Asl intercom PS 430 User Manual

PRO SERIES

USER MANUAL

FOR THE

PS 430

FOUR CHANNEL SPEAKER STATION

CONTENTS

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

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

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

4.0 FRONT PANEL CONTROLS AND CONNECTOR .... 4

5.0 SIDE 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

1.0 GENERAL DESCRIPTION

The PS 430 is a four channel speaker station designed for Special attention has been paid to the intelligibility of use in both portable and fixed intercom systems. speech. By applying low noise/high speed opamps, a It incorporates a loudspeaker and a gooseneck speech presence filter and a specially developed high microphone and provides full duplex communications power bridged headphone amplifier, communication is within an ASL intercom system. The PS 430 RM model very comfortable even in environments with high backhas a small built-in electret microphone. ground noise level. There is a separate amplifier for the

loudspeaker. Each channel has a Volume (listen level) control, a Talk and Call button with LED indicators and a two-stage The unique ASL CALL system provides both a flashing red sidetone trimmer. A master volume controls the total LED and a very distinctive and characteristic sound signal. speaker/headset volume. Smooth operation is guaranteed with the CALL button.

Only a slight touch makes the red LED flash, whilst holding The unit is equiped with a limiter for the gooseneck the button for two seconds will activate the CALL sound microphone, allowing the user to speak close into the signal. The volume of the sound signal (buzzer) can be microphone without giving rise to overload and distortion. adjusted at the front panel. Loudspeaker dimming is automatic when the microphone is active. Private conversation may be carried out via the Fully electronic switching increases reliability and allows headset connector with a headset or telephone handset. for : When a headset is connected, both gooseneck - 'soft' microphone ON switching, latched or momentary microphone and speaker are disabled automatically. - remote Mic Mute facility.

- automatic speaker attenuation (adjustable), when the As an option, a XLR-6 headset connector can be fitted for microphone is activated. binaural use of the headset. By setting internally mounted jumpers, each of the 4 channels can be assigned to either the left or the right headset can, or to both headset cans.

2.0 UNPACKING

The shipping carton contains the parts listed below: After unpacking the unit please inspect for any physical

* The PS 430 damage to the unit, and retain the shipping carton and * Two Y-cords XLR-5 > 2x XLR-3 relevant packing materials for use should the unit need * User manual returning.

If any are missing, contact your dealer. If any damage has occured, please notify your dealer

immediately so that a written claim can be initiated. Please ASL has taken great care to ensure this product reaches also refer to the guarantee section of this manual. you in flawless condition.

3.0 INSTALLATION

This PS 430 will form part of an existing or new intercom The PS 430 is fully protected against mis wiring (reverse system, and connection to it is straightforward. There are power) or short circuit in the interconnect cables. no separate power connections or batteries to install, as the necessary DC voltages are derived from the intercom A special kit is available for mounting the PS 430 in a 19" master station or power supply, via the intercom rack, taking 2U of rackspace. connection cable.

To connect the PS 430 onto the intercom system, use professional flexible microphone cable with 2 wires and 1 shield only. Connect the system intercom cables into the LINE connector sockets on the side panel, using both Ycords. Finally, when private conversation is desired, connect the listening headset plug into the HEADSET connector on the front panel.

4.0 FRONT PANEL CONTROLS & CONNECTOR

1 LISTEN LEVEL control knobs 6 SIDETONE HI trimmers

These knobs preset the listen level for each channel These trimmers (one for each channel) control the separately. rejection in the high frequency range. It compensates

the capacity of the interconnecting cables. It prevents

2 TALK buttons

These buttons allow you to talk to each channel microphone (unit feedback). separately or simultaneously. Any Talk button activates the gooseneck or headset microphone, the large green LED at each channel This trimmer allows you to dim the speaker automatiindicates if the microphone is switched on to that cally, when the gooseneck microphone is switched on. channel. It prevents:

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 - switch off TALK buttons. a mic mute from a PRO Series master station or power - inject an audio signal on the selected intercom supply. channel.

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 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 430.

- 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.

the speaker from feeding back into the gooseneck

7 SPEAKER ATTENUATOR trimmer

- unit feedback if sidetone rejection is not sufficient.

- system feedback or a 'hollow' sound when the gooseneck microphones of other speaker stations on the same channel are activated simultaneously.

Adjustment procedure :

- turn up volume.

- activate microphone and adjust the desired amount of attenuation.

The speaker attenuator has no effect when a headset is used.

8 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 PS 430 or a CALL button of any other station (on the channel to which the PS 430 is connected), longer than 2 seconds and the buzzers are not muted (on the master station or power supply).

9 HEADSET connector

A XLR-4 type connector for the connection of a local headset when private conversation is desired. These must have a can impedance of 200 ohms (or greater), or each minimum 400 ohmd when in parallel. The headset microphone may be of the dynamic or electret type

Pin assignments :

1. Shield mic. (GND)

2. mic. +

3. phones +

4. phones -

When connecting a headset, speaker and gooseneck microphone will be disabled automatically. The PS 430 can optionally be equiped with a XLR-6 headset connector for binaural use. Jumpers on the front PCB board inside determine the destination of the listen signals on the headset. Each listen signal of the four channels can independantly be placed:

- on the left or right can.

- on both cans.

+ 7 hidden pages

Asl intercom PS 430 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual