DSC PC1832 Reference Manual page 56

Panel Bell Trouble* – This code will be sent when a bell Trouble
occurs. This is when an open circuit is detected across the bell
terminals. When the Trouble condition is restored, the Main Bell
Trouble Restoral reporting code will be transmitted.
*Residential use only
Panel AUX Trouble – This code will be sent when an auxiliary
voltage supply Trouble occurs. When the voltage supply is
restored, the Main Auxiliary Trouble Restoral code will be sent.
GND Fault Trouble – This reporting code will be sent when the
earth ground connection detects a ground fault. The Ground Fault
Restoral reporting code will be sent when the earth ground fault
connection is restored.
Periodic Test – This is the reporting code that is sent to the mon-
itoring station to test communications (see PC1616/1832/1864
Installation Manual, section 5.6, 'Communicator Programming',
[377] Communication Variables).
Periodic Test TBL – This test transmission code is sent instead
of a Periodic Test Transmission if any of the following conditions
occur:
• Common Fire Trouble
• Fire Zone Alarm (all zones)
• Fire Alarm (5700)
• Fire Zone Trouble (all zones)
• Fire Zone(s) Bypassed
• AUX Trouble (main panel)
• Key Low Power
• Module Supervisory Fault
• [F] Key Alarm
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