DIAGNOSTIC LED(S)
|
LED
| Color
| Status
| Condition
|
RCV
| Green
| On
| DSU is receiving data from network
|
RCV
| Green
| Off
| DSU is not receiving data from network
|
XMT
| Green
| On
| DSU is transmitting data to network
|
XMT
| Green
| Off
| DSU is not transmitting data to network
|
FEI
| Red
| On
| Remote is out of PLCP lock
|
FEI
| Red
| Blinking
| Remote block error detected
|
FEI
| Red
| Off
| Remote PLCP normal
|
NEI
| Red
| On
| Local DSU is out of PLCP lock
|
NEI
| Red
| Blinking
| Local DSU detected a block error
|
NEI
| Red
| Off
| Local DSU PLCP normal
|
DATA
| Green
| On
| Valid data signal detected
|
DATA
| Green
| Blinking
| Network Set, Reset, or Test code detected
|
DATA
| Green
| Off
| No valid signal detected
|
CV
| Red
| On
| Code Violation, Frame Sync, or CRC error detected
|
CV
| Red
| Off
| Error not detected
|
LOS
| Red
| On
| Loss Of Signal condition detected
|
LOS
| Red
| Off
| Loss Of Signal condition not detected
|
OOF
| Red
| On
| Signal is out of frame synchronization
|
OOF
| Red
| Off
| Signal is not out of frame synchronization
|
AIS
| Red
| On
| Alarm Indication Signal condition detected
|
AIS
| Red
| Off
| Alarm Indication Signal condition not detected
|
YEL
| Yellow
| On
| Remote Yellow Alarm condition detected
|
YEL
| Yellow
| Blinking
| Local Yellow Alarm condition detected
|
YEL
| Yellow
| Off
| Yellow Alarm condition not detected
|
PWR
| Green
| On
| Power is on
|
PWR
| Red
| On
| Self-test failed
|
PWR
| Green
| Blinking
| Downloading software
|
PWR
| N/A
| Off
| Power is off
|
LOOP
| Yellow
| On
| Local loopback test in progress
|
LOOP
| Yellow
| Blinking
| Remote loopback test in progress
|
LOOP
| Yellow
| Off
| Loopback test not in progress
|
SEND
| Yellow
| On
| Test code being sent
|
SEND
| Yellow
| Blinking
| Remote loopback test may be in progress but cannot be verified
|
SEND
| Yellow
| Off
| Test code not being sent
|
ALM
| Red
| On
| Alarm condition detected and awaiting user intervention
|
ALM
| Green
| On
| Alarm condition detected; user intervention in progress
|
ALM
| N/A
| Off
| Alarm condition not detected
|