ASL INTERCOM PS 430 Manuel d'utilisateur télécharger pdf (Page 5)

This single channel unit is housed in a

steel 19”/1U case and is powered via

the intercom party line from a PRO

Series master station or separate

power supply unit.

Intercom Line Level Controls

Receive and send level controls are

provided on the front panel.

Telephone Line Controls

On the front panel are a ‘connect’

switch and a ‘hold’ LED indicator.

Sidetone

Trimmers and Test Tone

Two sidetone trimmers are provided:

■ a two stage trimmer which controls

the internal input/output separa-

tion of the intercom line

■ a trimmer which controls the inter-

nal input/output separation of the

telephone line.

The PS 150 has a built-in test tone

signal to aid side-tone adjusting pro-

cedures.

Headset

A XLR-4 connector on the front panel

allows a headset to be connected for

monitoring the side-tone adjusting

procedures.

Input / Output

Both in/outputs are transformer bal-

anced.

In receive mode (RX) the audio from

the wireless system is send to the

wired intercom system. Its volume can

be controlled via a ‘Receive’ volume

knob. In transmit mode (TX) the audio

signal from the wired intercom sys-

tem is send to the wireless system. Its

volume can be controlled via a ‘Send’

volume knob.

Sidetone

A three stage, high rejection, sidetone

circuit can be adjusted to maximum

setting using the built-in test tone

generator.This gives the user an opti-

mum performance for all transmit

modes available.

Three modes are available to switch

from receive to send.The users select

the most appropriate with a switch at

the front panel.These modes are:

CALL

Transmit mode can be enabled by

pushing any CALL button at the con-

nected intercom units.All audio pres-

ent at the wired intercom will be

broadcasted onto the wireless system.

The buzzers of all connected stations

are automatically disabled in this

mode.

PTT

Transmit mode can be enabled by an

external switch that can be connected

to the PS 155.

VOX

Transmit mode can be enabled by an

audio detection circuit on the wired

intercom.The VOX circuit has a spe-

cial frequency contouring circuit that

is optimised for the human voice.The

attack level and release time can be

adjusted at the front panel.

The PS 260 is designed to interface an ASL intercom system to external

audio equipment or to a 4-wire intercom system. This allows fixed 4-

wire systems to be temporarily extended with ASL intercom stations, or

a 4-wire TV camera intercom can be connected directly onto an ASL net-

work. Other applications for the PS 260 might be the injection of exter-

nal audio signals into ASL intercom lines or monitoring of the intercom

signals by recorders or paging systems.

The PS 150 is designed to interface an ASL intercom system to a tele-

phone or 2-wire system and is used to allow communication between

an ASL intercom network and a standard telephone, or between two

ASL intercom networks via a telephone line.

(Rear panel)

This dual channel unit is housed in a

steel 19”/1U case and is powered via

the intercom party line from a PRO

Series master station or separate

power supply unit.

Inputs and Outputs

For each channel an input level con-

trol and an output level control are

provided on the front panel.

The inputs are electronically balanced,

the outputs are transformer balanced.

The PS 260T is identical to the PS 260

except that it has transformer bal-

anced inputs.

Sidetone

Trimmers and Test Tone

For each channel, a two stage side-

tone trimmer with test tone signal is

provided.

PS 150 SINGLE CHANNEL TELEPHONE INTERFACE

PS 155 WIRELESS INTERFACE

PS 260(T) DUAL CHANNEL 4-WIRE AUDIO INTERFACE

The ASL PS 155 is designed to be a tabletop, single channel audio

interface between simplex wireless intercom systems and ASL partyli-

ne intercom systems. Special attention has been paid to the ease of

operation by the user, enabling the user to expand his intercom

system with a reliable and locally approved wireless intercom system.

PRO SERIES

1 2 3 4 5 6

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ASL INTERCOM PS 430 Manuel d'utilisateur Page 5

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