Telguard T100C001 Manuel utilisateur

TELGUARD®

Cellular Alarm Transmission System

Using Microburst™Control Channel Technology

MODEL T100C001

INSTALLATION AND OPERATING INSTRUCTIONS

COMPANY CONFIDENTIAL

For use by TELGUARD®customers only.

Distribution to others strictly prohibited.

December 21, 2000

TELGUARD®is a registered trademark of Telular Corporation. Products are protected

under one or more of the following U.S. patents:

4,658,096 4,737,975 4,775,997 4,868,519 4,922,517

CORPORATION

Corporate Headquarters

647 North Lakeview Parkway

Vernon Hills, Illinois 60061

847-247-9400 Fax: 847-247-0021

T E L U L A R

FOREWORD

Many customers purchase the Telguardbecause they prefer its price and features, but do not intend to use it in an

application that requires UL Grade A Burglary or Fire Listings. If such UL Listings are not required, it is possible to

use model T100C001 that is UL Listed for Supplemental Use only. This means that the T100C001 will not enhance

the grade of service. Also, the T100C001 is not to be used as a main or secondary line for a fire or burglar alarm

system.

NOTICES

ABOUT THIS MANUAL

This manual assumes that youhave basic securitysysteminstallationskills suchas measuring

voltages, stripping wire, properly connecting wires together, connecting wires to terminals, and

checkingphone lines. It also assumes that youhave a familiaritywith the proper installationand

programming tasks related to various Control/Communicator panels.

The material and instructions covered in this manual have been carefully checked for accuracy and

are presumed to be reliable. However, Telular assumes no responsibilityfor inaccuracies and

reserves the right to modify and revise this manual without notice.

It is our goal at Telular to always supply accurate and reliable documentation. If a discrepancy is

found in this documentation, please mail or fax a photocopy of the corrected material to:

Telular Security Products

Technical Services Department

420 Thornton Road, Suite 109

Lithia Springs, GA 30122

Fax: 678-945-1651

FCC Notices

EXPOSURE TO RADIO FREQUENCY ENERGY

In 1991, the Institute of Electrical and Electronics Engineers (IEEE), and in 1992, the American National

Standards Institute (ANSI), updated the 1982 ANSI Standard for safety levels with respect to human exposure

to RF energy. Over 120 scientists, engineers and physicians fromuniversities, government healthagencies

and industry, after reviewing the available body of research, developed this updated Standard. In March,

1993, the U.S. Federal Communications Commission (FCC) proposed the adoption of this updated Standard.

The design of your Telular Telguard DataBurst complies with this updated Standard. Of course, if you

want to limit RF exposure even further than the updated ANSI Standard, you may choose to install the unit in

a manner that locates its antenna at anevengreater distance fromthe general public than is recommended as a

minimum by the standard.

To insure compliance with the standard, when selecting a mounting location for your Telguard DataBurst do

not mount it (or its associated antenna) in an area where the general public could reasonably be within 8

inches (20 centimeters) of the antenna.

EFFICIENT OPERATION

Donot operate your Telular productwhenholdingthe antenna. Be sure to mountthe unitsuchthatits antenna is a minimumof

eight (8) inches (20 centimeters) is maintained fromthe general public.

For the best service quality, keep the antenna free fromobstructions and point the antenna straight up.

ANTENNA CARE AND REPLACEMENT

Do not use the unit witha damaged antenna. If a damaged antenna comes into contact withthe skin, a minor

burn may result. Have your antenna replaced by a qualified technician immediately. Use only a manufacturer-

approved antenna. Non-approved antennas, modifications, or attachments could impair service quality,

damage the Telguard and violate FCC regulations.

ELECTRONIC DEVICES

Most modern electronic equipment is shielded from RF energy. However, RF energy from cellular devices

may affect inadequately shielded electronic equipment.

RF energy may affect improperly installed or inadequately shielded electronic equipment operating in homes

and businesses. Check withthe manufacturer or its representative to determine if these systems are

adequately shielded fromexternal RF energy.

Consult the manufacturer of any personal medical devices (such as pacemakers, hearing aids, etc.) to

determine if they are adequately shielded from external RF energy.

BLASTING AREAS

To avoid interfering with blasting operations, turn OFF your unit when in a “blasting area” or in areas

posted: “Turn off two-way radio.” Construction crews often use remote control RF devices to set off

explosives.

POTENTIALLY EXPLOSIVE ATMOSPHERES

Turn OFF your unit when in any area with a potentially explosive atmosphere. It is rare, but your Telguard

DataBurst or its accessories could generate sparks. Sparks in such areas could cause an explosion or fire

resulting inbodily injury or even death.

Areas with a potentially explosive atmosphere are often, but not always, clearly marked. They include

fueling areas suchas gas stations; below deck on boats; fuel or chemical transfer or storage facilities; areas

where the air contains chemicals or particles, such as grain, dust, or metal powders; and any other area

where you would normally be advised to turn off your vehicle engine.

Do not transport or store flammable gas, liquid or explosives in the area of your Telguard DataBurst or

accessories.

Vehicles using liquefied petroleum gas (such as propane or butane) must comply with the National Fire

Protection Standard (FPA-58). For a copy of this standard, contact the National Fire Protection Association,

One Batterymarch Park, Quincy, MA 02269, Attn: Publications Sales Division.

--------------------------------------------------------------------------------

FCC PART 15 CLASS B COMPLIANCE

This equipment has beentested and found to complywiththe limits for a Class B digital computingdevice, pursuant to Part

15 ofthe FCCrules. These limits are designed to provide reasonable protectionagainstharmful interference ina residential

installation. This equipmentgenerates, uses and canradiate radio frequencyenergyand, ifnot installed and used in

accordance withthe instructions, maycause harmful interference to radio communications. However, there is no guarantee

thatinterference will notoccur ina particular installation. If this equipmentdoes cause harmful interference to radio or

televisionreception, whichcanbe determined byturningthe equipment OFF and ON, the user is encouraged to tryto correct

the interference byone or more ofthe followingmeasures:

•Reorient or relocate the radio/television antenna.

•Increase the separation between the radio/television equipment and the Telguard terminal.

iii

•Connect the radio/television equipment to an outlet on a branch circuit different fromthat to which the

Telguard terminal is connected.

•Consult your Authorized Telular Dealer or an experienced radio/TV technician for additional suggestions.

The user or installer may find the following booklet prepared by the Federal Communications Commission

helpful, “Interference Handbook”. The booklet is available fromthe U.S. Government Printing Office,

Washington, DC 20402.

The user shall not make any changes or modifications to the equipment unless authorized by the Installation and Operating

Instructions. Unauthorized changes or modifications could void the user’s authorityto operate the equipment.

PART 68

This equipment complies withPart 68 ofthe FCC Rules. Located behind the back-up batteryofthe Telguard



model

T100C001 is a label that contains, amongother information, the FCC RegistrationNumber and Ringer Equivalence Number

(REN) for this equipment. Ifrequested, this informationmustbe provided to the Telephone Company.

The Telguard



Cellular Alarm Transmission System is registered for connection to the public telephone

network using an RJ38X or RJ31X jack.

The ringer equivalence number (REN) is used to determine the quantityof devices which may be connected

to the telephone line. Excessive REN's on the telephone line may result in the devices not ringing in response

to an incoming call. Inmost, but not all areas, the sum of the REN's should not exceed five (5.0). To be

certain of the number of devices that may be connected to the line, as determined by the total number of

REN's, contact the telephone company to determine the maximumof REN for the calling area.

If the Telguard



Cellular Alarm Transmission System caused harmto the telephone network, the Telephone

Company will notify youin advance that temporarydiscontinuance ofthe service maybe required. But if

advance notice is notpractical, the Telephone Company will notify the customer as soonas possible. Also,

youwill be advised of your rights to file a complaint with the FCC if youbelieve it is necessary.

The telephone company maymake changes in it's facilities, equipment, operation, or procedures that could

affect the operationof the equipment. If this happens, the Telephone Company will provide advance notice in

order for you to make the necessary modifications in order to maintain uninterrupted service. If trouble is

experienced with the Telguard



Cellular Alarm Transmission System please contact Telular Technical

Service inthe U.S.A. for repair and (or) warranty information.

Telular Security Products

TECHNICAL SERVICES DEPARTMENT

420 Thornton Road, Suite 109

Lithia Springs, GA 30122

Phone: (800) 229-2326

Ifthe trouble is causingharmto the telephone network, the Telephone Companymayrequestthatyouremove the equipment

fromthe networkuntil the problemis resolved.

The customer (user) should not attempt any repair to the Telguard



Cellular Alarm Transmission System.

Repair of this equipment should be referred to only qualified technical personnel.

Note that this equipment cannot be used on the public coin service provided by the Telephone Company.

Connection to Party Line Service is subject to state tariffs. (Contact the state public utilitycommission or

corporation commission for information).

FUTURE TESTING AND LIMITATIONS ON USE

Telguardis part of an advanced design alarm-communication system. It does not offer guaranteed protection against

burglary and fire. Any alarmcommunication systemis subject to compromise or failure.

The Telguardwill not work without power. Devices powered by AC will not workif the AC power supplyis off

for any reason, however briefly, and at the same time, the backup battery is missing, dead or not properly installed.

The cellular radio network, needed to transmit alarmsignals froma protected premises to a central monitoring station,

may be inoperable or temporarily out of service. Cellular radio networks are also subject to compromise by

sophisticated methods of attack.

This equipment, like any other electrical device is subject to component failure. Although this equipment is designed

to be long lasting, the electrical components could fail at any time.

Due to these limitations, we recommend that if the automatic self-test feature is not enabled, other arrangements be

made with the user to test the systemat least once every three months. Moreover, arrangements should also be made

for on site inspection/test by a licensed alarm installer at least once each year.

TABLE OF CONTENTS

FOREWORD..................................................................................................................................................................I

NOTICES........................................................................................................................................................................I

ABOUT THIS MANUAL ...................................................................................................................................................I

FCC NOTICES...............................................................................................................................................................I

EXPOSURE TO RADIO FREQUENCY ENERGY...................................................................................................................I

EFFICIENT OPERATION.................................................................................................................................................II

ANTENNA CARE AND REPLACEMENT............................................................................................................................II

ELECTRONIC DEVICES..................................................................................................................................................II

BLASTING AREAS.........................................................................................................................................................II

POTENTIALLY EXPLOSIVE ATMOSPHERES.....................................................................................................................II

FCC PART 15 CLASS B COMPLIANCE..........................................................................................................................II

PART 68......................................................................................................................................................................III

TECHNICAL SERVICES DEPARTMENT ...........................................................................................................................III

FUTURE TESTING AND LIMITATIONS ON USE ...............................................................................................IV

1.0 GENERAL DESCRIPTION AND OPERATION...........................................................................................1

2.0 FEATURES........................................................................................................................................................1

2.1 OPERATING MODE............................................................................................................................................1

2.2 C/C COMPATIBLE COMMUNICATION FORMATS................................................................................................2

2.3 COMPLETE SUPERVISION OF COMMUNICATION PATHS.....................................................................................2

2.3.1 Line Fault Condition (LFC)...................................................................................................................2

2.3.2 Telco Communications Failure Condition (CFC) .................................................................................2

2.3.3 No Service Condition (NSC)...................................................................................................................2

2.3.4 Radio Communications Failure Condition (RFC).................................................................................3

2.4 COMPLETE POWER SUPERVISION......................................................................................................................3

2.4.1 Low/Missing Battery Condition (LBC) ..................................................................................................3

2.4.2 AC Failure Condition (ACFC)................................................................................................................3

2.4.3 Watchdog Monitor/Reset (WR) ..............................................................................................................3

2.4.4 Catastrophic Failure (CF).....................................................................................................................3

2.5 TELGUARD AUTOMATIC SELF-TEST REPORT .....................................................................................................4

2.5.1 Telguard Remote Query Capability.......................................................................................................4

2.6 TELGUARD TERMINAL STRIP CONNECTIONS.....................................................................................................4

2.6.1 Programmable Supervisory Trip Output (STC) Relay...........................................................................4

2.7 DIAGNOSTIC AND STATUS LEDS......................................................................................................................5

2.7.1 LED Signal Strength Indication.............................................................................................................5

2.8 TELGUARD SETUP PROGRAMMING PARAMETERS ..............................................................................................5

2.9 UL LISTINGS BY MODEL...................................................................................................................................6

2.9.1 Model T100C001....................................................................................................................................6

2.9.2 Model T200C001....................................................................................................................................6

2.9.3 Model T300C001....................................................................................................................................6

3.0 REQUEST TELGUARD ACTIVATION FOR CELLULAR SERVICE FROM TELULAR .....................6

3.1 GETTING READY.........................................................................................................................................7

4.0 INSTALLATION SUMMARY.........................................................................................................................7

4.1 TRANSMIT C/C ALARMS OVER THE TELCO CONNECTION.................................................................................7

4.2 PROGRAM TELGUARD AND CONFIRM COMMUNICATIONS INTEGRITY ...............................................................7

4.3 TRANSMIT C/C ALARMS OVER THE CELLULAR RADIO NETWORK .....................................................................8

4.4 CONNECTTELCO LINE AND SUPERVISORY TRIP OUTPUT..................................................................................8

4.5 COMPLETE THE INSTALLATION .........................................................................................................................8

5.0 INSTALLATION STEPS .................................................................................................................................8

5.1 STEP 1: TRANSMIT C/C ALARMS OVER THE TELCO CONNECTION....................................................................9

5.2 STEP 2: PROGRAM TELGUARD AND CONFIRM COMMUNICATIONS INTEGRITY.................................................10

5.2.1 Locate Unit...........................................................................................................................................10

5.2.2 Connect Backup Battery and AC Power Transformer.........................................................................11

5.2.3 Decide on a STC Trip Output Strategy................................................................................................11

5.2.4 Default Programming...........................................................................................................................12

5.2.5 Complete the Telguard Programming Data Sheet...............................................................................12

5.2.7 Connect Antenna and Temporarily Place Unit....................................................................................13

5.2.8 Measure Received Signal Strength (RSSI) for Best Antenna Placement.............................................14

5.2.9 Request Telguard Activation "PING" from Telular's IVR...................................................................15

5.3 STEP 3: TRANSMIT C/C ALARMS OVER THE CELLULAR RADIO NETWORK.......................................................17

5.3.1 Connect C/C to Telguard

Jack 2...........................................................................................................17

5.3.2 Verify Alarm Signal Transmissions over Cellular...............................................................................18

5.4 STEP 4: CONNECT TELCO LINE AND SUPERVISORY TRIP OUTPUT...................................................................19

5.4.1 Be sure the Telguard is the first device on incoming phone line........................................................19

5.4.2 Connect RJ31X to Telguard Jack 1 and Check LFC............................................................................20

5.4.3 Connect STC Trip Output.....................................................................................................................20

5.4.4 Check Telguard Supervisory Trip to C/C ............................................................................................21

5.5 STEP 5: COMPLETE THE TELGUARD INSTALLATION .........................................................................................22

5.5.1 Check Settings......................................................................................................................................22

5.5.2 Permanently Mount and Properly Ground the Telguard Chassis.......................................................22

A1.0 WIRING DIAGRAM......................................................................................................................................23

A1.1 JACK AND PIN ASSIGNMENTS ....................................................................................................................24

A1.2 TERMINAL STRIP PIN ASSIGNMENTS ..........................................................................................................25

A1.3 LED MODES AND FUNCTIONS ...................................................................................................................26

A1.4 JUMPERS ....................................................................................................................................................27

A2.0 OPERATIONAL QUICKREFERENCE TABLE........................................................................................28

A2.1 SETUP PROGRAMMING PARAMETERS ..........................................................................................................29

A2.2 TELGUARD COMMUNICATION FORMATS ....................................................................................................30

A2.3 COMPATIBLE CONTROL COMMUNICATORS ................................................................................................30

A2.4 COMPATIBLE RECEIVERS............................................................................................................................30

A2.5 ACTIVATION FORM (FAX to 678-945-1651)......................................................................................31

A3.0 UL INSTALLATION REQUIREMENTS FOR SUPPLEMENTAL USE (MODEL T100C001).............32

A4.0 DETAILED SPECIFICATIONS....................................................................................................................33

A4.1 DIALER TO INTERFACE ELECTRONICS .........................................................................................................33

A4.2 POWER.......................................................................................................................................................33

A4.3 MICROBURSTRADIO ...............................................................................................................................33

A4.4 PHYSICAL...................................................................................................................................................33

A4.5 WARRANTY................................................................................................................................................33

A5.0 PARTS LIST....................................................................................................................................................34

INDEX..........................................................................................................................................................................36

1.0 GENERAL DESCRIPTION AND OPERATION

The Telguardis a cellular radio alarmtransmission device, which is used to provide a backup transmission path

(cellular) for control communicators (C/Cs) in case the primary transmission path (telco) is not available. When

transmitting over cellular, Telguard obtains its data fromthe C/C by way of a telco interface. The device transmits a

Link Request to the Telular operated Communication Center and when a link acknowledgement is received, the

Telguard handshakes with the C/C and causes the C/C to transmit the alarmdata. Telguard encodes the alarmdata into

digital packet data protocol and transmits on one of twenty-one available control channels used by the local AMPS

cellular network provider. The signal is routed from the network provider through the Aeris virtual network system to

the decoding (message) center. The CommunicationCenter performs like a central stationreceiver and issues the

transmission kiss-off when the last message in the transmission is received. After decoding and reformatting, the

alarmsignal is routed over telco to the appropriate alarmcompany central station for action.

Telguard is compatible with most control/communicators and no special equipment is needed at the premises or in the

alarm monitoring station. All Telguard programming is done with a standard touch-tone telephone or lineman’s buttset

and Telguard can be installed wherever cellular service is available. Different dialing patterns between telco and

cellular, cellular area code changes and PBX access numbers are not a problemfor installers. Fraud and cloning

problems are eliminated since all transmissions occur over the cellular control channels in packet-type data format

and never over any voice channels.

In a typical alarm installation, Telguard is installed in the same area as the host alarm system. The incoming telco line

is connected fromthe RJ31X to Telguard and then to the host control/communicator's digital dialer in the normal

fashion. A programmable supervisory trip (STC) output is available for connection to the host control/communicator's

trip zone input terminals in order to provide a Telguard trouble signal to the C/C. Additionally, automatic self-test and

status-on-demand report signals are transmitted exclusively over the cellular network to the Communication Center.

All models are capable of transmitting an automatic self-test signal to the central station on a daily, weekly, or monthly

schedule. Telguard has its own internal power supply/battery charger. All telco line and cellular monitoring,

switching and supervisory functions are built in--no extra modules are required.

All Telguard models come with a special Microburst™ compatible 3-watt cellular transceiver (without handset),

antenna, interface withintegrated control and power module, connecting cable, and plug-in transformer. The installer

to provide backup times that range fromtwenty-four to seventy-two hours must supply a rechargeable 12V battery,

7.0AH or 14.0AH. Type of enclosure and type of antenna included are the only differences among the three models

available. Economy model T100C001, UL Listed for Supplemental Use only, comes in a flame-retardant plastic

enclosure (9½in.x4½in.x1¾in.) with whip antenna. Model T200C001, UL Listed for residential and commercial fire,

as well as residential burglary, comes in a standard metal enclosure (12in.x12in.x3½in.) with keylock and magnetic

mount antenna with12ft. of cable. Model T300C001, UL Listed for all residential burglary and fire, commercial

burglary and fire, and bank applications comes in an attack-resistant enclosure with keylock, tamper switch, and

magnetic mount antenna.

The Listed equipment at the Telular operated Communication Center (TCC) plays a key role in the operationof every

Telguard. All Telguard units are required to use the Communication Center because of the C/C alarmsignal format

encoding and decoding requirements used in packet-data transmissions over the cellular network control channels.

The CommunicationCenter also manages the real-time databases for cellular activation, airtime, billing, installation

site location, and a complete history of every Telguard's operating conditions. These conditions include programming

setup information, cellular alarmtransmission information, supervisorytrouble information, status-on-demand

information, and automatic self-test information. This informationis made available to authorized personnel through

Telular's Interactive Voice Response System(IVR), Telular's computer access Communication Center Intranet System,

or though Telular's Customer Service Center.

2.0 FEATURES

This section summarizes the key features of the Telguard. Actual installation instructions begin in Section 5.0.

2.1 OPERATING MODE

The Telguard is a cellular radio packet transmissiondevice that is installed at the protected premises to

provide alarm transmission integrity for security systems. It is used to provide a backup transmission path

(cellular) for control communicators (C/Cs) in case the primary transmission path (telco) is not available. If

the telco line is cut or the C/C is unable to communicate with the central station receiver due to busy

telephone line circuits then Telguard transmits the alarmmessage over the cellular network.

2.2 C/C COMPATIBLE COMMUNICATION FORMATS

The Telguard reads the C/C’s alarmmessages and converts the C/C’s digital data format into Microburst

packet data protocol for transmission over the cellular radio network. In order for the C/C to be compatible

with the Telguard, the C/C must be programmed to transmit alarm messages to the central station using one of

the following non-extended formats:

•3+1 pulse; 10pps, Double Round, 1400Hz ack

•3+1 pulse; 20pps, Double Round, 2300Hz ack

•3+1 pulse; 40pps, Double Round, 2300Hz ack

•4+2 pulse; 20pps, Double Round, 1400Hz ack

•4+2 pulse; 20pps, Double Round, 2300Hz ack

•4+2 pulse; 40pps, Double Round, 2300Hz ack

•Radionics ModemIIE or 3A2

•Ademco Contact ID

Hexadecimal account numbers (001-FFF or 0001-FFFF) can be used with 3+1 or 4+2 formats, but Contact

ID and Radionics modem IIE or 3A2requires a four digit account number using digits 0-9 (0001-9999).

2.3 COMPLETE SUPERVISION OF COMMUNICATION PATHS

The Telguard continuously supervises both the primary (telco) and the secondary (cellular) communication

paths. If either pathbecomes inoperative, the Telguard generates a relay trip output that can be connected to

a zone input of the host control communicator and/or used to activate remote sounding devices.

2.3.1 Line Fault Condition (LFC)

The Telguard monitors voltage on the incoming telco line. If an inoperative telco line is identified,

a telco line fault condition(LFC) is declared and Telguard switches to the cellular path. Once the

telco line restores to normal, Telguard checks the radio link and switches back to the telco path after

any communications on the radio link are completed.

LFC is programmable to trip the supervisory relay output (STC) after a 30 or 60 second delay.

When the STC trips, the STC LED indicates 3 flashes at a time and the C/C zone trip message is

transmitted to the alarm company central station indicating systemtrouble. Upon telco restoral, the

STC relay and LFC LED are returned to normal and a STC restoral message is transmitted if the

C/C is programmed to transmit restorals.

2.3.1.1 PBX Installations

PBX’s and other proprietary phone systems sometimes operate at lower voltages than the

standard telco line. Telguard works equallywell onPBX lines or telco lines.

Note: PBX connections are not allowed in any UL Listed installations.

2.3.2 Telco Communications Failure Condition (CFC)

Telco communications failure condition(CFC) is declared when the C/C fails to deliver the alarm

message to the central stationreceiver after a selected number (1-5) of attempts over an operative

telco line. Immediately upon CFC, Telguard switches to cellular mode and allows the C/C to

attempt five transmissions over the cellular network. If the call is not acknowledged after the fifth

attempt, Telguard switches the C/C backto telco and “disarms” the CFC detection. The CFC

detection is re-armed when the C/C has been on-hook continuously for ten-minutes.

2.3.3 No Service Condition (NSC)

Telguard declares a no service condition (NSC) when the measured “receive” cellular radio signal

strength at the protected premises drops to -114 dBmor less.

NSC is programmable to trip the supervisory relay output (STC) after a 30 or 60 second delay.

When the STC trips, the STC LED indicates 4 flashes at a time and the C/C zone trip message is

transmitted to the central station indicating systemtrouble. Restoral of this condition occurs when a

measurable signal strength greater than –114 dBmis maintained for the trip period of 30 or 60

seconds.

2.3.4 Radio Communications Failure Condition (RFC)

Radio communications failure condition (RFC) is declared when Telguard is unable to transmit

over the cellular network even with acceptable signal strength. Two conditions can cause an RFC

to occur, Link Request failure (RFC1) or Link Termination failure (RFC2).

2.3.4.1 RFC1 (Link Request Failure)

When a LFC or CFC has been declared and there is an alarmsignal to communicate, the

Telguard attempts to transmit its message via radio. When the C/C goes off-hook, the

Telguard transmits a Link Request to the TCC and waits for a Link Request ACK. If the

Telguard does not receive an ACK for the transmissionbefore the C/C hangs up, it will

retransmit the Link Request again when the C/C goes off-hook for a redial attempt. If the

Telguard does not receive an ACK after three attempts, then an RFC will be declared

which trips the STC relay, causes the STC LED to flash five times and switches the

Telguard to Telco. Restoral of RFC occurs when the communication cycle is completed.

2.3.4.2 RFC2 (Link Termination Failure)

After the Telguard receives a Link Request ACK fromthe TCC, the Telguard

communicates with the C/C to acquire the alarmmessage and transmits the message via

radio. If the Telguard does not receive a link termination ACK (where the TCC

acknowledges receiving the transmission) within 150 seconds, it will retry sendingthe

entire transmission. Upon failing two attempts, the Telguard switches to Telco and allows

the C/C to communicate directly with the Central Station. An RFC is declared causing the

STC relay to trip and the STC LED to flash five times. Restoral of RFC occurs when the

communication cycle is completed.

2.4 COMPLETE POWER SUPERVISION

Telguard monitors its backup battery as well as its AC power source and reports low or missing power

conditions fromeither. Telguard’s integrated control and power module, protected by a 3 amp 3AG fuse,

incorporates battery charger circuitry that is jumper selectable for high or low battery capacities. The high

battery capacity selection is used for 12V 7Ah, or 12V 14Ah batteries.

2.4.1 Low/Missing Battery Condition (LBC)

The Telguard checks the backup battery voltage on initial power-up and every minute thereafter.

Additionally, a battery voltage test is performed by the Telguard every 24-hours while operating on

AC power in order to measure the loaded battery voltage. Battery charging voltage is lowered to

10.0 volts and the Telguard is forced to operate entirely fromthe battery supply. If the battery

voltage is less than 11.6 volts, a LBC is declared whereby the STC LED blinks twice (½ sec ON, ½

sec OFF, ½ sec ON, ½ OFF every 5 seconds) and the STC relay trips. When the battery voltage

increases to 12.1 volts, the STC LED and STC relay restore.

2.4.2 AC Failure Condition (ACFC)

AC failure condition (ACFC) occurs when AC power is lost or less than 102 VAC for 6 continuous

hours. The AC Power LED goes out immediately, the STC LED blinks once and the STC trip output

is activated after 6 hours. When AC power returns too normal (≥106 VAC for 60 seconds), the AC

Power LED turns on immediately and the STC trip output restores after 60 seconds.

2.4.3 Watchdog Monitor/Reset (WR)

A watchdog monitor/reset (WR) circuit continuously monitors the Telguard’s internal operating

microprocessor functions.

2.4.4 Catastrophic Failure (CF)

Catastrophic Failure (CF) is any condition that causes the Telguard to stop functioning at all levels.

Most commonly because of AC power failure followed bya complete discharge of the backup

battery. The STC trip output is activated and visible indication is loss of all LED activity. Total

loss of power to Telguard does not prevent transmission of alarm messages fromthe host C/C

“through” the Telguard and out over an operative phone line in the normal fashion.

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