Features - Telguard TG-4 Installation And Operating Instructions Manual

1.0 GENERAL DESCRIPTION AND OPERATION
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The Telguard model TG-4 is a digital cellular radio alarm transmission device used to provide a back-up
transmission path (cellular) for control communicators (C/Cs). When transmitting alarms it will attempt to use
the secondary transmission path (Cellular) when the Primary path is not available. When transmitting an
alarm signal, Telguard obtains its data from the C/C by way of a telco interface. The Telguard will obtain all
alarm signal information including monitoring station phone number, account number and all zones for every
alarm transmission. The Telguard transmits a Link Request to the Telular Communication Center and when a
link acknowledgement is received, the Telguard handshakes with the C/C and causes the C/C to transmit the
alarm data. Telguard encodes the alarm data into SMS (Short Messaging System) protocol and transmits to
the local digital cellular network provider. The signal is routed from the network provider to the decoding
Telular Communication Center. The Telular Communication Center performs a function similar to a central
station receiver and issues the transmission acknowledgement when the last message in the transmission is
received. After decoding and reformatting, the alarm signal is routed over the telco line (Public Switched
Telephone Network - PSTN) to the appropriate alarm company central station for action.
In a typical alarm installation, Telguard is installed in the same area as the host alarm system. The incoming
telco line is connected from the premises RJ-31x jack to Telguard and then from Telguard's RJ-45 jack to the
host C/C digital dialer in the normal fashion. Two programmable supervisory trip (STC) outputs are 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. 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.
The Listed equipment at the Telular Communication Center (TCC) plays a key role in the operation of every
Telguard. All Telguard units are required to use the Communication Center because of the C/C alarm signal
format encoding and decoding requirements used in packet-data transmissions over the digital cellular network.
The Communication Center also manages the real-time databases for cellular activation and a complete history
of every Telguard's operating conditions. These conditions include programming setup information, cellular alarm
transmission information, supervisory trouble information, status-on-demand information, and automatic self-test
information.
2.0

FEATURES

This section summarizes the key features of the Telguard. Actual installation instructions begin in Section
5.0.
2.1 O
PERATING
The Telguard is a digital cellular SMS transmission device that is installed at the protected premises to
provide alarm transmission integrity for security systems. It is used to provide a back-up transmission path
(cellular) for control communicators (C/Cs). If the primary path is not available the C/C will attempt to transmit
the alarm message over the cellular network.
2.1.1 Auto Format Detection
Telguard Digital default program setting is for Auto Detection of the C/C alarm format. Auto Format
Detect feature allows the Telguard to adapt to receive any listed (see section 2.2) format on every
alarm transmission. If the C/C alarm format is changed for whatever reason, the Telguard will sense
the new format and accept the alarm signal. Note: Auto Format Detection does not support SIA2 or
DMP formats. SIA2 and DMP must be programmed manually.
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© 2007 Telular Corporation