Current Thinking VoCALL Compact Manual

VoCALL Compact
5 Line Fire Telephone &
Disabled Refuge System
Installation and Maintenance Manual
Revision 1 − August 2007

VoCALL Compact Installation & Maintenance Manual
Introduction
An EVCS is a fixed, secure, bi-directional, full duplex voice communication system to assist fire fighters
in an emergency in high rise buildings or large sites where Radio communication may not work, and
covers the operation of both fire telephones and disabled refuge systems.
The VoCALL Compact Emergency Voice Communications System (EVCS) is designed to fully comply
with BS5839-Part 9:2003 (abb. Pt9) for use as a Fire Telephone system, Disabled Refuge Call system
or as a combined system when both Fire Telephones and Disabled Refuge Points are required.
Suitability
Fire telephone systems are recommended for all public buildings and multi story buildings over four
floors by BS5588.
Disabled Refuge systems are required in buildings where the public or disabled staff gain access to any
floor other than the ground floor using lifts.
Product Overview
A VoCALL EVCS comprises of two functional blocks, the master handset and outstations, (type A, type
B or Jack points), with the quantities of these basic units being adjusted to suit the application.
The VoCALL Compact EVCS has been designed on a star topology; in the most cases this will reduce
the cable requirements from all ring-based systems. The topology consists of spurs formed from 1 off
two core core 1mm CSA cables (soft skin enhanced up to 500m per leg, MICC 200m per leg) to each
outstation.
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VoCALL Compact Installation & Maintenance Manual
Important Safety Information
This Equipment must only be installed and maintained by suitably skilled and competent
person.
This Equipment is defined as Class 1 in EN60065 (Low Voltage Directive) and must be
EARTHED.
CAUTION INDOOR USE ONLY
WARNING SHOCK HAZARD-
ISOLATE BEFORE OPENING
WARNING
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK, DO NOT EXPOSE THIS
UNIT TO RAIN OR MOISTURE
WARNING THIS UNIT MUST BE EARTHED
WARNING NO USER SERVICABLE PARTS
Each exchange unit requires a 3A spur, returning to a breaker clearly marked EVCS DO NOT
TURN OFF. If the units are distributed around a site it is essential all units are on the same
mains phase, as they are classified TEN 230V, powering from different phases can mean a
440V potential can be present in a unit during a major fault incident.
Anti-static handling guidelines
Make sure that electro-static handling precautions are taken immediately before handling
PCBs and other static sensitive components
Before handling any static-sensitive items, operators should get rid of any electrostatic charge
by touching a sound safety earth, such as a radiator. Always handle PCBs by their sides and
avoid touching any components. PCBs should be stored in a clean, dry place that is free from
vibration, dust and excessive heat.
Storing the PCBs in a suitable cardboard box will also guard them against mechanical
damage.
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VoCALL Compact Installation & Maintenance Manual
Unpacking the Unit
Remove the VoCALL Compact master from its packing, and check the contents against the
following list:
1. VoCALL Compact EVCS control Unit.
2. Installation & maintenance manual (this document)
3. Unity User Guide & logbook.
4. Accessory pack with the following contents:-
a. Spare Mains Fuse.
b. 2.5mm AF Alan Key.
c. 5 off 10K 0.6W end of line Resistors (fitted to line sockets).
d. Crimped Battery Link Lead.
Using the HEX key supplied Open the right hand front cover.
Verify the following items are present:
1. 5 off outstation Line connectors
2. 1 off 2 way fault connector
3. 1 off 2 way In Use Connector
4. 1 off 2 way Access Connector
If there are any Items missing please contact your supplier or Current Thinking Ltd, quoting
the unit serial number, and the name on the packing list enclosed so we can rectify the
situation.
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VoCALL Compact Installation & Maintenance Manual
Preparation
Remove the front door plate containing the circuit board by unscrewing the door hinge, this
has a connection to the base PCB, which needs to be removed, Exercise static precautions to
prevent damage to the electronics, store the front panel assembly safely until the master
handset is mounted and cables have been attached.
Before mounting the unit on the wall it is advisable to remove the cable knockouts. Decide
how the wiring will be brought into the panel and remove the required knockouts for cable
entry. If a knockout is removed fill the hole with a good quality cable gland.
On the bottom face a single knockout is for the incoming mains, mains SHOULD NOT enter
the box by any other hole. If additional holes are required, then the can be drilled as shown
below, taking care not to obscure the battery or PCB locations.
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VoCALL Compact Installation & Maintenance Manual
Unused knockouts must be left unopened to comply with the LVD, accidentally knocked out
holes should be blanked off. This work must be carried out prior to the re-installation of circuit
boards.
Mounting VoCALL Compact
Before mounting the Master Unit on the wall it is advisable to remove the cable knockouts.
Decide the best cable routes from the drawing below:
The Master handset weighs 6Kgs with batteries, so care should be taken to securely mount
the unit on stud walling.
Connecting VoCALL Compact
To comply with EMC (Electro Magnetic Compatibility) regulations and to reduce the risk of electrical
interference in the system wiring, we recommend the use of fire-resistant screened cables throughout
the installation.
All wiring should come into the enclosure via the knockouts provided and be fixed tidily to the relevant
terminals.
Note that correct cable glanding is essential and due regard should be paid to any system specifications
which demand a certain cable type (providing it meets the appropriate national wiring regulations).
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VoCALL Compact Installation & Maintenance Manual
PLANNING THE WIRING
All System wiring should be installed to meet the appropriate parts of BS5839-9 (2003) and BS 7671
(Wiring Regulations). Other national standards of installation should be adhered to where applicable.
Do not test wiring with an insulation tester (Megger) with any equipment or speakers connected, as the
500 Volt test voltage will destroy these devices totally.
You must observe local wiring regulations. Do not run SELV and LV cables in the same enclosure
without adequate insulation between them.
Mains Connection
>3mm
3A
Main
Distribution
Board
>0.75mm2<2.5mm2
UNITY
VoCALL
Compact
Each VoCALL Compact requires a 3A spur, returning to a breaker clearly marked “EVCS DO NOT
TURN OFF”. If the units are distributed around a site it is essential all units are on the same mains
phase, as they are classified TEN 230V, powering from different phases can mean a 440V potential can
be present in a unit during a major fault incident.
Batteries
The VoCALL Compact requires one number 12V 3.2AH sealed lead acid batteries to provide backup
power in the event of mains failure as defined in BS5839pt8 for 24 hours standby and 30 minutes
operation.
For 72hour standby and 1 hour operation one number 12V 17AH battery is required, these will need to
be fitted in an external battery enclosure, the monitored charger in the VoCALL Compact is capable of
charging and monitoring these batteries.
Safety Information:
Sealed Lead acid batteries contain sulphuric acid which can cause burns if
exposed to the skin, the low internal resistance of these batteries means large
currents will flow if they are accidentally short circuited, causing burns and a risk
of fire- exercise caution when handling batteries.
Power Up Procedure:
Always apply mains power before connecting batteries, do not commission
VoCALL Compact on batteries, as the high inrush current required by the power
supply may rupture the battery fuse.
Always connect the Positive (Red +) terminal first.
Power Down Procedure
Disconnect the batteries before removing the mains power; always remove the
negative (Black – terminal) first.
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VoCALL Compact Installation & Maintenance Manual
Outstation Wiring:
VoCALL Compact requires no programming to determine the outstation configuration;
Three types of handset are allowed on the system, type A (fixed phone) type B (hands-free refuge
points) and Jack plates.
For type A and B phones the EOL 10k resistor is simply removed when the outstation is connected, for
Jack points the EOL resistor is moved to the OUT of the last Jack on the system.
Cable Type:
All cables on the VoCALL compact system should be Enhanced in order to comply with
BS5839:pt9:2003, The unit will work with MICC to 200m per line and Soft Skin cables to 500m per line.
Handsets(type A):
Line + connector on exchange to Red Phone lead
Line – connection on exchange to Green Phone Lead
Hands Free Refuge Point (type B):
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VoCALL Compact Installation & Maintenance Manual
Auxiliary Connections
The compact has three auxiliary connections as shown below:
In Use is a normally open volt free relay (30V DC 1A) connection which closes when any outstation is
operated
Fault is a normally closed volt free relay (30V DC 1A) which OPENS on any fault, including loss of
power.
Enable is a normally CLOSED input and is required to operate the system (if Jumper J1 is in place then
no connection is required at the terminals.
2ND Fix
Replace the front panel door plate by attaching the ribbon cable lead and fixing with the door Hinges.
Attach all plugs ensuring they fit squarely into the connectors.
Do not connect battery until the Master has been powered up on mains.
Powering UP
Carefully check the outstation wiring then apply AC power to each VoCALL Compact master unit- DO
NOT commission on batteries as the power supply has a large reservoir capacitor which may rupture
the battery fuse if the AC is not present when powering up the system. Once the system is powered, the
battery leads can be attached to the battery.
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VoCALL Compact Installation & Maintenance Manual
Operation
All conversations on the VoCALL Compact system are under the command of the control handset,
Pt9 envisages the majority of calls to be made by lifting the handset of an outstation (type A) or pressing
the call button (type B).
Receiving a Call:
Lift the receiver; press the Zone key where the green LED is flashing. When connected the green LED
will go steady and the outstation will be connected to the handset.
To end Hang-up receiver or press the Zone key again to place the outstation on HOLD (the zone led will
flash slowly when held).
Making a Call:
Lift the receiver; press the Zone key for the required outstation, the green LED on the zone key will
flash. When the outstation answers the call the green zone LED will go steady and the handset will
connect to the called outstation.
To end the call, Hang-up receiver or press the Zone key again to place the outstation on HOLD (the
zone led will flash slowly when held).
Conference Call:
Up-to five calls can be conference called, by answering the calls or dialling the calls as described above
the master handset must be involved in the call and only one conference group is allowed.
Accepting Faults:
Note the fault in the log book, then Press the Mute Buzzer key this will silence the “waterfall” tone, while
the fault exists the fault buzzer will “beep” once every 15 seconds until the fault is rectified. The buzzer
will resound on each new fault.
Panel Test:
Press and hold the Mute Buzzer key for 5 seconds, the fault Buzzer will sound and all status LEDs will
Light.
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