Verilink DCSU 2911 (880-502647-001) Product Manual Uživatelský manuál stáhnout pdf (Strana 72)

Troubleshooting

5-6

Verilink DCSU 2911 User Manual

Interpreting Front Panel LEDs

The LED indicators on the front panel of the DCSU 2911 module

display errors caused by T1 line or data terminal equipment

problems. The errors are reflected in the alarm status and the

performance/status menus in the Craft interface. Node Manager

also has an alarm display.

There are five LEDs on the front panel:

•

Two T1 port LEDs

•

Two data port LEDs

•

One system LED

Figure 5-2 DCSU Front Panel

Network Port

LEDs

The network port LEDs display minor, major, and critical alarm

conditions detected on the network line. Net LED 1 and Net LED 2

display alarm status for their respective network ports. Table 4-1

provides a brief description of the network port LED states:

Table 5-2 Network LED Indicators

MANAGEMENT

SYS

LOCAL

NET

DATA

DCSU

Port LEDs

System LED

PRI EXT

2911

State Color Alarm Class Action/Possible Error Condition

Solid Green All okay None

Solid Amber Diagnostic

mode with no

errors

None

Flashing Amber

and Red

Yellow Alarm Check the diagnostic performance status or alarm status

displays. The Yellow Alarm indicates that the unit is receiving

an RAI Signal, which indicates that the far end is not receiving a

signal from the near end.

Solid Red Major Check the performance status or alarm status display. Loss of

Signal (LOS) from far end transmits all-ones.

Off None None Port is not enabled.

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 78 79

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