Paradyne 3150 Operator's Manual page 27

Name Color
OK Green
FAIL Yellow
TEST Yellow
Name Color
SIG Green
OOF Yellow
ALRM Yellow
EER Yellow
3150-A2-GB21-80
Table 3-1
System LEDs
Indicates the current operational state of the CSU.
ON :
The CSU is operational and has power.
OFF :
The 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 CSU is currently selected by the SDCP.
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.
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
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).
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.
Indicates whether an alarm condition exists on the received network signal.
ON : An alarm condition (LOS, LOF, EER, Yellow, AIS) exists on the
received network signal. Use the Device Health and Status
command to determine the alarm type.
OFF : No alarm condition exists on the network interface signal.
Indicates the Excessive Error Rate (EER) has been exceeded on the network interface.
NOTE: This LED is only valid when ESF framing is being used.
ON :
The EER has been exceeded on the network interface.
OFF : The EER has not been exceeded on the network interface.
February 1998
Meaning
Meaning
Operation
3-5