Telguard TG-7FP Installation & Operating Guide
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56052401 Rev A
Appendix 3 Commercial Fire Sole Path Installation
Starting with the 2010 edition of NFPA 72, the TG-7FP can be utilized as the sole path for fire
communications. By following Telguard's installation guidelines, the installer can provide the best
conditions for a stable, sole path connection. In order to ensure that the cellular path to be used for
signaling has the highest reliability possible, it is necessary to confirm two additional conditions,
beyond what is outlined above.
TG-7FP Signal Strength
Installation instructions for the Telguard TG-7P indicate that a signal strength of -90dBm (LEDs 4
and 5 on, with LED 3 flashing) i
, an additional level
of signal integrity will minimize false alarm supervision failures caused by interference and
atmospheric fading. Because of this, it is always recommended that the communicator be installed
in a location that provides the best signal strength possible.
Configure Alarm Panel for Sole Path
Fire panels are typically provided with two Telco connections in order to provide multiple reporting
paths. With the TG-7FP having a single RJ-45 Jack, one of these Telco connections is no longer
necessary for UL 864 compliance when using the TG-7FP as the sole path of communication.
However, the panel will continue to supervise that unused line unless changes are made at
installation time.
There are two methods for removing supervision alarms at the panel caused by disconnecting the
second Telco connection. Either method can be used.
1.
Disabling the Second Telco Connection
Some fire panels can be configured to disable the second Telco connection. Once the second Telco
connection is disabled, the panel no longer supervises the connection. This is the preferred method
of removing supervision alarms at the panel caused by removal of the second Telco connection.
2.
Connecting the Telco Connections Together
The Telguard communicator is capable of providing dial tone to both Telco connections, if the Telco
connections are connected together, such that
e in much the same way that multiple extensions
in a household are connected together. If this method is used, the installer must take care to
ensure that dual path reporting is not enabled on the panel, or else simultaneous alarm reports
from the two Telco connections may interfere with each other.
When using this method, it is important to test the TG-7FP device thoroughly. Make sure the panel
does not report a problem with the second line, especially when the panel is reporting to the central
station.
PRI.
DIALER
SEC.
DIALER
ALARM PANEL
T
R
T
1
R
1
T
R
T
1
R
1
TG-7FP
