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Summary of Contents for ASL INTERCOM VAR8-ACU Series
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Page 1: Installation Guide
VAR8-ACU and Variants Audio Control Unit Installation Guide ASL Document Ref.: U-0450-1430.doc Issue: 3 - complete, approved - Date: 18/08/10 Part Number: M0450_54... - Page 2 BN8 6JL - UK Tel: +44(0)1273 405411 Fax: +44(0)1273 405415 www.asl-electronics.co.uk All rights reserved. Information contained in this document is believed to be accurate, however no representation or warranty is given and Application Solutions Limited assumes no liability with respect to the accuracy of such information.
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Page 3: Table Of Contents
VAR8-ACU and Variants - Installation Guide Contents Installation ............................5 Installation Requirements ....................6 1.1.1 Cabling Requirements ....................6 Recommended Installation Procedure ................9 Connections ..........................11 Product Specification ........................14 Mechanical Dimensions ......................17 Safety and Precautions ....................... 18 Environmental......................... - Page 4 VAR8-ACU and Variants - Installation Guide Document Change History Issue Amendment Details Date First Draft – Internal release 22/08/07 01.01 Internal release - Training 23/10/07 First release 14/012/07 Issue: 02 complete, approved Page 4 of 22...
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Page 5: Installation
VAR8-ACU and Variants - Installation Guide Installation The following drawing shows the standard base model VAR8-ACU connectors as well the Interface Expansion Board connectors. Note that the Interface Expansion Board (EXP8) is an optional item. Section “2 Connections” on page describes the signals in each connector. -
Page 6: Installation Requirements
VAR8-ACU and Variants - Installation Guide Installation Requirements • The VAR8-ACU unit. • A 19-inch standard rack and wiring for power supply, signal monitoring, and RS232 and RS485 cabling as appropriate. • A small flat-bladed screwdriver. • Large pozidrive screwdriver. •... - Page 7 VAR8-ACU and Variants - Installation Guide Figure 2 Network Termination DIN RAIL VAR8 FIELD CABLING RACK CABLING SCREEN BUS1+ NETWORK BUS1- DOWNSTREAM BUS2+ BUS2- BUS3+ BUS3- 100 nF 100 V (Reference: RS 211-5340) BUS1+ NETWORK BUS1- UPSTREAM BUS2+ BUS2- BUS3+ BUS3- RACK CABLING FIELD CABLING...
- Page 8 VAR8-ACU and Variants - Installation Guide Figure 3 Audio I/O and Other Signal Termination FIELD WIRING RACK EARTH TERMINAL BONDED TO THE DIN RAIL SHORT CABLE TAIL SCREEN < 4 cm DIN RAIL SHORT CABLE TAIL < 3 cm SCREEN DIN RAIL ELECTRONICALLY BONDED RACK WIRING TO THE RACK...
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Page 9: Recommended Installation Procedure
VAR8-ACU and Variants - Installation Guide Recommended Installation Procedure Please read and observe the “Safety and Precautions” section on page of this manual. 1. Mount the VAR8-ACU into a 19-inch standard equipment rack. M6 PAN HEAD POZIDRIV SCREW M6 PLAIN WASHER M6 CAGE NUT DSP Audio Router power... - Page 10 VAR8-ACU and Variants - Installation Guide AUDIO MONITORING CAN BUS RS232 RS485 FAULT RELAY 3. Connect the rack and field cabling for the network interface. Wiring should be according to the diagram shown in Figure 2 on page for EMC compliance.
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Page 11: Connections
VAR8-ACU and Variants - Installation Guide Connections Network Interface Upstream Signal Description GND ISO. Connection for cable screen Data Bus+ (EIA RS485 38400 baud) Data Bus− (EIA RS485 38400 baud) BUS1+ Audio bus Loop 1 (+20 dBu Analogue audio) Audio bus Loop 1 BUS1−... - Page 12 VAR8-ACU and Variants - Installation Guide Audio Inputs 3 to 8 Signal Description Microphone Data+ (EIA RS485 19200 baud) Microphone Data− (EIA RS485 19200 baud) 0 V supply Balanced audio input +VE Max. Sensitivity: −20 dBu Level: 0 dBu Input Impedance: 10 kΩ IN−...
- Page 13 VAR8-ACU and Variants - Installation Guide CAN Bus Terminal block ‘CAN’ is not used by VAR8-ACU. RS232 Serial Port Signal Description 0 V Reference EIA RS232 Transmit data (9600 baud) EIA RS232 Receive data (9600 baud) EIA RS232 Request to Send EIA RS232 Clear to Send CTRL EIA RS232 Data Terminal Ready...
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Page 14: Product Specification
VAR8-ACU and Variants - Installation Guide Product Specification General Supply Voltage Range......................18 to 40 V DC Current Consumption ...........500 mA @ 24 V DC supply, backlight off and sounder off 610 mA @ 24 V DC supply, backlight on and sounder on Auxiliary DC supply for external equipment ............18 to 36 V DC @ 200 mA Fault Log............................ - Page 15 VAR8-ACU and Variants - Installation Guide Audio General THD Input to Output ......................<0.1 % @1 kHz Crosstalk..........................>70 dB @1 kHz Residual Noise ..........................<78 dBu (A) S/N Line ............................>70 dB (A) Frequency Response (Input to Output) ..............100 Hz to 20 kHz, –3 dB Audio Monitoring SPL from Loudspeaker (Sounder Mode)......
- Page 16 VAR8-ACU and Variants - Installation Guide Dimensions and Weight Dimensions (H x W x D) ......88 mm (2U) x 436 mm x 233 mm (excl. connectors and handles) Weight..............................4.5 kg Environmental – All Variants Temperature (Storage and Operating) ................−5 °C up to +50 °C Humidity Range ....................0 % to 93 % Non-condensing Safety and EMC EMC......
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Page 17: Mechanical Dimensions
VAR8-ACU and Variants - Installation Guide Mechanical Dimensions 263 mm 233 mm 222 mm 88 mm (2U) 222 mm 233 mm 263 mm Issue: 02 complete, approved Page 17 of 22... -
Page 18: Safety And Precautions
VAR8-ACU and Variants - Installation Guide Safety and Lithium Battery Precautions Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. Environmental Dispose of battery carefully to avoid environmental damage. The temperature and humidity ranges shown in dispose of battery in a fire. -
Page 19: Reference Documentation
VAR8-ACU and Variants - Installation Guide Reference Documentation Additional reference information may be found in the following documentation, available from the “Data Downloads” page of Application Solutions website: www.asl-electronics.co.uk Table 1 Reference Documents Ref. No Title Filename Ref Origin VAR8-ACU / Variants Product Description... - Page 20 VAR8-ACU and Variants - Installation Guide Page intentionally left blank. Issue: 02 complete, approved Page 20 of 22...
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Page 21: Service And Warranty
VAR8-ACU and Variants - Installation Guide Service and Warranty Name and Address of Authorised Distributor: This product carries a full warranty. For full details of warranty and service agreements, please contact the Authorised Distributor who supplied the product to you. Exclusions The warranty does NOT cover: Customer misuse, including incorrect installation.
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