System, Table 3-1, Network interface – Paradyne 3160 User Manual
Page 40: Table 3-2
Operation
3-6
3160-A2-GB21-80
March 1999
Table 3-1.
System LEDs
Name
Color
Meaning
OK
Green
Indicates the current operational state of the DSU/CSU.
ON :
The DSU/CSU is operational and has power.
OFF :
The DSU/CSU is performing a power-up self-test or a
system failure has occurred.
BLINKING :
A software download is in progress.
FAST BLINK :
The carrier-mounted DSU/CSU is currently
selected by the SDCP.
FAIL
Yellow
Indicates a system failure or a self-test.
ON :
A device error/fault is detected or a reset has just
occurred.
OFF :
No system failures are detected.
BLINKING :
A self-test is in progress.
TEST
Yellow
A system test is in progress.
ON :
A loopback or pattern test has been initiated either
locally, by the network, or externally.
OFF :
No tests are active.
Table 3-2.
Network Interface LEDs (1 of 2)
Name
Color
Meaning
SIG
Green
Monitors the signal being received from the network.
ON :
A recoverable signal is being received from the
network.
OFF :
The signal cannot be recovered from the network (a
Loss of Signal condition exists).
OOF
Yellow
Monitors Out Of Frame (OOF) conditions on the received
network signal.
ON :
At least one OOF was detected on the signal during the
sampling period.
OFF :
No OOFs were detected on the signal during the
sampling period.