PAGE 3
User Manual PS 130 / Issue 2011 © ASL Intercom BV
1.0 GENERAL DESCRIPTION
The PS 230 is a dual channel speaker station
designed for use in both portable and fixed ASL
intercom systems. It incorporates a loudspeaker
and a gooseneck microphone and provides full
duplex communications.
The PS 230 RM model has a small built-in
electret microphone.
Each channel has Volume (listen level) Control, a
TALK and CALL button with LED indicators and a
2-stage side tone trimmer. Furthermore there are
trimmers for speaker attenuation and buzzer
volume.
The unit is equipped with a limiter for the
gooseneck microphone, allowing the user to
speak close into the microphone without giving
rise to overload and distortion.
Loudspeaker dimming is automatic when the
gooseneck microphone is active. Private
conversation may be carried out via the headset
connector with a headset or telephone handset.
When a headset is connected, both the
gooseneck microphone and speaker are disabled
automatically.
The XLR-4 headset connector can be replaced
(by ASL) by a XLR-5 connector for binaural use of
the headset.
Special attention has been paid to the intelligibility
of speech. By applying low noise/high speed op-
amps, a speech presence filter and a specially
developed high power bridged headphone
amplifier, communication is very comfortable even
in environments with high back-ground noise
level. There is a separate amplifier for the
loudspeaker.
The unique ASL CALL system provides both a
flashing red LED and a very characteristic sound
signal (the buzzer). Smooth operation is
guaranteed with the CALL button. Only a slight
touch makes the red LED flash, whilst holding the
button for two seconds activates the CALL sound
signal. The volume of this signal (the buzzer) can
be adjusted at the front panel.
Fully electronic switching increases reliability and
allows for :
- 'soft' microphone ON switching, latching or
momentary
- remote Mic Mute facility
- automatic speaker attenuation (adjustable),
when the microphone is activated
2.0 UNPACKING
The shipping carton contains the parts below:
*
The PS 230
*
User manual
If any are missing, contact your dealer.
ASL has taken great care to ensure this product
reaches you in flawless condition.
After unpacking the unit please inspect for any
physical damage to the unit, and retain the
shipping carton and relevant packing materials for
use should the unit need returning.
If any damage has occurred, please notify your
dealer immediately so that a written claim can be
initiated. Please also refer to the warranty section
of this manual.
3.0 INSTALLATION
Connecting the PS 230 to an intercom system is
straightforward. Connect the intercom lines (the
‘party lines’) to the LINE connectors on the side
panel of the PS 230.
There are no separate power connections or
batteries to install, as the necessary DC voltages
are derived from a master station or a separate
power supply, via the intercom connection cables.
Use professional flexible microphone cable with 2
wires and 1 shield only
The PS 230 is fully protected against wiring
mistakes (reverse power) or short circuit in the
interconnecting cables.
A special kit is available for mounting the PS 230
in a 19" rack, taking 2U of rack space.
