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Section 5: Central Station Communications
The control panel transmits zone and system status reports to Central Stations via the public
switched telephone network. Two supervised telephone line connections are made to interface the
control panel to the telephone lines. Two optional 7 foot telephone cords are available for this pur-
pose and can be purchased separately.
The control panel supervises both telephone lines for proper voltage. A delay of two minutes will
occur before a fault in either phone line connection is reported as a trouble. When a fault is
detected, an audible trouble signal will sound, the LCD display will indicate the phone line trouble
and the trouble condition will be reported to the Central Station over the remaining operational
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 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 sec-
ondary Central Station 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 transmits to the primary Central Station phone number are unsuccessful. If
10 total attempts to communicate are unsuccessful, a Communicator Failure report will be dis-
played. Note that as an option, all reports may also be sent to the secondary Central Station phone
number.
The FACP meets NFPA 72 National Fire Code reporting requirements for: (a) the type of signal, (b)
condition and (c) location of the reporting premises. The general priority reporting structure is:
1.
Zone Alarms and Restores
2.
Zone Troubles and Restores
3.
System Troubles and Restores
4.
24-hour Test
MS-5UD & MS-10UD Series Manual — P/N 52626:C2 1/24/2012
129
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