, as well as an audio output screw-terminal connection for audio
to
3
rd
party
equipment. These connectors are common to the phono connectors.
CALL OUTPUT SELECT SWITCH (11)
This switch may be set to give
either
a normally open
or
a normally closed output at the
CALL OUT terminals. These terminals “repeat” the condition of the call-points’ CALL push-
button.
POWER INPUT (12)
The power input to the unit is 24 Volts DC (not 240 Volts AC, as on previous units). A
switch-mode power adapter is supplied with each unit. The AVPSU4 unit itself requires up
to 130mA, and each intercom unit requires up to 600mA @ 24 Volts. Any power supply
used here therefore must provide up to 800mA @ 24 Volts DC.
INSTALLATION NOTES
DO NOT CONNECT POWER UNTIL THE INSTALLATION IS COMPLETE!
The AVPSU4 unit has an internal, self-resetting power fuse, which will trip if the power
demand at these terminals exceeds approximately 650mA. Once the fuse has “tripped”,
which can happen accidentally if the terminals or cables are short-circuited during
installation or servicing, the fuse may be reset by removing the overload, and removing
the 24 Volt DC power input to the AVPSU4 for about 15 seconds. When the power is
restored, the fuse will have reset, and the unit should function normally.
The audio connections to and from the AV102 should be wired according to the
instructions and diagrams in this installation manual.
Connect the “CALL OUT” terminals to the alarm (or call) input of the monitoring
equipment. NOTE these are a clean-contact output for low voltage (<30 Volts) and low
current (<100mA)
ONLY!
Connect the audio inputs and outputs to the peripheral equipment. If connecting to an
ADPRO FastScan transmitter, use the 15 pin D connector on the front panel. If using other
equipment, use
either
the phono (RCA Jack) connectors
OR
the terminal connectors on
the rear panel.
NOTE
: Duplex (simultaneous two-way) audio is always enabled on the AV102SS. It is
NOT necessary for the caller to press the push-button to speak. This button is only used
to initiate the call.
Select whether the call output should be normally open or normally closed by setting the
switch on the rear of the unit to the appropriate position.
Apply power to the system.
The yellow LED (marked (“POWER”) on the AVPSU4 should light.
DOCUMENT NUMBER AV102SS/OEM/01 REVISION 6.1 1st August 2006 Page
18
of 22
