ASL INTERCOM PS 278 User Manual
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ASL INTERCOM PS 278 User Manual

Pro series dual channel master station
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PRO SERIES
USER MANUAL
DUAL CHANNEL MASTER STATION
CONTENTS
1.0
GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . 1
2.0
UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3.0
MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . . . . 1
4.0
MAINS POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5.0
FRONT PANEL CONTROLS . . . . . . . . . . . . . . . . . . . . . 4
6.0
7.0
INTERNAL CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . 7
8.0
CABLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
9.0
PARTY LINE, TECHNICAL CONCEPT . . . . . . . . . . . . . 9
10.0
GUARANTEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
11.0
DESIGN CRITERIA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
12.0
TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . 10
User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.
FOR THE
PS 278

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Summary of Contents for ASL INTERCOM PS 278

  • Page 1: Table Of Contents

    DESIGN CRITERIA ......9 12.0 TECHNICAL SPECIFICATIONS ....10 User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.

  • Page 2: General Description

    GENERAL DESCRIPTION The PS 278 is designed to be a master unit in an ASL The unique ASL CALL system provides both a flashing red intercom system and can be used in portable as well as LED and a very distinctive and characteristic sound signal.

  • Page 3: Mains Power

    The PS 278 employs professionally designed audio input and output circuits which do not require the disconnection of any safety earth for the avoidance of hum loops. User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.
  • Page 4 Setting for 230 V AC Voltage: 1. Red 2. White + Green 3. Yellow Mains Fuse 100 - 120V T 630 mA 220 - 240V T 315 mA User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.

  • Page 5: Front Panel Controls

    5 BUZZER VOLUME trimmer This trimmer adjusts the volume of the buzzer. 6 ALL MIC'S ON/OFF button With this pushbutton all microphones of the connected stations can be muted. User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.
  • Page 6 See section 7.1 Internal Jumpers and Controls. Momentary switching: When a TALK button is pressed and held, the microphone will be switched on, and when released, will be switched off. User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.

  • Page 7: Rear Panel Controls And Connectors

    220 - 240 VAC T 315 mA 100 - 120 VAC T 630 mA Spare fuses will be found in the small packet supplied with the unit. User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.

  • Page 8: Internal Controls

    Right can channel B and AUX-signal. Internal mic gain See also section 7.0 - Internal Controls The mic gain trimmer is labeled: P2 for the mic gain setting. User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.

  • Page 9: Cabling

    ¼ ¼ See Party Line, Technical Concept User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.

  • Page 10: Party Line, Technical Concept

    THIS PRODUCT WAS DESIGNED, DEVELOPED AND MANUFACTURED BY : AMPCO SOUND LAB BV MAARSSEN (UTRECHT) HOLLAND User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.

  • Page 11: Technical Specifications

    +30 V DC (12 V to 32 V) mic mute power interrupt time 0.1 sec Note: 0 dBu = 775 mV into open circuit. ASL reserves the right to alter specifications without further notice. User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.
  • Page 12 User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.
  • Page 13 User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.
  • Page 14 User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.
  • Page 15 User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.
  • Page 16 User Manual PS 278 / Issue 2 © 1996 ASL Intercom, Utrecht, Holland.

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