Chapter 1 TL1 Overview
Autonomous Messages
20 TimeProvider TL1 Reference Guide 097-58001-01 Revision E – September 2006
Autonomous Messages can be generated by the unit at any time, whether to report
that a user-initiated change has occurred to some setting within the unit, to report
that an active alarm condition has cleared, etc. The format of an Autonomous
Message is as follows. Note that REPT identifies the response as an Autonomous
Message: EVT for an event and ALM for an alarm.
Event Response Format:
<cr><lf><lf>
sid date time<cr><lf>
alrmcde atag REPT EVT [AIDTYPE]<cr><lf>
”aid,aidtype:condtype,condeff,ocrdat,ocrtim,,,,:condscr”<cr lf>
;
Alarm Response Format:
<cr><lf><lf>
sid date time<cr><lf>
alrmcde atag REPT ALM [AIDTYPE]<cr><lf>
”aid,aidtype:ntfcncde,condtype,srveff,ocrdat,ocrtim,,:condscr”<cr lf>
;
Table 1-5 explains each field that is contained in an Autonomous Message.
Table 1-5. Autonomous Message Fields
Field Description
sid The unit’s Source Identifier (SID), which identifies the specific TimeProvider unit within
the synchronization network. The unit’s SID is set using the SET-SID TL1 command.
date The date of the message, in the format YY-MM-DD, where YY is the 2-digit year, MM is
the 2-digit representation of the month, and DD is the day of the month.
time The time of the message, in the format HH:MM:SS, where HH is the hour in 24-hour
format, MM is the minutes, and SS is the seconds.
almcde The alarm code, which can be one of the following:
*C - The event being reported is a Critical alarm
** - The event being reported is a Major alarm
* - The event being reported is a Minor alarm
A - The event being reported is a Non-alarm Event
atag The Autonomous Message tag, which is a number up to six digits long that increments
by one each time an event is generated. It wraps back to 1 after reaching 999999.
reptype The type of report. It can be either EVT (the event is a non-alarm event), or ALM (the
event is an alarm event).
aid The access identifier, which denotes the system component that the reported alarm or
event applies to.
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