DataKinetics DSC110 User Manual page 13

In this manner the converter affords considerable flexibility in the way that calls
are routed from an incoming circuit to an eventual outgoing circuit allowing for the
possibility of alternative routing in the event of network failure or congestion.
1.2.5 Cross Connections
The converter allows the user to set up cross connections (semi-permanent
connections) between an incoming timeslot on one PCM port and an outgoing
timeslot on any PCM port. These connections can either be simplex or duplex.
1.2.6 Monitoring
The converter allows the user to monitor both Access Side and Network Side
signalling links by dropping a copy of the signalling to a spare PCM port. This
allows for a protocol analyser to be left connected to one PCM port and gives the
user the ability to control remotely which signalling links are monitored. Each
monitored signalling link requires two timeslots on the spare PCM port, one to
monitor the send direction and the other for the receive direction.
1.2.7 Alarm log
The converter logs any alarm events in an Alarm Log. All alarm events have a
'fault title' and are assigned to one of 4 classes, in decreasing order of status:
•
Urgent
•
Prompt
•
Minor
•
Disabled
The operator may change the class of any alarm event under MML command.
Urgent alarms cause the Urgent alarm relay to be activated whilst prompt alarms
cause the Prompt relay to be activated. Minor alarms just appear in the alarm log
whilst disabled alarms do not even get logged to the alarm log.
The Alarm Log has the capacity for up to 200 entries, each entry detailing the
alarm class, fault title, occurrence time, status (active or cleared), and cleared time
(if appropriate). If a new fault occurs when the log is full, the oldest entry which is
either cleared, of lower class, or equal class is overwritten, in that order of
preference.
The operator may request a display of the log at any time and may remove entries
that have cleared status.
DataKinetics DSC110 / DSC210 User Manual Issue 12
assigned to class 3
assigned to class 2
assigned to class 1
assigned to class 0
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