BS 216 DUAL CHANNEL MASTER STATION USER MANUAL Issue 2011 © ASL Intercom BV DESIGNED & MANUFACTURED BY: ASL Intercom B.V. Zonnebaan 42 3542 EG Utrecht The Netherlands Tel: +31 (0)30 2411901 Fax: +31 (0)30 2667373 Email: info@asl-inter.com Web: www.asl-inter.
CONTENT OF THIS USER MANUAL 1.0 SAFETY INSTRUCTIONS .......................................................................... 3 2.0 UNPACKING .............................................................................................. 3 3.0 WARRANTY ............................................................................................... 4 4.0 MECHANICAL INSTALLATION .................................................................. 4 5.0 MAINS POWER & SAFETY EARTH .......................
1.0 SAFETY INSTRUCTIONS Please always follow these instructions to help ensure against injury to yourself and/or damage to the system 1. Read all safety and operating instructions before you operate the apparatus. 2. Retain all safety and operating instructions for future reference. 3. Heed all warnings on the apparatus and in the safety and operating instructions and follow all installation and use instructions. 4. Follow all installation, operating and use instructions 5.
3.0 WARRANTY 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. 4.0 Faults arising from misuse, unauthorized modifications or accidents are not covered by this warranty. If the unit is faulty it should be sent in its original packing, to the supplier or your local ASL dealer, with shipping prepaid.
7.0 FRONT PANEL CONTROLS & CONNECTOR 1 POWER ON/OFF switch Mains power push button for switching ON and OFF the internal power supply. 2 MAINS POWER LED This LED illuminates if line power is supplied by the internal power supply. 3A BUZZER VOLUME trimmer This trimmer adjusts the volume of the buzzer. 3B BUZZER This buzzer indicates an incoming or outgoing call. It is activated by pushing a CALL button on this station or a CALL button on any other station for longer than two seconds.
8.0 REAR PANEL CONTROLS & CONNECTORS 10 MAINS Inlet IEC Mains connector 11 FUSE Holder The fuse protects the BS 216 against severe internal damage, in case of malfunction in the power section. Before replacing a fuse the mains cord must be disconnected from the mains outlet. 12 AUX INPUT connector This aux signal input is electronically balanced and accepts audio levels between –18dBu to +22dBu on line level, and –38dBu to +2dBu on mic level.
11.0 PARTY LINE, TECHNICAL CONCEPT User stations in an ASL intercom system are connected via one or several 'party lines'. A party line offers two way („full duplex‟) communication and consists of standard microphone (multi-pair) 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.
13.0 EARTHING CONCEPT 14.
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