3. Operation
3-6
February 2001
3160-A2-GB21-90
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
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.
ALRM
Yellow
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.
EER
Yellow
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.
Содержание 3160-A3
Страница 16: ...About This Guide x February 2001 3160 A2 GB21 90...
Страница 24: ...1 Introduction 1 8 February 2001 3160 A2 GB21 90...
Страница 100: ...3 Operation 3 66 February 2001 3160 A2 GB21 90...
Страница 142: ...A Front Panel Menu A 2 February 2001 3160 A2 GB21 90...
Страница 198: ...C Configuration Options C 54 February 2001 3160 A2 GB21 90...
Страница 246: ...E SNMP MIB Objects E 32 February 2001 3160 A2 GB21 90...
Страница 280: ...H Asynchronous Terminal Operation H 24 February 2001 3160 A2 GB21 90...
Страница 282: ...I Equipment List I 2 February 2001 3160 A2 GB21 90...