8
SFP Ports
or
One model offers two
SFP
(A and B) ports for
1+1
protection; a
second model offers one
SFP
without protection.
ACT:
•
Glows green when the
SFP
port is the active receive line.
•
OFF when the
SFP
is not the receive line
•
Glows red+green when the
SFP
port is manually forced to
be the active receive line
LNK:
•
Glows green when there is a valid link
•
Glows red when a loss of optical signal occur,
LOF
, or with
continuous optical bit errors
RAI
:
•
Off when no remote defects are detected
•
Glows red+green when remote
LOS
or
BER
detected
MSA
:
•
Off when no SFP is installed in the port
•
Glows green when no
SFP
alarms are detected
•
Glows red+green when
SFP
alarms or defects are detected
at remote end
•
Glows red when
SFP
alarms or misconfigurations are
detected locally, i.e., when the
SFP
is missing, or when
SFP
speed is not at 155Mbps