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PRO SERIES

USER MANUAL

FOR THE

PS 280

DUAL CHANNEL POWER SUPPLY

CONTENTS

1.0

GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . 1

2.0

UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3.0

MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . . . . 1

4.0

MAINS POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

5.0

FRONT PANEL CONTROLS . . . . . . . . . . . . . . . . . . . . . 3

6.0

REAR PANEL CONTROLS AND CONNECTORS . . . . 3

7.0

CABLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

8.0

PARTY LINE, TECHNICAL CONCEPT . . . . . . . . . . . . . 5

9.0

GUARANTEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

10.0

TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . 5

User Manual PS 280 / Issue 1 © 1994  ASL Intercom, Utrecht, Holland.

Summary of Contents for PS 280

Page 1: ...ION 1 2 0 UNPACKING 1 3 0 MECHANICAL INSTALLATION 1 4 0 MAINS POWER 1 5 0 FRONT PANEL CONTROLS 3 6 0 REAR PANEL CONTROLS AND CONNECTORS 3 7 0 CABLING 4 8 0 PARTY LINE TECHNICAL CONCEPT 5 9 0 GUARANTEE 5 10 0 TECHNICAL SPECIFICATIONS 5 User Manual PS 280 Issue 1 1994 ASL Intercom Utrecht Holland ...

Page 2: ...relevant packing materials for use should the unit need If any are missing contact your dealer With the PS 280 will be a small packet of spare fuses immediately so that a written claim can be initiated Please Please keep them in a safe place also refer to the guarantee section of this manual There is also one spare fuse included in the mains inlet returning If any damage has occured please notify ...

Page 3: ...the terminal which is marked with the letter L or coloured red Those units that are supplied to the North American market will have an integral moulded 3 pin connector which is provided to satisfy required local standards 1 Red Green 3 Yellow 4 1 SAFETY EARTHING The green and yellow wire of the mains cord must always The PS 280 employs professionally designed audio input be connected to the electr...

Page 4: ...land 3 Turn on the power with the red button The red overload LED will light up for about 3 seconds then extinguishes and then the green power LED will go on indicating the station is active See for further installation and operation the concerning sections ...

Page 5: ...load LED extinguishes each of the two intercom lines very shortly every 3 seconds During thermal overload the LED burns continuously This overload LED also comes on every time you switch on the main power 5 ALL BUZZERS ON OFF button 6 AUX VOLUME control knobs 6 0 REAR PANEL CONTROLS CONNECTORS 7 A B LINE connectors 9 FUSE These XLR 3 type connectors are for connecting user This fuse protects the P...

Page 6: ...creen to XLR pin 1 The screen of each separate microphone cable and or Intercom cables should cross with energy cables in an the screen of each single pair in a multipair cable angle of 90 only should be connected to pin 1 of each XLR 3 connector Intercom cables should never be in the same metal Do not connect this cable screen to the metal housing trunks with energy cables of the connector or to ...

Page 7: ...h 19 483 mm talk and listen simultaneously height 1U 44 5 mm due to the high bridging impedance offered by each depth 150 mm station the number of stations on line has no weight 2 55 Kg influence on the level of the communications signal power and audio to the intercom stations use the same cable intercom line impedance 350 ohms 1kHz The Call signal is also sent as a current on the audio line inte...

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