C-Tec FiTT EVC Line Tester C-Tec FiTT EVC Line TesterThe FiTT line tester is an easy to use test set which allows you to test the wiring for a SigTEL Type A fire telephone outstation andor a SigTEL Type B disabled refuge outstation prior to its connection to an appropriate SigTEL exchange unit.The FiTT is supplied with a non-rechargeable 9 volt PP3 alkaline battery allowing approximately 28 hours use and all the test cables and connectors you need. Always replace the battery with a non-rechargeable 9 volt PP3 alkaline battery. Do not use a rechargeable battery. GBP 329.02 1
C-Tec CFP Relay Output Card Reset Fault Aux amp Remote Relay Outputs CFP762 C-Tec CFP Relay Output Card Reset Fault Aux Remote Relay Outputs CFP762An optional system expansion device for use withCFP Standard 2-8 Zone Fire PanelsorCFP AlarmSense 2-8 Zone Fire Panels.Key FeaturesProvides four panel-controlled volt free relay outputs reset fault aux. fire and remote.PCB mounts inside the CFP fire panel.Reset relay is active during the panels reset cycle.Fault relay is active in any fault condition. This relay is failsafe and normally energised - if power is removed from the panel the relay will changeover to produce a fault signal.Aux. fire relay is active in an alarm condition provided all relevant delays have expired.Remote relay is active during any Alarm Condition provided all relevant delays have expired.Outputs are NOT designed to switch mains voltages. GBP 46.63 1
C-Tec Output Expansion Relay Board EP212 C-Tec Output Expansion Relay Board EP212The EP212 is an optional system expansion device for use withthe EP203 three zone automatic extinguisher panel. Mounts inside the EP203panel to provide five volt free relay contacts reset mode discharged hold and abort.Key FeaturesReset relay switchesduring the panels reset cycleModerelay switcheswhen the extinguishant systems mode is changed to manualDischarged relay switcheswhen a released flow switch input e.g. from theextinguishant pipework is received toindicate the extinguishant has been releasedHoldrelay switcheswhen a hold input isreceived at the panel. If the panel is in 2nd stage alarm i.e. it is in automatic mode and detection circuits are activated or it is in either automaticmanual mode and a manual release input is operated the extinguishant release sequence is haltedAbortrelay switcheswhen an abort input isreceived at the paneltocancel the extinguishant release sequence GBP 108.35 1
C-Tec CA734 CA Mini Input Output Module C-Tec CA734 CA Mini Input Output Module The C-Tec CA734 is a CA Mini Input Output Module using theC-Tec CAST analogue addressable protocol.CAST is the worlds most-advanced distributedintelligence fire alarm system protocol. Conceived designed and realised byC-TEC as part of a five-year multi-million pound project it involved thecreation of a powerful proprietary communication protocol C-TEC AddressableSystem Technology CAST and multiple control panels field devices.Key FeaturesLPCB certified to EN54-17 18 and Kiwa Teleficationcertified to EN54-13Includes a switch monitor signal relay and onboard loopisolator7mA typical alarm current 1mA typical quiescent current 22-40V DCFour plastic tabs for surface or panel mountingIncludes a 1A 30V DC volt-free changeover relay. Can alsoswitch 0.3A 125V ACOffers Switch Ve Ve LED V Ve and changeover relayconnectionsFuture header pin offers expansion opportunities forperipheral IO devices GBP 38.72 1
C-Tec 24V 3A EN54-4 Switch Mode PSU BF562-3 C-Tec 24V 3A EN54-4 Switch Mode PSU BF562-3Ideal for powering beam detectors auto-dial communicators aspirating smoke detectors auto-open vent systems auxiliary sounder systems or any other device performing a mandatory function of a fire alarm system.Key FeaturesVDS certified to EN54-4 1997A22006.Ideal for poweringbeam detectors auto-dial communicators aspirating smoke detectors auto-open vent systems auxiliary sounder systems or any other device performing a mandatory function of a fire alarm system.Deep discharge battery protection and EN54 compliant reporting of battery impedance faults.Includes a single-pole volt-free changeover relay that switches for any fault condition.Three LED indicators - supply present general fault and auxiliary fault for optional connection to third-party equipment.Link selectable battery charging capacity.Environmentally-friendly charging circuit - dissipates just 0.35W compared to the industry norm of 2.55W.Supplied in a tough durable metal box.Optional caged and PCB-only versions available with exactly the same electronics order code BF362-3E and BF362-3C respectively. GBP 163.93 1
C-Tec 24V 1.5A 5 Series Encased Power Supply PCB ONLY BF560-24E C-Tec 24V 1.5A 5 Series Encased Power Supply PCB ONLY BF560-24EThe BF560-24E can be optionally customised to suit your exact requirements using a BF423 configurator and PC. Configurable parameters includeFloat voltage temperature compensation Battery charge rate mA Battery impedance Configurable InputOutputsettings.Key FeaturesApowerful switch modedigital hybrid PSU that can be customised to suit your exact requirementsPlasticcoveron PSU PCB guards against touching live parts to VDE 0100-410Includes the same electronics as our BF560-24LPCBcertified EN54-4A2 boxed 24V 1.5A PSUMetal base platefacilitatesstraightforwardmountinginside third-party OEMenclosuresIncludes a single-pole volt-free changeover relay that switches for any fault conditionIncludes afault type hazardous voltages present LEDTwo selectable battery charge currentsBattery fault impedance limits can be optimised to suit load current helps extend battery lifeMains fail simulation modeImproved on-board temperature sensor with optional remote sensorElectronic functions comply with EN50131-6 grades 1-4 for security applicationsOptional PCB-only versionwithout a metal base plate available GBP 78.17 1
C-Tec 24V 3A 5 Series Encased Power Supply PCB ONLY BF562-3E C-Tec 24V 3A 5 Series Encased Power Supply PCB ONLY BF562-3EThe BF562-3E can be optionally customised to suit your exact requirements using a BF423 configurator and PC. Configurable parameters includeFloat voltage temperature compensation Battery charge rate mA Battery impedance Configurable InputOutputsettings.Key FeaturesApowerful switch modedigital hybrid PSU that can be customised to suit your exact requirements.Plasticcoveron PSU PCB guards against touching live parts to VDE 0100-410.Includes the same electronics as our BF562-3E LPCBcertified EN54-4A2 boxed 24V 3A PSU.Metal base platefacilitatesstraightforwardmountinginside third-party OEMenclosures.Includes a single-pole volt-free changeover relay that switches for any fault condition.Includes afault type hazardous voltages present LED.Two selectable battery charge currents.Battery fault impedance limits can be optimised to suit load current helps extend battery life.Mains fail simulation mode.Improved on-board temperature sensor with optional remote sensor.Electronic functions comply with EN50131-6 grades 1-4 for security applications.Optional PCB-only versionwithout a metal base plate available. GBP 93.82 1
C-Tec 24V 5A 5 Series Encased Power Supply PCB ONLY BF562-5E C-Tec 24V 5A 5 Series Encased Power Supply PCB ONLY BF562-5EThe BF562-5E can be optionally customised to suit your exact requirements using a BF423 configurator and PC. Configurable parameters includeFloat voltage temperature compensation Battery charge rate mA Battery impedance Configurable InputOutputsettings.Key FeaturesApowerful switch modedigital hybrid PSU that can be customised to suit your exact requirements.Plasticcoveron PSU PCB guards against touching live parts to VDE 0100-410.Includes the same electronics as our BF562-5E LPCBcertified EN54-4A2 boxed 24V 5A PSU.Metal base platefacilitatesstraightforwardmountinginside third-party OEMenclosures.Includes a single-pole volt-free changeover relay that switches for any fault condition.Includes afault type hazardous voltages present LED.Two selectable battery charge currents.Battery fault impedance limits can be optimised to suit load current helps extend battery life.Mains fail simulation mode.Improved on-board temperature sensor with optional remote sensor.Electronic functions comply with EN50131-6 grades 1-4 for security applications.Optional PCB-only versionwithout a metal base plate available. GBP 114.67 1
C-Tec CFP763 Relay Output Card as per CFP762 8 outputs per zone relays C-Tec CFP Relay Output Card as per CFP762 8 outputs per zone relays CFP763An optional system expansion device for use withCFP Standard 2-8 Zone Fire PanelsorCFP AlarmSense 2-8 Zone Fire Panels.Key FeaturesProvides four panel-controlled volt free relay outputs reset fault aux. fire and remote and eight output per zone relays.PCB mounts inside the CFP fire panel.Reset relay is active during the panels reset cycle.Fault relay is active in any fault condition. This relay is failsafe and normally energised - if power is removed from the panel the relay will changeover to produce a fault signal.Aux. fire relay is active in an alarm condition provided all relevant delays have expired.Remote relay is active during any Alarm Condition provided all relevant delays have expired.Output per zone relays will changeover when the corresponding zone is in alarm subject to certain conditions - for full details refer to the instructions downloadable below.Outputs are NOT designed to switch mains voltages. GBP 67.02 1
C-Tec CA730 CA Input Output Module C-Tec CA730 CA Input Output ModuleThe C-Tec CA730 is an addressable input output interfacemodule using the C-Tec CAST analogue addressable protocol.CAST is the worlds most-advanced distributedintelligence fire alarm system protocol. Conceived designed and realised byC-TEC as part of a five-year multi-million pound project it involved thecreation of a powerful proprietary communication protocol C-TEC AddressableSystem Technology CAST and multiple control panels field devices.Key FeaturesLPCB certified to EN54-17 18 and Kiwa Teleficationcertified to EN54-13Incorporates the functions of a switch monitor zone monitorand output unitUp to 20 conventional detectors 10 MCPsAny normally open switch with an EOL resistor fittedA simple normally open or closed switch non-faultmonitoredOnboard short-circuit loop isolator5.5mA typical alarm current 1.3mA typical quiescentcurrent 22-40V DCIndicators for Loop polling input faults and relay statusCan switch 1A30V DC or 0.3A125V ACIncludes volt free changeover contacts that can be used totrigger rollershutter doors gas shut-off valves smoke vents etcMountable on a C-TEC NCP-26 surface box or a standard UK25mm double gang back box not supplied GBP 51.37 1
C-Tec CA731 CA Mains Switching Input Output Module C-Tec CA731 CA Mains Switching Input Output Module The C-Tec CA731 is a mains switching input output interfacemodule using the C-Tec CAST analogue addressable protocol.CAST is the worlds most-advanced distributedintelligence fire alarm system protocol. Conceived designed and realised byC-TEC as part of a five-year multi-million pound project it involved thecreation of a powerful proprietary communication protocol C-TEC AddressableSystem Technology CAST and multiple control panels field devices.Key FeaturesLPCB certified to EN54-17 18 and Kiwa Teleficationcertified to EN54-13A mains-switching version of our CA730 input output moduleCapable of switching 5A 230 V AC or 5A 30V DCIncorporates the functions of a switch monitor zone monitorand output unitUp to 20 conventional detectors and 10 MCPsAny normally open switch with an EOL resistor fittedA simple normally open or closed switch non-faultmonitoredOnboard short-circuit loop isolator6mA typical alarm current 1.7mA typical quiescent current 22-40V DCIndicators for Loop polling input faults and relay statusIncludes volt free changeover contacts that can be used totrigger rollershutter doors gas shut-off valves smoke vents etcMountable on a C-TEC NCP-26 surface box or a standard UK25mm double gang back box not supplied GBP 60.32 1
C-Tec QT603 Quantec Network Splitter C-Tec QT603 Quantec Network SplitterQuantec utilises a unique data protocol that works down two wires andamaximum of 255 addressable devices can be connected to a Quantec Controller dependent on network topology.Addressable devices require 2 network connections. Slave devices such as slave ceiling pullsandslave overdoor lights connect to Quantec via a master call point master ceiling receiver monitoring point or universal programming device using 2 3 or 4 cores of stranded security cable.Wiring must bemade in a Spine and Limb configuration using one or more QT603 network splitters. This allowsthe use of ordinary unscreened cable which simplifies installation fault-finding and commissioning.Key FeaturesAn essential wiringinstallation aid for C-TECsQuantec Addressable Call System.Helps protect against open and short circuit faults and reduces the risk of volt drop.Includes one input and one output connection for Quantecs Spine wiring typically 1.5-2.5mm TE and sixfused 400mA limb connections for the wiring of individual circuits containing Quantecs fielddevices typically 4 core stranded security cable.At least one QT603 is required perQuantec system the more you use the easier it will beto program and fault-find.Install one QT603 per corridor junction locate at the end of the corridor nearest to the Quantec Controller.Ifthe corridor is longer than 50m install the splitter in the centre of the corridor to reduce wiring runs.Mounts on a standard 25mm UK double gang back box.Power and Fault indicators.Max.60 addressable devices per QT603. GBP 29.40 1
C-Tec NC832KE Conventional 30 Zone Surface Emergency Master Panel C-Tec NC832KE Conventional 30 Zone Surface Emergency Master PanelNC812KE NC822KE and NC832KE indicator panels are fully compatible with all 800 Series call points ceiling pulls infrared ceiling receivers monitoring points overdoor lights and remote sounders.Depending on the devices wired to it Standard and Emergency calls can be indicated via its buzzer and zonal LEDs. An optional Mute button is also provided to allow the user to silence standard calls.Standard Calls when triggered by a calling device the indicator panels internal buzzer sounds continuously and the relevant zone indicators illuminate steady.Pressing the Indicator Panels Mute Button if fitted silences the Panels internal buzzer. However if a new call standard or emergency is triggered anywhere on the system the buzzer will resound.Emergency Calls when triggered by a calling device theIndicator Panels internal buzzer pulses and the relevant zone indicators flash. This level of call takes priority over standard calls and cannot be muted at the Panel. An emergency call can only be reset at the device from which it was triggered or via a reset point wired on the same zone.Key FeaturesFully compatible with C-TECs entire range of 800 Series Call System componentsCapable of indicating standard constant tone and emergency intermittent tone calls10 20 or 30 zonal alarm LEDs dependent on model purchased see below for parts listingOptional mute button2 volt-free relay contactsSurface mountingConnections for optional Repeater panels and sounders to increase call indication levels GBP 466.69 1
C-Tec NC910S Conventional 10 Zone Surface Master Call Controller C-Tec NC910S Conventional 10 Zone Surface Master Call ControllerThe NC910S Call Controller is compatible with all 800 Series call points ceiling pulls infrared ceiling receivers monitoring points overdoor lights and remote sounders.Depending on how the Controller is configured and the devices connected to it Standard and Emergency calls can be indicated via its buzzer and zonal LEDs. Two buttons A and B are also provided to allow the user to Reset Mute or Accept standard calls as detailed below.Standard Calls when triggered by a calling device the Controllers internal buzzer sounds continuously and the relevant zone indicators illuminate steady.Pressing the Controllers Reset Button A if enabled cancels all standard calls.Pressing the Controllers Mute Button B if enabled silences the Controllers internal buzzer. However if a new call standard or emergency is triggered anywhere on the system the buzzer will resound.Alternatively instead of muting calls Button B can be configured as a CALL ACCEPT button.Pressing Call Accept sends a slow pulsing acknowledgement signal to overdoor lights and reset points cw sounders provided they are wired as shown on the example wiring diagram below. Should a new call standard or emergency be triggered anywhere on the system any zones in the acknowledgement state will revert to a standard call.Emergency Calls when triggered by a calling device the Controllers internal buzzer pulses and the relevant zone indicators flash. This level of call takes priority over standard calls and cannot be muted accepted or reset at the Controller. An emergency call can only be reset at the device from which it was triggered or via a reset point wired on the same zone.Key FeaturesCompatible with C-TECs entire range of 800 Series field devicesHoused in an attractive surface mounting plastic enclosure measuring just 214mm x 178mmTwo call levels - standard constant tone and emergency intermittent toneOptional mute and call acceptreset buttonsCall Accept functionality allows staff to send an intermittent call acknowledgment signal to calling zones to confirm help is on the way dependent on wiring and field devices usedIncludes a 12V 300mA PSU and 2 volt-free relay contacts which activate on a standard or emergency callInnovative slide-in labelling systemZones can be wired in 4 or 6 core 702 stranded security cableAdditional master controllers and expansion units available for use as repeaters on larger sitesOptional boxed PSUs cw with space for a 12V VRLA battery available for sites where a standby battery facility is required GBP 234.98 1
C-Tec EP203 3 Zone Automatic Extinguisher Panel LPCB Certified - EP203 C-Tec EP203 3 Zone Automatic Extinguisher Panel LPCB Certified - EP203The EP203 three zone automatic extinguisher panel has been specifically designed for use in areas housing expensive dangerous or irreplaceable items of equipment. Third-party approved by the LPCB to EN 12094-1 the European standard for Fixed Firefighting Systems - Components for Gas Extinguishing Systems and EN54 parts 2 and 4 the panel epitomises quality durability and reliability.Featuring an intuitive 128 x 64 pixel two-colour graphic display that gives clear and concise feedback to the user installer and commissioning engineer the panel also includes six monitored inputs including hold and abort a time stamped log adjustable flood times and volt-free changeover relays for fire local fire 1st stage active 2nd stage active extractor fan and fault.The panel is supplied in an elegantly styled durable enclosure with all of its electronics - apart from its powerful 3A EN54-4 switch mode PSU - mounted on a detachable metal bridge plate for ease of installation. A wide range of ancillaries are also available including remote status units hold-off and abort buttons line terminators and output expansion relay boards.Key FeaturesThird-party LPCB certificated to EN 12094 part 1 and EN54 parts 2 and 4Functions as a standard three zone fire panel with additional circuitry for controlling the release of fire-suppressing gas into protected areasUnique 128 x 64 pixel graphical display facilitates straightforward system programmingAny combination of activated zones can be programmed to automatically start the panels extinguishant release sequenceIncludes a pull-down front-panel manual release button and two keyswitches for accessing the panels functions and toggling between automanual modeThree conventional sounder circuits two x 1st stage one x 2nd stagePowerful 3A EN54-4 compliant switch mode PSULow quiescent current - less than 40mA on mains failWide range of monitored inputs and auxiliary outputs see schematicAbort and hold inputs allow the panels release sequence to be cancelled or suspended at any timeTime-stamped event logRS485 connections for up to eight flush or surface remote status units with their own LCDs manual release and mode automanual switches. Single gang economy status units without an LCD are also available.Extensive range of commissioning and engineering functionsOptional relay expansion boards and single gang abort and hold buttonsIdeal for use in computer rooms telecommunication centres archive storage areas chemical plants generator rooms museums etc..System line terminator included with all panels GBP 399.43 1
C-Tec NC910F Conventional 10 Zone Flush Master Call Controller C-Tec NC910F Conventional 10 Zone Flush Master Call ControllerThe NC910FCall Controller is compatible with all 800 Series call points ceiling pulls infrared ceiling receivers monitoring points overdoor lights and remote sounders.Depending on how the Controller is configured and the devices connected to it Standard and Emergency calls can be indicated via its buzzer and zonal LEDs. Two buttons A and B are also provided to allow the user to Reset Mute or Accept standard calls as detailed below.Standard Calls when triggered by a calling device the Controllers internal buzzer sounds continuously and the relevant zone indicators illuminate steady.Pressing the Controllers Reset Button A if enabled cancels all standard calls.Pressing the Controllers Mute Button B if enabled silences the Controllers internal buzzer. However if a new call standard or emergency is triggered anywhere on the system the buzzer will resound.Alternatively instead of muting calls Button B can be configured as a CALL ACCEPT button.Pressing Call Accept sends a slow pulsing acknowledgement signal to overdoor lights and reset points cw sounders provided they are wired as shown on the example wiring diagram below. Should a new call standard or emergency be triggered anywhere on the system any zones in the acknowledgement state will revert to a standard call.Emergency Calls when triggered by a calling device the Controllers internal buzzer pulses and the relevant zone indicators flash. This level of call takes priority over standard calls and cannot be muted accepted or reset at the Controller. An emergency call can only be reset at the device from which it was triggered or via a reset point wired on the same zone.Key FeaturesCompatible with C-TECs entire range of 800 Series field devicesHoused in an attractive flush mounting plastic enclosure measuring just 214mm x 178mmTwo call levels - standard constant tone and emergency intermittent toneOptional mute and call acceptreset buttonsCall Accept functionality allows staff to send an intermittent call acknowledgment signal to calling zones to confirm help is on the way dependent on wiring and field devices usedIncludes a 12V 300mA PSU and 2 volt-free relay contacts which activate on a standard or emergency callInnovative slide-in labelling systemZones can be wired in 4 or 6 core 702 stranded security cableAdditional master controllers and expansion units available for use as repeaters on larger sitesOptional boxed PSUs cw with space for a 12V VRLA battery available for sites where a standby battery facility is required GBP 228.82 1
C-Tec NC920F Conventional 20 Zone Flush Master Call Controller C-Tec NC920F Conventional 20 Zone Flush Master Call ControllerThe NC920FCall Controller is compatible with all 800 Series call points ceiling pulls infrared ceiling receivers monitoring points overdoor lights and remote sounders.Depending on how the Controller is configured and the devices connected to it Standard and Emergency calls can be indicated via its buzzer and zonal LEDs. Two buttons A and B are also provided to allow the user to Reset Mute or Accept standard calls as detailed below.Standard Calls when triggered by a calling device the Controllers internal buzzer sounds continuously and the relevant zone indicators illuminate steady.Pressing the Controllers Reset Button A if enabled cancels all standard calls.Pressing the Controllers Mute Button B if enabled silences the Controllers internal buzzer. However if a new call standard or emergency is triggered anywhere on the system the buzzer will resound.Alternatively instead of muting calls Button B can be configured as a CALL ACCEPT button.Pressing Call Accept sends a slow pulsing acknowledgement signal to overdoor lights and reset points cw sounders provided they are wired as shown on the example wiring diagram below. Should a new call standard or emergency be triggered anywhere on the system any zones in the acknowledgement state will revert to a standard call.Emergency Calls when triggered by a calling device the Controllers internal buzzer pulses and the relevant zone indicators flash. This level of call takes priority over standard calls and cannot be muted accepted or reset at the Controller. An emergency call can only be reset at the device from which it was triggered or via a reset point wired on the same zone.Key FeaturesCompatible with C-TECs entire range of 800 Series field devicesHoused in an attractive flush mounting plastic enclosure measuring just 214mm x 178mmTwo call levels - standard constant tone and emergency intermittent toneOptional mute and call acceptreset buttonsCall Accept functionality allows staff to send an intermittent call acknowledgment signal to calling zones to confirm help is on the way dependent on wiring and field devices usedIncludes a 12V 300mA PSU and 2 volt-free relay contacts which activate on a standard or emergency callInnovative slide-in labelling systemZones can be wired in 4 or 6 core 702 stranded security cableAdditional master controllers and expansion units available for use as repeaters on larger sitesOptional boxed PSUs cw with space for a 12V VRLA battery available for sites where a standby battery facility is required GBP 309.20 1
C-Tec NC920S Conventional 20 Zone Surface Master Call Controller C-Tec NC920S Conventional 20 Zone Surface Master Call ControllerThe NC920S Call Controller is compatible with all 800 Series call points ceiling pulls infrared ceiling receivers monitoring points overdoor lights and remote sounders.Depending on how the Controller is configured and the devices connected to it Standard and Emergency calls can be indicated via its buzzer and zonal LEDs. Two buttons A and B are also provided to allow the user to Reset Mute or Accept standard calls as detailed below.Standard Calls when triggered by a calling device the Controllers internal buzzer sounds continuously and the relevant zone indicators illuminate steady.Pressing the Controllers Reset Button A if enabled cancels all standard calls.Pressing the Controllers Mute Button B if enabled silences the Controllers internal buzzer. However if a new call standard or emergency is triggered anywhere on the system the buzzer will resound.Alternatively instead of muting calls Button B can be configured as a CALL ACCEPT button.Pressing Call Accept sends a slow pulsing acknowledgement signal to overdoor lights and reset points cw sounders provided they are wired as shown on the example wiring diagram below. Should a new call standard or emergency be triggered anywhere on the system any zones in the acknowledgement state will revert to a standard call.Emergency Calls when triggered by a calling device the Controllers internal buzzer pulses and the relevant zone indicators flash. This level of call takes priority over standard calls and cannot be muted accepted or reset at the Controller. An emergency call can only be reset at the device from which it was triggered or via a reset point wired on the same zone.Key FeaturesCompatible with C-TECs entire range of 800 Series field devicesHoused in an attractive surface mounting plastic enclosure measuring just 214mm x 178mmTwo call levels - standard constant tone and emergency intermittent toneOptional mute and call acceptreset buttonsCall Accept functionality allows staff to send an intermittent call acknowledgment signal to calling zones to confirm help is on the way dependent on wiring and field devices usedIncludes a 12V 300mA PSU and 2 volt-free relay contacts which activate on a standard or emergency callInnovative slide-in labelling systemZones can be wired in 4 or 6 core 702 stranded security cableAdditional master controllers and expansion units available for use as repeaters on larger sitesOptional boxed PSUs cw with space for a 12V VRLA battery available for sites where a standby battery facility is required GBP 315.38 1