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Summary of Contents for ASL INTERCOM VAR8-ACU
- Page 1 Product Description VAR8-ACU and Variants Rack Mount Audio Control Unit ASL Document Ref.: U-0450-1431.doc Issue: 02 complete, approved - Date: 14/12/07...
- Page 2 VAR8-ACU and Variants - Product Description This equipment is designed and manufactured to conform to the following EC standards: EN55103-1/E1, EN55103-2/E5, EN50121-4, EN50130-4, EN61000-6-3, ENV50204 Safety EN60065 Failure to use the equipment in the manner described in the product literature will invalidate the warranty.
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Page 3: Table Of Contents
VAR8-ACU and Variants - Product Description Contents Overview ..............................5 Router Functions ............................. 8 Audio Inputs..........................8 2.1.1 Mic/Line Inputs........................8 2.1.1.1 Paging Microphone Mode ................... 9 2.1.1.2 Zoneable Fire Microphone Mode ................9 2.1.1.3 Fire Microphone (ALL-CALL) Mode ................9 2.1.1.4... - Page 4 VAR8-ACU and Variants - Product Description Test Functions............................28 Mechanical Dimensions ........................29 Connector Signals and Pinout......................30 Network Interface ........................31 Audio Inputs..........................32 Audio Outputs ........................... 33 Digital Inputs (Control Contacts)....................34 RS485 Serial and CAN Bus...................... 35 RS232 Serial..........................
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Page 5: Overview
VAR8-ACU and Variants - Product Description Overview The VAR8-ACU is a rack mount version of the Wall Mount Intellevac ACU Audio Control Unit. The Audio Control Unit is the central point for controlling the routing of audio in Intellevac Networks, supporting Rack Mount VAR8, VAR12 and VAR20 Routers , and Intellevac Distributed Amplifier Units (DAU). - Page 6 VAR8-ACU and Variants - Product Description Figure 1 VAR8-ACU and Variants – Diagram VAR8-ACU BASE UNIT FAILSAFE PTT SIGNAL AUDIO INPUT-1 LINE DRIVER INPUT-2 INPUT-3 INPUT-4 INPUT-5 INPUT-6 AUDIO ROUTING INPUT-7 MATRIX INPUT-8 MUSIC MESSAGE-1 MESSAGE-2 INTELLEVAC MESSAGE-3 DOWNSTREAM NETWORK...
- Page 7 VAR8-ACU and Variants - Product Description Figure 2 VAR8-ACU Application Example V400 AMPLIFIER MAINFRAME SPEAKER CIRCUITS OUTPUT 1 *) B outputs available on EXP8 Interface Expansion Board CENTRAL OUTPUT 8 FIRE ALARM ALERT PANEL EVACUATE VAR8 VAR8-ACU DATA VAR8 AUDIO CONTROL...
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Page 8: Router Functions
VAR8-ACU and Variants - Product Description Router Functions Audio Inputs The Router has eight electronically balanced line level inputs. Each of these inputs features a serial communications interface, which allows any ASL microphones to be connected. The first two of these inputs can also be used for ASL emergency or Fireman’s Microphones in Voice Alarm systems, this is because they have the facility for an analogue bypass mode in the event of processor failure/mis-operation, as required by BS5839 Pt 8. -
Page 9: Paging Microphone Mode
VAR8-ACU and Variants - Product Description 2.1.1.1 Paging Microphone Mode It is possible to set any of the Mic/Line inputs for Paging Microphone operation. When configured for this mode of operation, any ASL Paging Microphone can be supported. For example: DMS5, DMS10, DMS20. -
Page 10: Single Button Microphone Mode
2.1.1.6 Remote I/O Unit(s) Mode Any of the VAR8-ACU Mic/Line inputs can also support a Remote I/O Unit (BMB01). The Remote I/O Unit is connected to the Mic/Line serial interface and support the same functionalities as described in Section “2.6.3.2 Remote I/O Unit Functionality Summary”. -
Page 11: Mute Input
VAR8-ACU and Variants - Product Description 2.1.4 Mute Input The Router provides a special ‘Mute’ Input, which mutes even fire microphones if needed. For this purpose its priority is set to ‘0’ by default. However, the mute input is configurable, so it is possible to mute just DVAs, and/or any other inputs. -
Page 12: Fades And Chimes
VAR8-ACU and Variants - Product Description Fades and Chimes 2.4.1 Fades It is possible to specify a fade up and fade down time for each Mic/Line or Music input source. This is typically used on background music where a slow fade-up, in particular, is desirable. -
Page 13: Surveillance Tone Detection And Generation
VAR8-ACU and Variants - Product Description Surveillance Tone Detection and Generation 2.5.1 Detection The Router is able to detect the presence of a low frequency 20 Hz surveillance tone on the Mic/Line inputs. ASL Microphones produce this tone as standard and the network audio busses also carry this signal. -
Page 14: Contacts
Opto-Isolated Interface Contacts 1 to 10 (or 1 to 20 when the VAR8-ACU is fitted with the EXP8 Interface Expansion Board) use an opto-isolated interface. The contact is asserted when the opto-isolator is turned on. These may be used to interface a simple closure, or as a Sounder Circuit Interface that is suitable for connecting the Fire Alarm to the Router for triggering DVA messages. -
Page 15: Contact Functions
OPTO OFF monitors the current flowing in the End of Line Resistor. Reversing the polarity activates the input. MONITORING VAR8-ACU base unit contacts 1 to 10 can have ROUTER FIRE internally fitted End of Line Resistors. However the CONTACT INPUT... -
Page 16: Routing: Non-Latching, Latent Routes
VAR8-ACU and Variants - Product Description DVAs can be assigned Priorities as described in Section “2.3 Audio Input Priority”. Once triggered, DVAs may be overridden by any higher priority DVAs, or other inputs that are routed to the same output. -
Page 17: Permanent Routes
1 km long, in order to interface to remote equipment. 2.6.3.1 RS485 Connections The VAR8-ACU provides a single RS485 bus. Up to 6 Remote I/O Units may be connected in total, each with a unique address, which is set up using an internal rotary switch. Figure 3... -
Page 18: Remote I/O Unit Functionality Summary
VAR8-ACU and Variants - Product Description 2.6.3.2 Remote I/O Unit Functionality Summary Each BMB01 Remote I/O Unit provides the following I/O capability when connected to a VAR8-ACU. Table 3 BMB01 Inputs and Outputs Type Quantity Functions Analogue Input non-isolated Fault Input... -
Page 19: Network
VAR8-ACU and Variants - Product Description Network Network Operation The Intellevac Network enables a number of physically distributed Slave Units to be controlled by a master Audio Control Unit (ACU). The units in the Intellevac Network are interconnected by a loop cable, which carries a data ring for control and a triple audio ring. -
Page 20: Network Topology
VAR8-ACU and Variants - Product Description The audio bus has a 30 Hz surveillance signal superimposed on the normal VA audio. This surveillance tone is monitored at each Slave Unit, and enables the Slave Units to report fault in the network. - Page 21 VAR8-ACU and Variants - Product Description Figure 4 Intellevac 8x8 ACU Network Topology UPSTREAM UPSTREAM UPSTREAM Network O/P 20 Network O/P 68 Local VAR8 4x4 DAU VAR8 Network O/P 19 Network O/P 101 Slave-ID Network O/P 18 Network O/P 48...
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Page 22: Control And Indicators
VAR8-ACU and Variants - Product Description Control and Indicators Figure 5 LCD Display and User Interface Issue: 02 complete, approved Page 22 of 44... -
Page 23: Lcd Backlight Control
AUDIO MON Selects Audio Monitor sub-menu on the LCD display. Tests all indicators on the VAR8-ACU. The sounder is also tested. The display shows ‘LAMP + SOUNDER TEST’ and the menu locks LAMP TEST during this time. -
Page 24: Fault Monitoring
‘Faults’ menu. In order to time-stamp the fault reports the VAR8-ACU features a Real Time Clock (RTC). The unit is fitted with an internal Lithium battery to keep this clock running when the power from the Router is turned off. -
Page 25: Viewing Active Faults From The Audio Control Unit
VAR8-ACU and Variants - Product Description Viewing Active Faults from the Audio Control Unit The Audio Control Unit alternates between displaying its own active fault with the current date and time. In the event of multiple faults the display shows each fault in sequence then the current date and time. -
Page 26: Slave Unit's Faults
CLEARED’ fault is logged. A manual fault log clearing function is also provided. It is possible to view a log of all faults logged by the VAR8-ACU. Multiple faults can be examined by scrolling through the list by means of the front panel keys or rotary encoder. -
Page 27: Fault Relay
VAR8-ACU and Variants - Product Description Fault Relay The unit features a fault relay, for indicating system Figure 6 Fault Relay Wiring health to external equipment. The relay is normally energised to indicate system health, and de- energised in the event of system fault. If power is RELAY NC removed then a fault is indicated. -
Page 28: Test Functions
The VAR8-ACU units can initiate a number of unit system tests, including: • Sounder and lamp test: The unit features the LAMP TEST key. Pressing this key will cause all indicators on the VAR8-ACU to operate. The built-in sounder is also tested. •... -
Page 29: Mechanical Dimensions
VAR8-ACU and Variants - Product Description Mechanical Dimensions 263 mm 233 mm 222 mm 88 mm (2U) 222 mm 233 mm 263 mm Issue: 02 complete, approved Page 29 of 44... -
Page 30: Connector Signals And Pinout
VAR8-ACU and Variants - Product Description Connector Signals and Pinout 1 FAULT (INPUT 2) 2 FAULT 3 FAULT SCRN (INPUT 1) BUS1+ BUS1- BUS2+ BUS2- BUS3+ BUS3- DOWN / UP V+NB BUS1+ BUS1- BUS2+ BUS2- BUS3+ OUT8-B+ BUS3- OUT8-B- 1 FAULT... -
Page 31: Network Interface
VAR8-ACU and Variants - Product Description Network Interface Upstream and Downstream Network Interface • 9 way terminal block (3.8 mm). • Upstream and Downstream network interface UPSTREAM DOWNSTREAM connections, comprising a RS485 control bus and a 3-channel audio bus. The Audio Bus connections are outputs at the ACU Audio Control Unit and inputs at the Slave Units. -
Page 32: Audio Inputs
VAR8-ACU and Variants - Product Description Audio Inputs Inputs 1 and 2 • 2x10 way double stack terminal block (5 mm). VAR8 • Lower terminal block: Input 1. • Upper terminal block: Input 2. • Software configurable inputs with a hardware failsafe mode for emergency operation in the event of processor failure (BS5839 requirement). -
Page 33: Audio Outputs
VAR8-ACU and Variants - Product Description Inputs 7 to 8 VAR8 • 7 way terminal block (5 mm). • Can be used for Paging Microphone, Single Button Microphone, or Miscellaneous Input. Signal Description Microphone Data+ (EIA RS485 19200 baud) Microphone Data− (EIA RS485 19200 baud) -
Page 34: Digital Inputs (Control Contacts)
VAR8-ACU and Variants - Product Description Digital Inputs (Control Contacts) Contacts 1 to 10 VAR8 • 2x10 way double stack terminal block (5 mm). • Opto-isolated interface with built-in resistor to suit voltages of +12 to +40 V. • The contact is asserted when the opto-isolator is turned on. -
Page 35: Rs485 Serial And Can Bus
VAR8-ACU and Variants - Product Description RS485 Serial and CAN Bus RS485 VAR8 • 2x3 way double stack terminal block (5 mm). • Lower terminal block. • Serial control connection for interfacing with Remote I/O units (ASL product: BMB01). CAN Bus •... -
Page 36: Fault Relay, Audio Monitoring Bus, And Auxiliary Supply
VAR8-ACU and Variants - Product Description Fault Relay, Audio Monitoring Bus, and Auxiliary Supply Fault Relay • 2x3 way double stack terminal block (5 mm). VAR8 • Lower terminal block. The relay NO contact closes to COM to indicate health. -
Page 37: Product Specification
VAR8-ACU and Variants - Product Description 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... - Page 38 Up to 6 Remote I/O Units (BMB01) RS232 Port ..............................1 For mutually exclusive use by Host PC for configuration, Intellevac Network VAR8-ACU Variants VAR8-ACU ..............Base Unit, standard 8x8 Audio Control Unit Router EXP8........................Interface Expansion Board Factory fit option ordered with VAR8-ACU Network Network Audio Channels ........................
- Page 39 VAR8-ACU and Variants - Product Description 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...
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Page 40: Reference Documentation
Table 4 Reference Documents Ref. No Title Filename Ref Origin VAR8-ACU / Variants Product Manual (this document) U-0450-1431 VAR8-ACU / Variants Installation Guide U-0450-1430 VAR8-ACU / Variants Commissioning and Operation Guide quoting Refer to ASL the SW version of... -
Page 41: Abbreviations
VAR8-ACU and Variants - Product Description Abbreviations Ambient Noise Sensor Application Solutions Limited BMB01 Remote I/O Expander British Standard Controller Area Network Digital Microphone Station Digital Signal Processing Digital Voice Announcers (Messages) EEPROM Electrically Erasable Programmable Read-Only Memory EFI01 European Fire Alarm Interface... -
Page 42: Index
VAR8-ACU and Variants - Product Description Index audio input latching mode............. 10 balanced............8 latent routes ............16 single button microphone........10 lcd display ............ 23, 24 unbalanced............8 unused ............10 comms............23 audio output ............11 fault............. 23, 24, 25 audio ring ............19 power.............. -
Page 43: Service And Warranty
VAR8-ACU and Variants - Product Description 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. - Page 44 Application Solutions Limited www.asl-electronics.co.uk...
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