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7900-A2-GB20-00
The following table provides a description of the System Status screen:
Status
Function
DSL type
Indicates the type of card, HTU (HDSL Termination Unit), STU (SDSL
Termination Unit), or xTU (unknown card type).
Alarm
The position of the asterisk within the field indicates the alarm status of
each xTU-C.
*
– Major alarm (far left)
*
– Minor Alarm (middle, not used at this time)
*
– Abnormal alarm (far right)
The System Status screen example indicates a Major alarm at
HTU-C/R 3 and a Major and Abnormal alarm at STU-C/R 9.
Poll
Indicates the communications status between the MTU-M and xTU-C.
INS
– In service. The xTU-C is currently in the MTU-M polling cycle.
Polling rate is selectable from the Maintenance menu.
OOS – Out of service. The xTU-C/R was previously detected
and is currently out of service.
MOS – Maintenance out of service. The xTU-C/R has been
manually taken out of the MTU-M polling cycle.
The System Status screen example indicates that STU-C/R 9 is OOS
and STU-C/R 12 was placed in MOS.
Circuit
Indicates the communications status between the xTU-C/R pair.
INS
– In service. The xTU-C is in service.
OOS – Out of service. The xTU-C/R pair is not communicating with
the MTU-M.
- - - - – xTU-C is in MOS or OOS. The xTU-C has been manually
taken out of the MTU-M polling loop and is not being monitored.
The System Status screen example indicates that HTU-C/R 3 circuit
status is OOS.
March 1998
MTU-M Status and Performance Functions
5-3
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