Asl intercom BS 15 User Manual

BASIC SERIES

USER MANUAL

FOR THE

BS 15

SINGLE CHANNEL BELTPACK

CONTENTS

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

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

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

4.0 FRONT PANEL CONTROLS ..................... 4

5.0 REAR PANEL CONNECTORS ................... 5

6.0 INTERNAL CONTROLS ........................ 5

7.0 CABLING .................................... 6

8.0 PARTY LINE, TECHNICAL CONCEPT ............. 7

9.0 GUARANTEE ................................. 7

10.0 TECHNICAL SPECIFICATIONS .................. 7

User Manual BS 15 / Issue 1 © 1994 ASL Intercom, Utrecht, Holland.

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User Manual BS 15 / Issue 1 © 1994 ASL Intercom, Utrecht, Holland.

1.0 GENERAL DESCRIPTION

The BS 15 is a portable single channel user station The unique ASL CALL system provides both a flashing red
housed in a strong ABS case. LED and a very distinctive and characteristic sound signal.

Smooth operation is guaranteed with the CALL button. A
On the front panel are a Volume (listen level) control, a momentary push makes the red LED flash, whilst holding
Talk and a Call button with LED indicators, a sidetone the button for two seconds will activate the CALL sound
trimmer and a buzzer volume. signal. The volume of the sound signal (buzzer) can be

adjusted at the front panel.
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 amplifier,
communication is very comfortable even in environments
with a very high background noise level.

2.0 UNPACKING

The shipping carton contains the parts listed below: ASL has taken great care to ensure this product reaches

you in flawless condition.

* The BS 15 After unpacking the unit please inspect for any physical
* User manual damage to the unit, and retain the shipping carton and

relevant packing materials for use should the unit need
If any are missing, contact your dealer. returning.

3.0 INSTALLATION

This BS 15 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 the intercom
master station or power supply, via the intercom connecti­on cable.

To connect the BS 15 onto the intercom system, use
professional flexible microphone cable with 2 wires and 1
shield only. Connect the system intercom cable into the
LINE connector socket on the rear panel. Finally connect
the headset plug into the HEADSET connector, also on the
rear panel.

If any damage has occured, please notify your dealer

immediately so that a written claim can be initiated. Please

also refer to the guarantee section of this manual.

The BS 15 is fully protected against mis-wiring (reverse
power) or short-circuit in the interconnecting cables.

User Manual BS 15 / Issue 1 © 1994 ASL Intercom, Utrecht, Holland.

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4.0 FRONT PANEL CONTROLS

1 VOLUME control knob

This knob adjusts the listen level for the headset.

2 TALK button

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

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.
Press and hold the button for 2 seconds will activate
the call buzzer.
After the CALL button is released the LEDS will
continue to flash for further 2 seconds.

4 SIDETONE trimmer

This trimmer adjusts the level of your own voice as you
hear it in your headset.

Adjustment procedure :

- set trimmer in start position : fully clockwise.

- switch off the microphone of all connected
(speaker!) stations.

- switch on the microphone of the BS 15.

- turn up volume.

- speak into the headset microphone.

- adjust the listen level by turning the sidetone
trimmer.

The operating area is between fully clockwise and
minimum level. Adjusting the sidetone does not affect
the level of your voice as it is heard by other stations.

5 BUZZER VOLUME trimmer

This trimmer adjusts the volume of the internal buzzer,
which is located behind the front panel.
The buzzer is activated if you press the CALL button of
the BS 15 (3) or a CALL button of any other station (on
the channel to which the BS 15 is connected), longer
than 2 seconds.

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User Manual BS 15 / Issue 1 © 1994 ASL Intercom, Utrecht, Holland.