User manual ASL INTERCOM PS 630

[. . . ] Each channel has a Volume (listen level) control, a Talk and Call button with LED indicators, channel on/off switch and a two-stage sidetone trimmer. The unit is equiped with a limiter for the gooseneck microphone, allowing the user to speak close into the microphone without giving rise to overload and distortion. Private conversation may be carried out via the headset connector with a headset or telephone handset. When a headset is connected, both gooseneck microphone and speaker are disabled automatically. [. . . ] 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 7 SIDETONE HI trimmers These trimmers (one for each channel) control the 4 User Manual PS 630 / Issue 1 © 1994 ASL Intercom, Utrecht, Holland. rejection in the high frequency range. It prevents the speaker from feeding back into the gooseneck microphone (unit feedback). 4. 0 FRONT PANEL CONTROLS & CONNECTOR continued 8 SPEAKER ATTENUATOR trimmer This trimmer allows you to dim the speaker automatically, when the gooseneck microphone is switched on. - system feedback or a 'hollow' sound when the gooseneck microphones of other speaker stations on the same channel are activated simultaneously. The speaker attenuator has no effect when a headset is used. - on the left or right can. 10 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. phones When connecting a headset, speaker and gooseneck microphone will be disabled automatically. The PS 630 can optionally be equiped with a XLR6 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 six channels can independantly be placed: - on the left or right can. 11 GOOSENECK MICROPHONE A high quality electret noise canceling microphone. A limiter prevents the mic pre-amp from clipping when speaking close in the microphone. 12 LOUDSPEAKER A high quality loudspeaker driven by a 1. 3 Watt amplifier. The speaker is automatically disabled when a headset is used. 9 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 630 or a CALL button of any other station (on the channel to which the PS 630 is connected), longer than 2 seconds and the buzzers are not muted (on the master station or power supply). 10 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 ohm when in parallel. The headset microphone may be of the dynamic or electret type Pin assignments : 1. phones When connecting a headset, speaker and gooseneck microphone will be disabled automatically. The PS 630 can optionally be equiped with a XLR6 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 six channels can independantly be placed: User Manual PS 630 / Issue 1 © 1994 ASL Intercom, Utrecht, Holland. 5 5. 0 REAR PANEL CONTROLS & CONNECTOR 13 LINE conectors for channel A thru F These twelve XLR-3 connectors are for connecting the PS 630 to the intercom system. [. . . ] impedance 200 ohms gain 40 dB - 70 dB (adjustable internally) presence filter +6 dB at 5 kHz frequency response 200 Hz - 13 kHz (-3 dB) V electret mic +9 V DC HEADPHONES DRIVER AMP max. output level normal 14 V rms (200 ohms) binaural 8 V rms (400 ohms) max. output power normal 0. 5 W rms (each can) binaural 0. 16 W rms (each can) SPEAKER DRIVER AMP speaker impedance max. SPL DIMENSIONS AND WEIGHT width height depth weight 50 ohms 1. 3 W rms 3 mA rms > 150 Kohms 0 - 30dB adjustable 100 dBA 9. 0 GUARANTEE This unit is warranted by ASL Intercom to the original end-user purchaser against defects in workmanship and materials in it's manufacture for a period of one year from date of shipment to the end-user. [. . . ]