Asl intercom WS 400 User Manual

R

WIRELESS SERIES

USER MANUAL

FOR THE

WS 400

FOUR UNIT WIRELESS BASE STATION

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 ...................................6

6.0 SETTING UP A CONNECTION ..................................8

7.0 COMMUNICATION MODES .......................................9

8.0 PRINCIPLES OF OPERATION.................................10

9.0 CABLING..................................................................11

10.0 PARTYLINE TECHNICAL CONCEPT.......................11

11.0 WARRANTY .............................................................11

12.0 TECHNICAL SPECIFICATIONS...............................11

User Manual WS 400 / Issue 1 © 2002 ASL Intercom, Utrecht, Holland.

1.0 GENERAL DESCRIPTION

The WS 400 is a four unit, wireless base
station housed in a strong steel 19”
housing.

On the front panel four sections of TX/RX
units with channel selectors, antennas and
LED indicators.

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
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:

· The WS 400

· User manual

· Four antenna’s

· Power cord

If any are missing, contact your dealer.

3.0 INSTALLATION

This WS 400 will form the base station for a
WS 19 or WS 29 beltpack and the interface
for that beltpack to the wired intercom
system. The unit has it’s own mains power
supply and will therefore not be any load to
the wired intercom system.

Adjust the ‘channel select’ switch to match
the selected channel on the beltpack.
After switching on the unit with the power

The unit is designed to be the base station
for the wireless beltpacks WS 19 and WS

29. Each of the four TX/RX units can
maintain a full duplex connection with a
beltpack and have separated XLR
connectors at the rear panel. The interface
to the wired system can be switched as
partyline or 4-wire mode.

ASL has taken great care to ensure this
product reaches you in flawless condition.
After unpacking the unit please inspect for
any physical damage, 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 guarantee section of this manual.

switch at the rear panel, the unit should
have contact with the beltpack(s).
To check this simply push the CALL or
TALK button on the beltpack and the “RX
ACTIVE” LED’s should indicate any activity
of the beltpack.

User Manual WS 400 / Issue 1 © 2002 ASL Intercom, Utrecht, Holland.

4.0 FRONT PANEL CONTROLS

1 RX active LED

This LED will be lit when the RX/TX Unit

receives data from an active beltpack.
When the beltpack is talking or sending
a CALL the led will be lit. When a
beltpack is only listening it will not be lit.

2 BELTPACK MODE LED’S

These LED’s will show the setting of the
audio interface. In case of a WS 19, the
top LED, 1 ch. Beltpack (A), will be lit
indicating that a single channel beltpack
is using this connection and that the
audio of that beltpack is routed to the
XLR connectors of channel A.
In case of a WS 29, the bottom LEDs, 2
ch. Beltpack (A+B) or 2 ch. Beltpack
(C+D), will be lit indicating that a dual
channel beltpack is using this connection
and that the audio of that beltpack is
routed to the XLR connectors of channel
A + B or to channel C + D. Please make
sure that a WS 29 is connected to either
channel A + B or to channel C + D.

3 SIDE TONE TRIMMER

This trimmer adjusts the level of your

own voice as you hear it in your headset.

The operating area is between fully

clockwise and minimum level. Adjusting
this signal does not affect the level of
your voice as it is heard by other
stations.

Adjustment procedure

:
Turn down the OWN VOICE volume
trimmer at the side panel of the beltpack.
(counter-clockwise)

Switch on the TALK function of the
beltpack (TALK button).
Talk into the microphone and listen to
your own voice, you might hear a
small delay in the signal.
Now turn down the volume of your
own voice by adjusting the SIDE
TONE trimmer at the base station of
the TX/RX unit to which the beltpack
is connected.
Adjust the trimmer so that the level of
your own voice is as low as possible.
Now turn up the volume of your own
voice by adjusting the OWN VOICE
trimmer to a level that you like.

4 CHANNEL SELECT SWITCH

With this switch the channel is
selected on which the base station will
communicate with the beltpack. The
selected channel must match the
channel set at the beltpack.

5 ANTENNA CONNECTOR

On this connector the supplied
antennas are to be connected.
Please read the section PRINCIPLES
OF OPERATION very carefully to be
sure of optimum performance of your
base station.

User Manual WS 400 / Issue 1 © 2002 ASL Intercom, Utrecht, Holland.