Alarm History Screen; Figure 14. Alarm History Screen - ADTRAN HTU-C NB Installation And Maintenance Practice

Alarm History Screen

Alarms are indicated by the HTU-C NB/WB for Litespan in the following ways:
• HTU-C DB-9 control port Alarm History screen
• Front Panel LEDs
• Standing alarms (through direct access to the Litespan, or remote access through a
modem)
CIRCUIT ID:
LOCATION
--------------------------------------------------------------------------------
HTU-C
(DSX-1)
HTU-R
(DS1)
--------------------------------------------------------------------------------
SPAN 1
HTU-C
HTU-R
The HTU-C NB/WB for Litespan DB-9 control port screen alarms are presented on the
following screens:
• Alarm History Screen
• Current System Status Screen
• Troubleshooting Display Screen
Red, yellow, and blue alarms at both DSX-1 and DS1 interfaces plus HDSL loop synchroni-
zation loss conditions are reported.
TL1 provides alarm support through TL1 retrieval of standing alarms from the Litespan
database. Table 10 defines the TL1 alarm conditions.
61247002L1-5A
T1 Alarm History
ALARM FIRST
RED(LOS)
YELLOW
BLUE(AIS)
RED(LOS)
YELLOW
BLUE(AIS)
HDSL Span History
LP1 HLOS
LP2 HLOS
LP1 MRGN
LP2 MRGN
LP1 MRGN
LP2 MRGN
Press: C to clear history : M for main menu

Figure 14. Alarm History Screen

(Figure 14)
MM/DD/YY hh:mm:ss
LAST CURRENT
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Menu Descriptions
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