Security panels provide several functions to coordinate the operation and
management of a security system.
They can include an integrated keypad or
LED indicators. Most designs include a power transformer for converting
the AC voltage to a DC voltage for the sensor loop and contain a rechargeable battery for backup if the commercial power fails.
A terminal strip provides for the connection of the wiring that connects all the sensors to the
controller as well as the external telephone line. Most designs include a
printed circuit board containing all the electronics and a microprocessor. It
also connects to and controls the siren that is activated when an alarm condition exists.
Security panels are known by numerous names, such as central control box, control panel,
alarm panel, and interface panel. They all perform similar functions including controlling and
monitoring sensor status, providing power to the system, connecting the telephone line to the
monitoring station, and handling the programmable options for the system.
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