Paradox Spectra 1641 User Manual page 12

[3] Power Failure
The system has detected a loss of AC power. This trouble
usually occurs during a power failure. If a power failure is not
occurring in your establishment and this trouble appears,
contact your Security Company for service.
[4] Bell/PGM2 Disconnected Trouble
Any device connected to the Bell or PGM2 output is no longer
connected to your alarm system.
[5] Bell Current Failure
During an alarm, the bell output, which uses a fuseless
circuit, will automatically shut down if the current exceeds a
predetermined value. When the system is disarmed, the
current is cut from the bell output and the Trouble warning
may extinguish, but the Trouble may re-occur during the next
alarm if the situation is not corrected.
[6] Auxiliary Current Failure
The auxiliary output, which supplies power to your alarm
system's accessories, uses a fuseless circuit to protect the
power supply against current overload and automatically
shuts down if the current exceeds a predetermined value.
[7] Communication Failure
Your alarm system, if monitored, could not communicate with
the Security Company.
Spectra Keypads 11