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Monitoring System Activity and Performance
Monitor
Performance
-----------------------------------------------------------------------------
Alarm
RLOS
RAIS
RAI
LRAI
PRM-NE
PRM-FE
DBER
01/30/02 00:37
LOF
------------------------------------------------------------------------------
Use <Space> to cycle through
choices and <Enter> to view
ID: xxxx--xxxx--xxxx--xxxx
Front-Panel
Screen Alarm
Alarm
H4TU-C DS1 Alarms
(Figure 22 on page
(a)
LLOS
LLOS
(a)
LAIS
LAIS
DBER
xxx-DBER
LOF
xxx-LOF
H4TU-R DS1 Alarms
(Figure 23
(b)
RLOS
RLOS
RAIS
RAIS
RAI
RRAI
LRAI
LRAI
PRM-NE
PRMN
PRM-FE
PRMF
DBER
xxx-DBER
LOF
xxx-LOF
(a) This is a DS1-specific alarm that also issues a minor alarm (sent to the management unit or the backplane), if enabled.
(b) AIS-CI is a modified AIS alarm pattern. Equipment not suited to detect AIS-CI still detects this signal as an AIS. AIS-CI is sent
toward the network indicating that an LOS (RLOS) or AIS (RAIS) has been received from the CPE.
36
Event Log
Config
H4TU-R DS1
First
Press: C(l)ear Alarm History
Interface
Statistics :
02/01/2002 12:30:01
Figure 23. H4TU-R DS1 Alarm History Screen
Table 11. DS1 Alarm Descriptions
Description
35)
Line (Unit) Loss of Signal—Loss of the H4TU-C DSX-1 input signal.
Line Alarm Indication Signal—Indicates an AIS (unframed all ones) pattern is being received at the
H4TU-C DS1 input port.
Bit Error Rate—The DS1 BER has exceeded the built-in 24-hour threshold limits of approximately
-6
10
. (xxx denotes either TUC or TUR.)
Loss of Frame—Indicates the incoming DS1 frame pattern is other than the one selected, ESF or SF,
by the FRMG option. Only occurs if the FRMG option is set to SF or ESF. (xxx denotes either TUC or
TUR.)
on this page)
Remote (Unit) Loss of Signal—Loss of the H4TU-R DS1 input signal.
Remote Alarm Indication Signal—Indicates an AIS (unframed all ones) pattern is being received at the
H4TU-R DS1 input port. By default AIS-CI
Remote RAI - Remote Alarm Indication at the H4TU-R—Indicates an RAI alarm (yellow) from the CPE
with errors from the line unit or network.
Line (Clear) Remote Alarm Indication—An RAI condition is detected at the remote and the signal from
the line unit is error-free. RAI signal is transmitted towards the network.
Performance Report Messaging - Near End—The count of the PRM-NE register at the H4TU-R
-6
exceeds the 10
BER threshold at 648 events since 12:00:00 AM.
Performance Report Messaging - Far End—The count of the PRM-FE register at the H4TU-R exceeds
-6
the 10
BER threshold at 648 events since 12:00:00 AM.
Bit Error Rate—The DS1 BER has exceeded the built-in 24-hour threshold limits of approximately
-6
10
. (xxx denotes either TUC or TUR.)
Loss of Frame—Indicates the incoming DS1 payload does not contain the specific frame pattern, ESF
or SF, selected by the FRMG option. Only occurs if the FRMG option is set to SF or ESF. (xxx denotes
either TUC or TUR.)
September 12, 2003
Inventory
Report
Alarm History
Last
Status
OK
OK
OK
OK
OK
OK
01/30/02
00:45
OK
OK
:
H4TU-R DS1
Alarm History
H4TU-C
(b)
is sent towards the network (see
LTPH-UM-1031-03, Issue 3
Rlogon
Help
Count
0
0
0
0
0
0
7
0
System: Alarm
Figure 27 on page
H4TU-C-319 List 1
45)
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