56050301 – Rev B
4
© 2017 Telguard
battery voltage increases to 12.1 volts, the STC LED and STC relay restore. The Telguard also
indicates Low/missing Battery Condition (LBC) when the battery charger fails or when the battery
load test fails.
AC F
AILURE
C
ONDITION
(ACFC)
AC failure condition (ACFC) is detected immediately when the AC power drops below 102 VAC.
When this condition is detected, the STC LED blinks once, the AC Power LED turns off, and the STC
trip output is activated after 2 hours. When AC power returns to normal (
106 VAC), the AC Power
LED turns on immediately and the STC trip output restores after 60 seconds.
NOTE: If the Telguard is being powered through its DC connection, a Low Power Failure (LPF)
will occur if the DC power drops below 5.1VDC and restore after reaching >5.6VDC. LPF will
present itself in the same manner as the ACFC.
D
IAL
T
ONE
F
AILURE
(DTF)
The Telguard continuously monitors the subscriber line interface circuit that provides dial tone to the
alarm panel. A Dial Tone Failure (DTF) is declared when the line interface while the alarm panel is
on-hook. The STC LED will flash 6 times and the STC relay will trip.
Note: This condition will require contacting Telguard Technical Support for resolution.
C
ATASTROPHIC
F
AILURE
(CF)
Catastrophic Failure (CF) is any condition that causes the Telguard to stop functioning at all levels.
The most common cause for CF is AC power failure followed by a complete discharge of the backup
battery. The STC1 and STC2 trip outputs are activated and the visible indication is loss of all LED
activity. Total loss of power to the Telguard does not prevent transmission of alarm messages from
the alarm panel “through” the Telguard and out over an operative phone line. If power is connected
properly to the unit when a CF occurs, please contact Telguard Technical Support for resolution.
T
ELGUARD
A
UTOMATIC
S
ELF
-
TEST
R
EPORT
The automatic self-test signal is programmed to a daily, weekly or monthly schedule as prescribed
when the Telguard is registered. The central station receives the automatic self-test report in the
same format that the alarm panel normally uses for communication over the Telco line. The self-test
code and testing frequency are set during registration, and can accommodate any code the Central
Station expects. The TCC captures all current and historical data pertaining to the operation of the
Telguard when it processes the automatic self-test signal. This data contains current operational
status (C.O.S.) of the Telguard such as "All OK", "AC fail condition", "low/missing battery condition",
or any combination of these as well as the current signal strength. In addition, the data also contains
historical data for supervisory events that occurred since the last self-test or remote query report
signal was transmitted. This data includes the number of occurrences of AC fail conditions, low
battery conditions, line fault conditions, communications failure conditions and no cellular service
conditions. This additional information is available by contacting Telguard Technical Support or by
visiting
www.Telguard.com
(dealer log-in credentials required)
.
T
ELGUARD
R
EMOTE
Q
UERY
C
APABILITY
Although the Telguard has the capability for a daily, weekly, or monthly automatic self-test, a
separate feature is provided for determining the current operational status of every Telguard. This
feature is called Remote Query and is used to provide real-time operational status for the Telguard
on-demand. It is useful in resolving STC events that are reported by the alarm panel to the central
station. The Remote Query is available via
www.Telguard.com
. The Remote Query causes the
