3Com 3C10402B, Руководство администратора

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436 C
HAPTER
18: T
ROUBLESHOOTING
when the far end equipment enters a Red CFA state. See Red Alarm,
earlier in this section.
Alarms on NBX
Digital Line Cards
T1 and E1 Digital Line Cards support all of the alarm states and signals
described in
“Alarm Descriptions” on page 435 . Table 81 , next, and
Table 82 on page 437 describe how the status lights indicate alarm
conditions on Digital Line Cards.
Table 81 3C10165, 3C10165B, 3C10165C, 3C10116, and 3C10116C Status
Lights and Error Conditions
Status Light Purpose
Nominal On: There are no error or alarm conditions.
Flashing: A call is active on at least one channel.
CF (Carrier Fail) On: A Red Alarm state or Blue Alarm state exists on the card.
To determine which alarm state exists:
1 Log on to the NBX NetSet utility using the administrator ID
and password.
2 Click PSTN Gateway Configuration > Digital Line Cards .
3 In the Select Device Type list, select T1 Span List or ISDN
PRI Span List, and then click Apply .
4 Select the span you want and click Status . The words Red
Alarm or Blue Alarm appear in the Status field.
RA (Remote Alarm) On: A Yellow Alarm state on the card. To confirm that the
Yellow Alarm state exists:
1 Log on to the NBX NetSet utility using the administrator ID
and password.
2 Click PSTN Gateway Configuration > Digital Line Cards .
3 In the Select Device Type list, select T1 Span List or ISDN
PRI Span List, and then click Apply .
4 Select the span you want and click Status . The words
Yellow Alarm appear in the Status field.
NOTE: This light is used only on the T1 Digital Line Card.
LB (Loop Back) On: The card is in loop-back testing mode.
NOTE: This light is not used to indicate any of the Red, Blue,
or Yellow alarms.