Communications
Failure Restore
A Communications Failure will restore when the network again hears from the radio in question.
Comm Fail Restorals are sent for AlarmNet-A, AlarmNet-M, and AlarmNet-C radios.
Database Update
in Progress
The AlarmNet networks must be updated periodically with new subscriber information. When an
AlarmNet-A network node is given an update, it may be temporarily unable to transmit while it
applies the new database. This message is sent as a general notification, and is typically for
informational purposes only. (Note that there is no restore message associated with this
condition)
Diagnostic signal See “A-Type diagnostic” or “F-Type diagnostic”
Exiting battery
charge mode
This message is unique to the 7720V2. It indicates that the radio is coming out of battery
charging mode.
This message will be received after the following sequence of events has occurred:
• During normal operation, the transmitter detects that its battery is so weak that it cannot
sustain a radio transmission. (A low battery message has been previously sent.)
• At this time, the radio automatically enters battery charging mode. Note that while it is
charging the battery, the radio is not capable of transmitting messages. (If the fault relay is
used, it will activate at this time, indicating that the radio will not be transmitting any alarms.)
• After the battery has been sufficiently charged, the radio will send the message shown. This
indicates that the radio has exited battery charging mode, and is again ready to transmit. (If it
is programmed for latching operation, the fault relay will be restored at this time.)
• The radio then reviews the status of all of the channels (zones) and sends their current status.
If a channel (zone) connected to the radio went into alarm during the charging period and is
still in alarm when charging is complete the radio will send that alarm following the message.
Fire Supervisory
Fault
A supervisory fault is an indication of an open circuit in one of the control’s initiating circuits,
and implies that one or more of the system’s initiating devices would not cause an alarm if they
were to activate.
Note: Supervisory Restores are not a programmable option as are alarm restores, and therefore are
automatically transmitted.
Note: Due to the fact that the 7620ULF is not a fire alarm control, supervisory faults from the fire
control panel may be used to trigger one or more of the eight channels on the 7620ULF, and thus
will be reported as alarms. The central station should be aware of which of the eight channels are
actually reporting supervisory conditions so alarm reports for these channels can be responded to
correctly.
Note: Supervisory messages may also be sent from a 7920SE if it is installed with an applicable
Ademco control and “Ademco Supervision” is used to monitor the wiring between the Ademco
control and the radio. In this configuration, only the first 6 channels are relevant.
Fire Supervisory
Restore
Supervisory Restores are not a programmable option as are alarm restores, and therefore are
automatically transmitted.
AlarmNet Messages Page 23
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