3Com 3C10402B Administrator's Manual page 171

Table 36 BRI-ST Card Status Lights
Status D
Off No Layer 1 connection is
established with the Central
Office (CO).
Yellow A Layer 1 connection is
established but the channel
is not yet ready to make or
receive calls.
Green The channel is ready to make
and receive calls.
E1 and T1 Digital Line Card Status Lights
The 3C10165, 3C10165B, and 3C10165C E1 cards and the 3C10116C
T1 card display these status lights:
CF — Carrier Fail (when lit, indicates either a red alarm or blue alarm)
■
RA — Remote Alarm (yellow alarm)
■
LB — Loopback (when lit, indicates that the card is in loop-back
■
testing mode; does not indicate any of the red, blue, or yellow alarms)
Nominal — The card is framed
■
The 3C10165D E1 and the 3C10116D T1 cards display these status lights:
CO — Central Office:
■
Amber — Alarm condition at the remote end or the CO is not
connected or available.
Green — No alarm condition; the card has a valid connection to the
Central Office.
POST — Power On Self Test:
■
Off — POST test is running. The test runs approximately 5-seconds
after you apply power to the board. After 5-seconds, Off indicates the
POST test failed.
Green — POST test completed successfully.
DCH — D channel status of an ISDN PRI connection:
■
Off — No line is attached or the card does not need a D channel, such
as when the card is running T1-robbed-bit (CAS).
Green — Card is configured for ISDN PRI operation and an active PRI
connection has been established.
Configuring and Managing Digital Line Cards
B1
The channel is not
carrying a call.
A call build-up is
occurring.
A call is connected. A call is connected.
171
B2
The channel is not
carrying a call.
A call build-up is
occurring.