56034002 1/9/2006
1
© 2006 Telular Corporation
1.0
GENERAL DESCRIPTION AND OPERATION
The Telguard
model TG-1 is a digital cellular radio alarm transmission device used to provide a primary
transmission path (cellular) for Household control communicators (C/Cs). 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 Digital TG-1 is installed in the same area as the host alarm system
and is connected directly to the host C/C digital dialer via the Telguard’s TG-45 jack in the normal fashion.
One 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 Telular Communication Center. Telguard has its own internal power supply/battery
charger. All cellular monitoring 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 Digital TG-1. Actual installation instructions
begin in Section 5.0.
2.1 O
PERATING
M
ODE
The Telguard Digital TG-1 is a digital cellular SMS transmission device that is installed at the protected
premises to provide primary alarm transmission integrity for household burglary and fire systems. It is
used to provide a primary transmission path (cellular) for control communicators (C/Cs).
2.2 C/C
C
OMMUNICATION
F
ORMATS
The Telguard
reads the C/C’s alarm messages and converts the C/C’s Ademco Contact ID handshake
data format into SMS 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 Ademco Contact ID format. Contact ID format requires a four-digit account
number using digits 0-9 (0001-9999).
2.3 C
OMPLETE
S
UPERVISION OF
C
OMMUNICATION
P
ATH
The Telguard Digital TG-1 continuously supervises the primary (cellular) communication path. If the
cellular communications path becomes 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.
