Fire-Lite MS-25E Addressable Fire Control Panel - Manual (Page 74)

Model MS-25 Installation and Operation Manual
7-4 53688
7.14 Low Battery
The battery voltage is continuously monitored during normal standby. When the battery is not
present or the voltage is too low, the control panel will indicate a low battery trouble. Both the
LOW BATTERY and GENERAL TROUBLE LED will blink when there is a low battery
condition. The PZT will also sound the trouble cadence. If the silence key is pressed, the
trouble LEDs will be continuously on and the PZT will silence.
7.15 Ground Fault
The control panel monitors the SLC and notification circuits for wiring shorts to earth ground.
If any wire from these circuits is connected to earth ground the control panel will indicate a
ground fault by blinking both the GROUND FAULT and GENERAL TROUBLE LED. The
PZT will also sound the trouble cadence. If the silence key is pressed, the trouble LEDs will
be continuously on and the PZT will silence.
7.16 Phone Line Monitoring
The control panel monitors the phone line voltage at TELCO1 and TELCO2 when line
monitoring is enabled (see programming section 6.5.6.3). When line monitoring is enabled
and there is not sufficient voltage at TELCO1 or TELCO2, the 7 segment display will indicate
“Ln1” and/or “Ln2” for phone line 1 and phone line 2 troubles.
7.17 Reporting Account Monitoring
When the control panel is configured to use the dialer, the reporting accounts will indicate
trouble if the panel has failed to communicate to the central station after 10 attempts. Account
1 trouble is indicated on the 7 segment display as “AC1”. Account 2 trouble is indicated on
the 7 segment display as “AC2”. Once the communication path to the central station is
restored, the account troubles will self restore.
7.18 SLC Fault
In the event that the SLC circuit is shorted or drawing too much current, the panel will
indicate this by displaying “SLC err” on the 7 segment display. Remove the fault and the
trouble will self restore.
7.19 Dialer Error
In the event that the dialer microprocessor is unable to communicate with the main
microprocessor the panel will indicate this by displaying “dlr” on the 7 segment display. If this
trouble is ever displayed, the panel needs to be returned to the factory for repair.