CentrAlert Installation Manual
Contents
1. Geoquip Ltd CentrAlert Installation Manual QA430 GEOQUIP WAS SS ZS WORLDWIDE CentrAlert Manual INSTALLER NOTES Release Date 05 09 2006 QA0430 Rev 0 05 09 2006 Page 1 Geoquip Ltd CentrAlert Installation Manual QA430 TERMINATING THE SENSOR Testing Feeder Connections When multiple feeder cable connections are made it is important to check each connection as the installation proceeds as it can be very time consuming to find one fault among several daisy chained connections The recommended procedure is to start the installation at the End Of Line and work back towards the electronics using a multimeter to test the integrity of the sensor loop after each new junction box and length of feeder is connected For details see TESTING THE SENSOR INSTALLATION below TERMINATING THE SENSOR Multi Zone Junction Box Connections In many larger installations multi pair feeder cables are used to bring the sensor signals from multiple zones back to the electronic equipment sited away from the perimeter In order to minimise the labour required many sensor signals may be connected using feeder cables of up to as many as twenty pairs running along the perimeter of the site wi Junction Box Alpha Cable o paart ot s o s ot s ot so Multi pair Feeder Cable2. Marshalling Box terminal boards and the Marshalling Box is electrically isolated from the rest of the rack based circuitry by a combination of transformers and opto electronics This protects the more fragile and costly rack based hardware from the majority of damage which might otherwise be incurred during installation or during severe electrical disturbance CentrAlert has NO onboard controls for adjusting the system s performance and is intended solely to be configured via RS232 RS485 or Ethernet using an external control system such as Geolog This makes the CentrAlert format ideal for applications where absolute security is required the vulnerable electronics are mounted away from the perimeter in a protected environment and no adjustments whatsoever can be made without authorised access to the control system A selectable audio signal to assist with operator alarm verification is available as a balanced 6000 OdBA analogue output Page 8 Geoquip Ltd CentrAlert Installation Manual QA430 ELECTRONIC ANALYSIS EQUIPMENT CENTRALERT MONITORED CONTACT INPUTS As described above CentrAlert provides inputs for dry contact connections as well as for Alpha Microphonic Sensors allowing other perimeter protection devices such as Infra Red Beams or Microwaves to be connected into the system Alarm or Tamper signals from these other devices are then communicated along with any Alarms or Tampers generated by the electronic analysis of the Aloh
3. NG BOX AND RACKS Each group of twelve sensor signals from the Marshalling Box is connected via a 25 way D type cable to the appropriate rack unit Since each rack unit can handle up to 24 sensors there are two connectors on the rear of each rack Master and Slaves to receive these 25 way cables 4 X KAA Tested JB 17 02 05 Gooquip fuse 2 amp 2 bd CentrAlert _ Connection for sensors 13 24 Connection for sensors 1 12 Page 12 Geoquip Ltd CentrAlert Installation Manual QA430 CONTACT CONNECTION BETWEEN MARSHALLING BOX AND RACKS There is one 9 way D type cable connection to carry all the Contact signals between the Marshalling Box and the Master Rack Unit The connector for this is found on the rear of the Master Rack ONLY this connector is not fitted to Slave Racks ymi OH ey YW Tested JB 17102105 fuse 2amp CentrAlert ee ae Connection for Contact Signals A standard straight through 9 pin male to female serial cable will achieve the correct connection Note that this is NOT a standard RS 232 connection The cable carries power to the circuitry within the Marshalling Box which monitors the contact inputs as well as optically isolated data signals and should NEVER be connected or disconnected while the system is powered up If it is necessary to break this connection power the system down before doing so CONNECTION TO GCRLY RELAY RACK lf a Ce
4. a Sensor signals These contact inputs are fully monitored so that as well as being able to receive Alarm notifications from an external device they can also be used with monitoring resistors to detect whether the device has been disconnected or shorted out in which case a Tamper signal will be generated DISCONNECT MONITORING CENTRALERT SHORT CCT REMOTE CONTACT INPUT MONITORING DEVICE Control options are provided to allow the user to specify the value of monitoring resistors used if any on each dry contact input and also to set the appropriate polarity of contact signal Most devices signal an Alarm condition by opening a normally closed relay but in the event that a device signals an Alarm by CLOSING the relay the corresponding contact input on CentrAlert can be configured accordingly A delay facility is also provided which allows for brief activations of a contact input to be ignored A minimum time can be set for which a contact must remain active in order to generate a full Alarm condition This can be helpful with e g some laser based detection systems which can indicate a series of very brief alarms if a minor interruption occurs such as a bird flying through the beam These nuisance alarms can be reduced if required using this delay feature Page 9 Geoquip Ltd CentrAlert Installation Manual QA430 ELECTRONIC ANALYSIS EQUIPMENT CENTRALERT REMOTE ADJUSTMENT AND DIAGNOSTICS As well as offering simple relay
5. ed pairs are cut off JUNCTION BOX TAMPER SIGNALS QA430 ALPHA l ALPHA FEEDER ALPHA O CLU ALPHA IN OUT FEEDER If it is not a site requirement to monitor every junction box lid tamper independently then the number of pairs used can be reduced The microswitch tamper signal from this second junction box may be connected in series with the incoming pair which is carrying the lid tamper from the previous junction box creating one combined tamper signal In the event of sabotage the system would then be able to determine that one of the junction boxes had been opened but not which one Page 3 Geoquip Ltd CentrAlert Installation Manual QA430 TERMINATING THE SENSOR Multi Zone Junction Box Connections CONNECTING LARGE NUMBERS OF ZONES When feeder cables of up to twenty pairs are used Geoquip can supply junction boxes with terminal blocks fitted to facilitate the daisy chaining of the cables MULTI WAY KRONE CONNECTOR An alternative version suitable for the connection of four sensors is also available This would be used when Dual Zones are implemen
6. he installed wiring Note that the long runs of feeder cable often used in CentrAlert installations will increase the loop resistance by a few hundred ohms but this should not significantly affect the readings taken Page 5 Geoquip Ltd CentrAlert Installation Manual QA430 ELECTRONIC SIGNAL PROCESSING amp ANALYSIS PRINCIPLES OF OPERATION The Alpha Microphonic Sensor Cable s signal is amplified processed and analysed electronically to identify the typical vibration signatures of climb cut and other attacks on the fence This electronic analysis involves various stages of filtering and other signal processing to distinguish these signatures from other sources of disturbance such as weather It offers multiple channels of analysis each dedicated to detecting a particular form of attack with various controls over the performance of these different channels AUDIO OUTPUT MB DETECTION UT DETECTION ALARM STATUS SENSOR SIGNAL Events Timer W DETECTION SENSOR TAMPER TAMPER MONITORING STATUS The signal processing also includes a section dedicated to monitoring the integrity of the sensor This will generate a tamper signal if the sensor is disconnected or short circuited Page 6 Geoquip Ltd CentrAlert Installation Manual QA430 ELECTRONIC ANALYSIS EQUIPMENT The Detection Channels As can be seen from the graphic above each of the three channel
7. ignal But in installations where the fence is well protected from the weather e g prisons this channel will allow the detection of subtle attempts to create a break in the fence with repeated light saw attacks over a long period Specific procedures for adjusting these various channel controls to give optimum protection for any particular site are provided in the installation documentation supplied with the analysis equipment Page 7 Geoquip Ltd CentrAlert Installation Manual QA430 ELECTRONIC ANALYSIS EQUIPMENT CENTRALERT One CentrAlert unit can process up to 512 sensor and or contact inputs but must be rack mounted in a controlled environment between 10 and 50 degrees C an ae ae a ae a my Ay ae iy BY oy EAE E RIELELEEEL EL BELELLLELLEL They ee hth ih iw i a oy BB a i TTS ir a Wi hii Ae iI AAN iy 3 ra AER REA It requires mains power approx 50W per 24 zones and can communicate by relay outputs RS232 RS485 or Ethernet Extremely flexible options are available for serial or bus communication with multiple Management Systems as well as Mimic Panels and a CentrAlert rack system can also provide simple control of many CCTV systems directly without the intervention of any third party devices It can also interface to GPS and Rugby timecode devices and send time information to other devices within the security system Full lightning and transient protection is provided as part of the
8. n Reception Barrier Entrance Infra Red Beam Secure o Defensor 10 Reception 4rea Panic Alarm PA Button Secure Rx EE COM1 38400 bps Including the display of diagnostic information such as overall sensor signal level and the current detection status of each of the separate channels The Remote Adjustment facility also offers a significant advantage in terms of system security If there are no controls directly accessible on the electronics then only those personnel with authorised access to the controlling computer system will be able to perform any modifications to the detection settings Thus it would not for example be possible for a rogue operator to reduce the system sensitivities so as to allow undetected access to the site Equally all changes made to the system s settings through Remote Adjustment are logged on the computer system and may be inspected by senior personnel at any time Page 10 Geoquip Ltd CentrAlert Installation Manual QA430 ELECTRONIC ANALYSIS EQUIPMENT CENTRALERT DATA CONNECTIONS RS232 vs ETHERNET As well as being able to signal Alarm events by simple relay outputs CentrAlert has two main options for intelligent communications RS232 and Ethernet The most important difference between the two is that RS232 is a point to point connection so a separate serial port will be required on the management system for each device to be connected Ethernet is a bussed connection however allowing multi
9. nagement System failure Wi Tested JB 17 02 05 am RS232 Connection to Backup Mimic Panel A 9 pin male to female twisted cable with pins 2 amp 3 crossed over is used for this connection Page 15
10. ntrAlert is supplied with relay outputs for example to drive a mosaic mimic panel or similar the RS 232 connection for this is found on the rear of the Master Rack Unit l W Tested JB 17 02 05 fuse 2 amp CentrAlert RS232 Connection to GCRLY A straight through 9 pin female to female D type cable will achieve the correct connection to the connector labelled CONTROL on the rear of the GCRLY unit Page 13 Geoquip Ltd CentrAlert Installation Manual QA430 CONNECTION TO THE MANAGEMENT SYSTEM RS232 amp Audio Since the rack units are normally mounted within the control room area of the installation the most common interface used to make a data connection to the Security Management System is RS232 The 9 pin D type connector for this is to be found on the rear of the Master Rack Unit labelled sms UW Tested JB 17 02 05 4 CentrAlert ae ne p RS232 Connection to Management System A normal straight through 9 pin male to female serial cable will achieve the correct connection to a computer s serial port i e NOT a null modem cable Note that the maximum distance for a direct RS232 connection is about 25m and in many cases the layout of plant and control rooms may make it necessary to extend this range using off the shelf line drivers or fibre modems The normal data rate for CentrAlert communications is 9600 baud so most line drivers will enable a connection of
11. onnection is required This is of particular benefit when more than one CentrAlert is used as it removes the need to provide multiple sound card inputs for the audio connections Page 11 Geoquip Ltd CentrAlert Installation Manual QA430 ELECTRONIC ANALYSIS EQUIPMENT CENTRALERT INSTALLATION IN THE PLANT ROOM CentrAlert is supplied in 19 rack mount units with one or more external Marshalling Boxes providing all the required terminals for the connection of input signals from the perimeter The number of rack mount units and the number of Marshalling Boxes depends on the scale of the installation one rack unit is required per 24 sensor signals and one Marshalling Box can receive up to 72 sensor or contact signals from the perimeter The Marshalling Box usually connects to the rack mounted analysis units using pre made cables supplied with the equipment but the layout of the plant or control rooms may be such that it is necessary to fabricate some of these cables on site If so the installer should contact Geoquip for details of the cable connections It is important to note that the connecting cables between the Marshalling Box and the rack units should not exceed 5m Acommon arrangement is for the Marshalling Box to be mounted on the wall adjacent to the cabinet housing the rack units keeping the cable runs short and making access easy for the connection of the signals brought in from the perimeter SENSOR CONNECTIONS BETWEEN MARSHALLI
12. outputs for Alarm and Tamper Annunciation CentrAlert can also communicate by RS232 RS485 or Ethernet These fully bi directional interface options allow CentrAlert not only to transmit notifications of Alarm amp Tamper conditions but also to offer full remote adjustment and diagnostics These features allow the use of sophisticated computer systems to control the signal analysis parameters and so a clear amp comprehensive user interface may be presented to the engineer graphically on screen CentrAlert BE General E5 Engineer Defensor Status O Gain O Gain B E Gain C E Pre Alarm o Audio W Tamper 5 vents as 4 19 19 10 13 3 S H Pre Alarm 7 ii mS x _ 14 ion ce 14 74 E Alarm we 4 gt 2 j Secure 10 10 o 10 50 5 5 Fls i i W Data Eror 0 Circuit Sensor Type Datalog Zone Calculation Status 1 Defensor 1 Leeds Office Entrance Intercom Secure 2 Defensor 2 Leeds Office Guardwire Fence Detection Secure 3 Defensor 3 Leeds Office OUT Gate Secure N Read Engine Setup 4 Defensor 4 Production Process Mixer II Failure Flow Meter Secure 5 Contact 5 Offices Emergency Exit Door Magnetic Door Contac Secure Help B Contact B Office 63 Window Front Breakglass Detector Secure R Contact f Office Area Corridor PIR Dual Tech Secure 8 Contact 3 Admin Bldg 1st Floor Computer Am Smoke Detector Secure x Close 9 Defensor 9 Mai
13. ple devices to be attached via a single Ethernet port on the management system Thus if a site is going to be protected using many separate CentrAlert units an Ethernet network represents the most efficient way to connect these multiple units to a single management system It should be noted that a point to point RS232 connection represents a critical point of failure if broken whereas a suitable Ethernet network such as Geoquip s own Gthernet system allows for redundant data paths This means that if a network connection is broken the Gthernet system will self repair using redundant links until such time as the broken connection is restored A broken RS232 connection however results in a complete loss of communication with the device in question until repaired AUDIO CONNECTIONS ANALOGUE vs ETHERNET CentrAlert provides an analogue Audio Output to allow the operator to listen to the signal from the perimeter to assist in Alarm Verification and Monitoring If an RS232 data connection to the management system is used this audio signal is usually transmitted separately on twisted pair cable and connected to a sound card input on the management system computer Thus it may be presented to the operator through the same speakers which play the system warning sounds etc lf an Ethernet connection is used to link the electronics and the management system however the audio is streamed as data through the network and no separate analogue c
14. s In order to facilitate the inter connection of these multi pair cables Geoquip provide suitable junction boxes in a number of formats Page 2 Geoquip Ltd CentrAlert Installation Manual TERMINATING THE SENSOR Multi Zone Junction Box Connections CONNECTING ZONES IN PAIRS One of the most common arrangements is for sensor signals to be brought back to the electronics in pairs with a junction box at the meeting point of two zones being used to connect the two Alpha cables to a multi pair feeder cable An extra pair within the feeder cable is used to bring the junction box s own Tamper microswitch signal back to the electronics for independent monitoring The top two terminals connect the microswitch tamper signal into a separate pair within the feeder cable Thus two zones of Alpha Sensor require three pairs of feeder cable when allowance is made for this extra Junction Box Tamper DAISY CHAINED CONNECTIONS lf a feeder cable with at least five pairs is used it is then possible to continue the run of feeder to another such meeting point of two zones and connect the sensors from those zones as well The sensor signals from the two alpha cables are connected into two pairs of the outgoing feeder and the microswitch tamper signal is linked into a third outgoing pair Any pairs of the incoming feeder which are already carrying a sensor or tamper signal are directly connected to a pair of the outgoing feeder while all unus
15. s of detection has a Gain or Sensitivity control to allow the system to be adjusted to suit the fence fabric site conditions etc and the Cut channel features two extra controls The Climb Channel often referred to as Channel A n includes sophisticated processing to reject as much N ee environmental disturbance as possible while still aa detecting the characteristic signature of a climb over attack The unrivalled performance of Geoquip s analysis equipment allows for reliable operation in heavy rain and with winds of up to 70km h though care must be taken to ensure that the fence fabric is in good condition and does not vibrate or rattle in adverse conditions The Cut Channel also known as Channel B or the Impact Channel includes additional controls for Events and Timer which allow the user to determine the number of Cut or Impact events which must occur within a certain time window in order for an Alarm to be generated Acommon setting is for two Cut events to be required within a thirty second window for a full Alarm condition to be registered This greatly reduces the nuisance alarms caused by one off accidental impacts or electrical discharges The Saw Channel often called Channel C is extremely sensitive and should be used with caution Attacking the fence with a saw typically generates much less sensor signal than a Cut or Climb attack and in exposed areas environmental disturbance may well swamp this small s
16. ted and separate Upper and Lower sensor runs are to be connected from each of the two zones at the junction box The multi way Krone Connector Block provides an easy way to connect the incoming feeder pairs carrying existing sensor or tamper signals to the appropriate pairs of the outgoing feeder Page 4 Geoquip Ltd CentrAlert Installation Manual QA430 TESTING THE SENSOR INSTALLATION Once the sensor is attached to the fence and connected to its End Of Line termination it is possible to test the integrity of the installation even before the electronics is installed It is in fact advisable to test each connection in a chain AS IT IS INSTALLED see Testing Feeder Connections above The following test procedure should be followed The EOL termination used in CentrAlert systems is a 4k70 resistor in parallel with a capacitor for signal bypass A simple multimeter may be used to test the loop resistance of the sensor after installation Set the meter to auto range resistance metering and connect its probes to the appropriate pair of the feeder cable carrying the relevant sensor signal the reading may briefly be unstable but should settle to around 4k Q after a couple of seconds If the resistance measured is significantly lower than 4k70 then there is a short circuit somewhere in the installed wiring If the resistance measured is significantly higher than 4k7Q then there is a poor connection or an open circuit somewhere in t
17. up to 1km The OdB 600 ohm balanced analogue Audio Output is provided as a 3 5mm jack connection on the rear of the Master Rack E l W Tested JB 17 02 05 fuse 2 amp CentrAlert Audio Output Please note that due to the lack of international standards for 3 5mm jack connections only the matching jack plugs supplied with the rack units should be used to make the connection from this output to the management system s sound card input Page 14 Geoquip Ltd CentrAlert Installation Manual QA430 CONNECTION TO THE MANAGEMENT SYSTEM Ethernet If a CentrAlert is fitted with an Ethernet interface this will be mounted separately within the rack mount enclosure 3 E 8 a ay 20 J ad gt a gt 3W 20euUU0D ROU agg ae IA lt 0 f i DS Td meats TO Tj m ZOQUE LD Aa COS4S Rov 2 lola gt St Bat rs eae 337 07 00 05 PACs j 7 4 t y e eer N g f 9 4 RJ45 connector for CAT5 cable A CAT5 cable should be connected between this RJ45 and a suitable network switch hub or router which links through to the Management System s network port This is a 10 100Mb Ethernet connection which includes audio as a data stream when required For details of the configuration of IP addresses etc consult the supplied documentation CONNECTION TO A BACKUP MIMIC PANEL CentrAlert can also be connected to a backup Mimic Panel which will operate in the event of a Ma
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