TG-7 Cellular Series Installation & Operating Guide
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56053501 Rev A © 2022 Telguard
Features
This section summarizes the key features of Telguard TG-7 Cellular Series communicators.
Operating Mode
The TG-7 Cellular Series is comprised of transmission devices that are installed at protected premises
to provide signal transmission over a cellular connection for alarm systems. The communicator
transmits alarm signals over the nationwide digital cellular network if the telephone line has been
disrupted or compromised, or when set for primary or sole path use of the cellular pathway.
Multiple Alarm Format Support
The Telguard TG-7 Cellular Series communicators support multiple alarm communication formats.
Auto Format Detect feature allows the communicator to adapt to receive any listed format. If the alarm
reason, the communicator will adjust to accept the new format.
NOTE: The communicator
auto detection of the panel alarm format.
See Appendix 1 for a list of compatible alarm formats and compliance requirements.
Complete Supervision of Communication Path
The communicator continuously supervises the connection to the alarm panel and the cellular
pathways. If any of these pathways becomes inoperative, the communicator can generate a relay trip
output that can be connected to a zone input of the host alarm panel. These System Trouble
Conditions (STCs) are described below.
Line Fault Condition (LFC)
The communicator monitors voltage on the incoming Telco line. If an inoperative Telco line is
identified, (voltage below 20vdc, on hook) a Telco line fault condition (LFC) is declared. The System
Trouble Condition LED (STC LED) will flash 3 times and the STC relay will trip after a programmable
period of time. Upon Telco restoral, the relay and STC LED are returned to normal.
NOTE: When the communicator is configured to use a sole communications path (cellular), the
Line Fault Condition (LFC) is not applicable.
No Service Condition (NSC)
A no service condition (NSC) occurs when the communicator is unable to register with the cellular
network.
NSC can be configured to trip the supervisory relay output (STC relay) after a programmable period
of time. The STC LED will flash 4 times immediately after losing cellular service and dial-tone will
cease to be provided, independent of the STC assertion and programmed assertion delay. NSC
restoral occurs immediately after cellular service has been acquired.
Radio Communications Failure Condition (RFC)
Radio communications failure condition (RFC) occurs when the communicator is unable to receive a
response from the TCC. When RFC is declared, the STC LED will flash 5 times, dial-tone will cease,
