Maintenance Description
Issue 8.0 July 2002
9-23
laser bias current-out-of-range This condition indicates that one or more of
the optical parameters of a RCVR, TRMTR,
or REGENR circuit pack has exceeded the
recommended range.
line auto switch An automatic line protection switch is active.
Likely causes: Failure of incoming OC-48
line.
line FERF The remote FT-2000 terminal is receiving a
line failure from the local FT-2000 terminal.
The remote FT-2000 terminal is notifying the
local FT-2000 terminal of the failure.
Likely causes: Failure of an outgoing OC-48
line (transmit fiber). Failure of local TRMTR
circuit pack, remote RCVR circuit pack, or
intervening REGENR circuit packs.
line forced switch An automatic line protection switch is active
with a priority of "forced switch."
line forced switch at far end An automatic line protection switch is active
with a priority of "forced switch" at the far
end of the OC-48 line.
line forced switch at near end An automatic line protection switch is active
with a priority of "forced switch" at the near
end of the OC-48 line.
line lockout The protection line is locked out and will not
be used to protect a service line failure.
line lockout at far end The protection line is locked out and will not
be used to protect a service line failure at
the far end of the OC-48 line.
NOTE:
If either one of the two OC48 lines are
"locked-out" from any node on the
ring; then, protection is inhibited
throughout the whole ring.
line lockout at near end The protection line is locked out and will not
be used to protect a service line failure.
Because of the architecture of OC48
Add/Drop rings, this implies that protection
is unavailable throughout the ring.
Table 9-2. Condition Descriptions (Contd)
Description (from Retrieve-Alarm Report) Meaning
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