User manual

ManualsBrandsASL INTERCOM ManualsConsumer electronicsBS 181

BASIC SERIES

USER MANUAL

FOR THE

BS 181

SINGLE CHANNEL POWER SUPPLY

CONTENTS

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

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

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

4.0 MAINS POWER ............................... 4

5.0 FRONT PANEL CONTROLS ..................... 5

6.0 REAR PANEL CONNECTORS ................... 5

7.0 CABLING .................................... 6

8.0 PARTY LINE, TECHNICAL CONCEPT ............. 7

9.0 GUARANTEE ................................. 7

10.0 TECHNICAL SPECIFICATIONS .................. 7

Summary of content (11 pages)

PAGE 1
BASIC SERIES USER MANUAL FOR THE BS 181 SINGLE CHANNEL POWER SUPPLY CONTENTS 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . . . . MAINS POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FRONT PANEL CONTROLS . . . . . . . . . . . . . . . . . . . . . REAR PANEL CONNECTORS . . . . . . . . . . . . . . .
PAGE 3
1.0 GENERAL DESCRIPTION The BS 181 is designed to be a power supply in an ASL intercom system and can be used in portable as well as fixed applications. This makes the BS 181 very versatile and ideal for use in applications where standard microphone cable is available and ease of setup is of paramount importance. The intercom line power supply is fully protected and can drive at least 20 beltpacks operating at full power. 2.0 UNPACKING The shipping carton contains the parts listed below.
PAGE 4
.0 MAINS POWER The BS 181 may be connected to the mains power outlet to which other audio equipment is connected. The outlet should have a clean earth. Avoid using mains power outlets which also power dimmer controlled lighting equipment. The unit needs no voltage setting and accepts mains voltages from 90 - 240 V ac, 50/60 Hz.
PAGE 5
.0 FRONT PANEL CONTROLS & CONNECTOR 1 POWER ON/OFF switch Mains power push button for switching ON and OFF the power supply. 2 POWER LED This LED illuminates if line power is supplied by the internal power supply. 6.0 3 REAR PANEL CONTROLS & CONNECTORS Line connectors These XLR-3 type connectors are for connecting the user-stations, via standard microphone cable. Pin assignments: 1. 0 V / ground shield 2. +30 V power wire 3.
PAGE 6
7.0 CABLING For the BASIC Series Intercom system the interconnecting cables are of the shielded two-conductor microphone cable type and the intercom line connectors are of the XLR-3 type. Audio and Call signals are on XLR pin 3, DC power is on XLR pin 2. XLR pin 1 is connected to the shield of the cable which functions as the common return for audio and power. ¼ Since the audio signal is transferred in an unbalanced way, certain rules have to be obeyed when installing the cables of an intercom network.
PAGE 7
8.0 PARTY LINE, TECHNICAL CONCEPT ASL's BASIC Series offers a complete two way ('full duplex') communications system. Users of the system are connected via a 'party line'. Master stations (with built-in power supply), beltpacks and power supplies are interconnected via standard microphone cable. One wire is used as an audio line, one as a power line and the screen of the cable functions as earth/return. Current drive is used for signal transfer.