User Manual PS 430 / Issue 1 © 1994 ASL Intercom, Utrecht, Holland.
3
1.0 GENERAL DESCRIPTION
The PS 430 is a four channel speaker station designed for Special attention has been paid to the intelligibility of
use in both portable and fixed intercom systems. speech. By applying low noise/high speed opamps, a
It incorporates a loudspeaker and a gooseneck speech presence filter and a specially developed high
microphone and provides full duplex communications power bridged headphone amplifier, communication is
within an ASL intercom system. The PS 430 RM model very comfortable even in environments with high back-
has a small built-in electret microphone. ground noise level. There is a separate amplifier for the
Each channel has a Volume (listen level) control, a Talk
and Call button with LED indicators and a two-stage The unique ASL CALL system provides both a flashing red
sidetone trimmer. A master volume controls the total LED and a very distinctive and characteristic sound signal.
speaker/headset volume. Smooth operation is guaranteed with the CALL button.
The unit is equiped with a limiter for the gooseneck the button for two seconds will activate the CALL sound
microphone, allowing the user to speak close into the signal. The volume of the sound signal (buzzer) can be
microphone without giving rise to overload and distortion. adjusted at the front panel.
Loudspeaker dimming is automatic when the microphone
is active. Private conversation may be carried out via the Fully electronic switching increases reliability and allows
headset connector with a headset or telephone handset. for :
When a headset is connected, both gooseneck - 'soft' microphone ON switching, latched or momentary
microphone and speaker are disabled automatically. - remote Mic Mute facility.
As an option, a XLR-6 headset connector can be fitted for microphone is activated.
binaural use of the headset. By setting internally mounted
jumpers, each of the 4 channels can be assigned to either
the left or the right headset can, or to both headset cans.
loudspeaker.
Only a slight touch makes the red LED flash, whilst holding
- automatic speaker attenuation (adjustable), when the
2.0 UNPACKING
The shipping carton contains the parts listed below: After unpacking the unit please inspect for any physical
* The PS 430 damage to the unit, and retain the shipping carton and
* Two Y-cords XLR-5 > 2x XLR-3 relevant packing materials for use should the unit need
* User manual returning.
If any are missing, contact your dealer. If any damage has occured, please notify your dealer
ASL has taken great care to ensure this product reaches also refer to the guarantee section of this manual.
you in flawless condition.
immediately so that a written claim can be initiated. Please
3.0 INSTALLATION
This PS 430 will form part of an existing or new intercom The PS 430 is fully protected against mis wiring (reverse
system, and connection to it is straightforward. There are power) or short circuit in the interconnect cables.
no separate power connections or batteries to install, as
the necessary DC voltages are derived from the intercom A special kit is available for mounting the PS 430 in a 19"
master station or power supply, via the intercom rack, taking 2U of rackspace.
connection cable.
To connect the PS 430 onto the intercom system, use
professional flexible microphone cable with 2 wires and 1
shield only. Connect the system intercom cables into the
LINE connector sockets on the side panel, using both Y-
cords. Finally, when private conversation is desired,
connect the listening headset plug into the HEADSET
connector on the front panel.
(8 Seiten)
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