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Monitoring System Activity and Performance LTPH-UM-1049-02, Issue 2
46 January 9, 2002 H2TU-C-319 List 4E
Alarm History at the HDSL2 Interface
Figure 27 shows the H2TU-C HDSL2 alarm history and Table 18 describes the alarms.
Figure 27. H2TU-C HDSL2 Alarm History Screen
DBER xxx-DBER Bit Error Rate—The DS1 BER has exceeded the built-in 24-hour threshold limits of
approximately 10
-6
. (xxx denotes either TUC or TUR.)
(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.
Table 17. DS1 Alarm Descriptions (Continued)
Screen Alarm Front-Panel Alarm Description
Monitor Performance Event Log Config Inventory Report Rlogon Help
H2TU-C HDSL2 Alarm History
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Alarm First Last Status Count
MTAE OK 0
MTAF OK 0
LOSW OK 0
MAL OK 0
LA OK 0
HBER 08/16/01 00:37 08/16/01 00:45 OK 7
SHORT OK 0
GND OK 0
OPEN OK 0
Press: C(l)ear Alarm History
------------------------------------------------------------------------------
Use <Space> to cycle through Interface : H2TU-C HDLS2
choices and <Enter> to view Statistics : Alarm History
ID: xxxx--xxxx--xxxx--xxxx 08/01/2001 07:05:33 H2TU-C System: Alarm