56050801 - Rev B
3
© 2017 Telguard
When RFC is declared, the STC LED will flash 5 times and the STC relay will trip.
Restoral of this condition occurs when a message is received from the TCC.
Panel Presence Failure (PPF)
Panel presence failure condition (PPF) is declared when the Telguard is unable to
detect the presence of the alarm panel. PPF is indicated by the STC LED flashing 7
times. A supervisory report is generated and sent to the TCC for Central Station
delivery upon detection of PPF. Restoral of this condition occurs when the alarm
panel is detected as present for the selected delay time.
NOTE: The factory default for PPF is Disabled and needs to be Enabled for its use.
In order for the PPF feature to work, Tip, Ring, and the return connections for Tip
and Ring must be connected between the panel and the Telguard.
Complete Power Supervision
The Telguard supervises and reports status of the backup battery and AC power
source. The Telguard has an integrated control and power module which also keeps
the Telguard battery charged. This battery charger function is also supervised.
Low/Missing Battery Condition (LBC)
The Telguard checks the backup battery voltage on initial power-up and every 60
seconds thereafter.
If the battery voltage is less than 11.6 volts, it changes
from ‘good’ to ‘bad’ state and a LBC is declared whereby the STC LED blinks twice,
and the STC relay trips.
When the 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.
AC Failure Condition (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.
Dial Tone Failure (DTF)
The Telguard continuously monitors the 30V supply circuit that provides dial tone
to the alarm panel. A Dial Tone Failure (DTF) is declared when the 30V supply drops
to 20V or less while the alarm panel is on-hook. The STC LED will flash 6 times and
the STC relay can be programmed to trip.
Note: This condition will require contacting Telguard Technical Support for
resolution.
Catastrophic Failure (CF)
Catastrophic Failure (CF) is any condition that causes the Telguard to stop
functioning at all levels.
The most common 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.
