ASL INTERCOM PRO Series Руководство пользователя - Страница 4

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A special kit is included for mounting the PS 630 in a

19" rack, taking 2U of rackspace.

4.0

FRONT PANEL CONTROLS & CONNECTOR

1 LISTEN LEVEL control knobs

These knobs preset the listen level for each

channel separately.

2 TALK buttons

These buttons allow you to talk to each channel

separately or simultaneously.

Any Talk button activates the gooseneck or

headset microphone, the large green LED at each

channel indicates if the microphone is switched on

to that channel.

Latched switching:

When a TALK button is pressed quickly, the

microphone will be switched on, and is electroni-

cally 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 power supply.

Momentary switching:

When a TALK button is pressed and held, the

microphone will be switched on, and when

released, will be switched off.

3 CALL buttons

These push buttons activate the call system, for

each channel separately.

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, if not muted.

After the CALL button is released the LEDS will

continue to flash for further 2 seconds.

4 MASTER VOLUME

This knob adjusts the volume of the speaker or

headset.

5 PGM VOLUME

This knob adjusts the volume of the PGM input.

Depending in the setting of the internal jumpers the

PGM volume is also controlled by the master

volume

knob.

6 SIDETONE LEVEL trimmers

These trimmers (one for each channel) control the

level of your own voice as you hear it in the

speaker or headset. It prevents the speaker from

feeding back into the gooseneck microphone.

Adjustment procedure for all sidetone trimmers:

set trimmer in start position : fully clockwise.

switch off the microphone of all connected

(speaker!) stations.

switch on the microphone of the PS 630.

turn up volume.

speak into the headset microphone.

adjust the listen level by turning the sidetone

trimmers.

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.

7 SIDETONE HI trimmers

These trimmers (one for each channel) control the