Net alarms, Dte alarms, Loss of signal seconds – Verilink PRISM 41TDM (34-00275.4) Product Manual User Manual
Page 40: Out of service seconds, Out of frame seconds, Fdl errored seconds
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C
HAPTER
4: T
ERMINAL
I
NTERFACE
NET
Alarms
This status line shows the current network signal alarm state (Table 4-2) as
determined by the selectable thresholds set in the Alarm Configuration screen (see
page 42).
DTE
Alarms
This status line shows the selected element’s current DTE signal alarm state
(Table 4-3). DTE alarms are enabled or disabled through the DTE Port Parameters
screen (see page 39).
Loss of Signal
Seconds
The LOSS alarm displays, in the Current column, the consecutive seconds the unit
received signal has been interrupted. The Threshold column shows the value (in
seconds) that must be met or exceeded to generate an alarm. Setting the Threshold
value to 0 disables the alarm. Refer to Alarm Configuration on page 42 to set the
alarm parameters.
Out of Service
Seconds
The OOSS alarm displays, in the Current column, the consecutive seconds the unit
has received the out of service code. The Threshold column shows the value (in
seconds) that must be met or exceeded to generate an alarm. Setting the Threshold
value to 0 disables the alarm. Refer to Alarm Configuration on page 42 to set the
alarm parameters.
Out of Frame
Seconds
The OOFS alarm displays, in the Current column, the consecutive seconds the unit
received the out of frame code. The Threshold column shows the value (in
seconds) that must be met or exceeded to generate an alarm. Setting the Threshold
value to 0 disables the alarm. Refer to Alarm Configuration on page 42 to set the
alarm parameters.
FDL Errored
Seconds
The FDL alarm detects when the far-end unit encounters a problem even if the
DDS line are operating normally. FDL alarms only apply in TXP-I or TXP-II
modes and are ignored in the DDS-I, DDS-II, and any test loop or BERT mode.
Table 4-2 NET Alarm Indicators
Alarm
Description
None
No alarm threshold has been exceeded, although errors may exist that do not
exceed thresholds.
LOSS
The Loss Of Signal Seconds threshold is exceeded.
OOSS
The Out Of Service Seconds threshold is exceeded.
OOFS
The Out Of Frame Seconds threshold is exceeded.
FDL
The Facility Data Link threshold is exceeded.
Table 4-3 DTE Alarm Indicators
Alarm
Description
None
DTR on DTE interface is true, or the alarm has been disabled.
DTR A
DTR on indicated interface is false.
DTR B
DTR on indicated interface is false.