3Com NBX 100 Administrator's Manual - page 378
378
C
HAPTER
11: 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
NBX T1 and E1 Digital Line Cards support all of the alarm states and
signals described in
“Alarm Descriptions”
on
page 377
.
Table 68
, next,
and
Table 69
on
page 379
describe how the status lights indicate alarm
conditions on digital line cards.
Table 68 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 Device 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 Device 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.