Asl intercom PS 130 User Manual

PS 130

SINGLE CHANNEL SPEAKER STATION

USER MANUAL

User Manual PS 130 / Issue 2010 / © ASL Intercom BV

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CONTENT OF THIS USER MANUAL

1.0 GENERAL DESCRIPTION ......................................................................................................................................... 3

2.0 UNPACKING ........................................................................................................................................................... 3

3.0 INSTALLATION ....................................................................................................................................................... 3

4.0 FRONTPANEL CONTROLS & CONNECTORS ........................................................................................................... 4

5.0 SIDE PANEL CONNECTORS .................................................................................................................................... 5

6.0 INTERNAL CONTROLS ............................................................................................................................................ 6

7.0 PARTY LINE, TECHNICAL CONCEPT ........................................................................................................................ 6

8.0 WARRANTY ............................................................................................................................................................ 6

9.0 CABLING ................................................................................................................................................................ 7

10.0 TECHNICAL SPECIFICATIONS ................................................................................................................................. 8

11.0 PS 130 BLOCK DIAGRAM ....................................................................................................................................... 9

12.0 SYSTEM CONFIGURATION ................................................................................................................................... 10

13.0 EARTHING CONCEPT ........................................................................................................................................... 11

User Manual PS 130 / Issue 2010 / © ASL Intercom BV

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1.0 GENERAL DESCRIPTION

The PS 130 is a single 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 130 RM model has a small built-in
electret microphone.

At the front panel are a Volume (listen level)
Control, a TALK and CALL button with LED
indicators, and trimmers for side tone, 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
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.

2.0 UNPACKING

The shipping carton contains the parts below:
* The PS 130
* User manual
If any are missing, contact your dealer.

ASL has taken great care to ensure this product
reaches you in flawless condition.

3.0 INSTALLATION

This PS 130 will form part of an existing or new
intercom system, and connection to it is
straightforward. 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 cable.

To connect the PS 130 to the intercom system,
use professional flexible microphone cable with 2
wires and 1 shield only. Connect the system

Special attention has been paid to the intelligibility
of speech. By applying low noise/high speed op­amps, 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 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

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.

intercom cable to the LINE connector on the side
panel. Finally, when private conversation is
desired, connect a headset plug into the XLR-4
HEADSET connector on the front panel.

The PS 130 is fully protected against mis-wiring
(reverse power) or short circuit in the interconnect
cables.

A special kit is available for mounting the PS 130
in a 19" rack, taking 2RU of rack space.

User Manual PS 130 / Issue 2010 / © ASL Intercom BV

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4.0 FRONTPANEL CONTROLS & CONNECTORS

1 VOLUME control knob

This knob adjusts the listen level for the
headset and the loudspeaker.

2 TALK button

This push button activates the gooseneck
or headset microphone, the large green
LED indicates if the microphone is
switched on.

Latched switching:

When a TALK button is pressed quickly,
the microphone will be switched on, and is
electronically latched. When pressed
again, the microphone will be switched off.
When the microphone is latched on, it can
be muted by a Mic Mute from a PRO
Series master station or separate power
supply.

Momentary switching:

When a TALK button is pushed and held,
the microphone switches on and when
released switches off.

3 CALL button

This push button activates the call system.
A momentary push will send a call signal
to all stations connected to the intercom
channel and the call LEDS will start
flashing. Push and hold the button for 2
seconds will activate the call buzzer, if not
muted. After the CALL button is released
the LEDS will continue to flash for further 2
seconds.

4 SIDE TONE LEVEL trimmer

This trimmer controls the level of your own
voice as you hear it in the speaker or in
the headset. It prevents the speaker from
feeding back into the microphone.

5 SIDE TONE HI trimmer

The HI trimmer controls the rejection in the
high frequency range. The trimmer
compensates the capacity of the
interconnecting cables and prevents the
loudspeaker from feeding back into the
microphone (unit feedback).

Adjustment procedure for both side tone
trimmers, first 4 and then 5 :

- set trimmer in start position: fully
clockwise

- switch off the microphones of all
connected (speaker) stations

- switch on the headset microphone of
this PS 130

- turn up the volume

- speak into the headset microphone

- adjust the listen level by turning the
side tone trimmer

For optimum result, repeat the above
mentioned procedure for trimmer 4 & 5.
The operating area is between fully
clockwise and minimum level. Adjusting
the side tone does not affect the level of
your voice as it is heard by other stations.

User Manual PS 130 / Issue 2010 / © ASL Intercom BV