Central Station Communications
52
Document #50066 Rev.D2 12/03/02 P/N 50066:D2
4.3.9 Fire Drill
The Drill (manual evacuate) feature turns on both Notification Appliance Circuits (if programmed as enabled) and
turns off the silence LED. To perform a fire drill, press the
MODE
key followed by the code
3745
and then the
[ENTER/STORE]
key. The display will read
dril
. The relay (if programmed for alarm) is not activated. There is an
option to transmit the fire drill report code to the Central Station.
☛
3745
spells DRIL on a Touch-Tone
®
phone
During a fire drill, the Silence key will silence both Notification Appliance Circuits and the Reset key restores the
panel to normal.
All zones remain active during a fire drill.
4.3.10 No Battery/Low Battery
This control panel detects two levels of battery fault conditions, low battery and no battery. The low battery condi-
tion is 20.4 volts per NFPA and UL requirements. The no battery condition can occur if a battery is not installed or if
the battery voltage drops below the 'no battery threshold' voltage limit. The no battery threshold voltage is the mini-
mum voltage required to operate the system fully under loss of AC power. This voltage must be high enough to
power initiating devices, power notification appliances and provide internal power to system components including
the microprocessor. Both the no battery and low battery condition may be reported to the Central Station.
When AC power is lost and the system is running on battery, the panel will report 'loss of AC power' to the Central
Station after a programmed delay period. The panel will report 'low battery' when the low battery threshold is
reached. If AC power is not restored and the 'no battery' threshold is reached, the panel will power off. This prevents
false alarms, nuisance reports and incorrect panel operation when the battery falls to dangerous levels. After the AC
power is restored, the no battery (no_b) message will appear. The battery must be disconnected from the system and
either replaced or allowed to restore itself before being reinstalled.
CAUTION!
Be certain to clear the no battery condition since the battery will not recharge from this condition and
the panel will not clear itself. The low battery condition will self-clear when the battery recharges, provided the
battery is good.
4.4
Central Station Communications
The control panel transmits zone and system status reports to Central Station via the public switched telephone net-
work. Two supervised telephone line connections are made to interface the control panel to the telephone lines. Two
7-foot telephone cables are required for this purpose and must be ordered separately.
The control panel supervises both telephone lines for proper voltage. A delay of two minutes will occur before a fault
on either phone line connection is reported as a trouble. When a fault is detected, an audible trouble signal will
sound, the yellow trouble LED will blink, the 4-character display will show either 'no_1' for Primary Line fault or
'no_2' for Secondary Line fault, and the trouble condition will be reported to the Central Station over the remaining
good phone line.
The control panel comes with line seizure capability provided for both the primary and secondary telephone line
interfaces. Any time that the control panel needs to make a call to a Central Station, line seizure will disconnect any
local premises phones sharing the same telephone line.
All transmissions to the Central Stations will be sent over the Primary Central Station phone line. In the event of
noisy phone lines, transmissions will be sent over the backup Secondary phone line.
Two phone numbers must be programmed, the Primary Central Station phone number and the Secondary Central Sta-
tion phone number. All system reports will be transmitted to the Primary Central Station phone number. Reports will
automatically be sent to the Secondary Central Station phone number if attempts to transmit to the Primary Central
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