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Dancer Communications, Inc.
Alarm Handling
The Messenger 570 system constantly monitors all inputs to determine if alarm set-points have been violated. If a
set-point has been violated for a specified amount of response time, an alarm condition exists.
This alarm condition will continue until the input has returned to normal and has been externally acknowledged.
When an alarm occurs and the response time has expired, the Messenger 570 system will begin its dial-out
sequence. The Messenger 570 system can deliver an alarm in voice, fax or data mode.
The Messenger 570 system will dial each number in succession. If the alarm is not acknowledged, the Messenger
570 system will wait a specified alarm dial-out interval and then start another dial-out sequence with the same alarm
message.
Alarms can be acknowledged in either data or voice mode.
There are two classes of alarms -
Active acknowledged alarms: The input continues to violate an alarm set-point but an operator has acknowledged
the condition. The Messenger 570 system continues to recognize the alarm condition but will not attempt to make an
outgoing phone call.
Unacknowledged alarms: Any alarms, which have not been acknowledged. An unacknowledged alarm initiates an
alarm dial-out sequence.
Alarm Dial-Out Reminder
An optional feature of the Messenger 570 system will enable the dial-out sequence even after an alarm has been
acknowledged.
When an alarm occurs, the Messenger 570 system will dial out to all phone numbers in its phone number list
once or until it is acknowledged. It will then wait the dial-out interval, as specified in the ALM S menu.
If the re-dial after acknowledgment (in ALM S) is enabled, the Messenger 570 system will dial out again if
there are any unacknowledged or acknowledged alarms present.
If disabled, it will re-dial only if there are unacknowledged alarms. When re-dialing, the system will dial every
number in the phone number list or until it is acknowledged.
Responding to an Alarm Message - Voice Mode
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The Messenger 570 system will call the preprogrammed numbers when an alarm condition is
recognized. When the phone is answered, the Messenger 570 system will repeat the alarm message
up to six times:
“Hello, this is telephone number one two three four five six seven. Alert condition exists.”
Recipients of such calls should press and hold any keypad button for one to two seconds. The Messenger 570
system will respond with the following message:
“OK. Enter security code.”