LED Location
Status
Description
Off
No carrier signal is received.
LP/AL Rear
panel
Solid green
The EPRI0 port is in loopback state.
Flashing green
One of the following alarms is generated
—
AIS, LFA,
or RAI.
Off
No loopback or alarm has occurred.
MSR20-12-W
Table 11
MSR20-12-W LED description
LED Location
Status
Description
PWR Front
panel
Solid green
The power supply is connected.
Off
The power supply is not connected.
SYS Front
panel
Fast flashing
(green)
The system is starting up.
Slow flashing
(green)
The system is operating properly.
Fast flashing
(yellow)
A problem has occurred to the system.
Off
The system has failed to operate properly.
ETH Front
panel
Solid green
A link is present.
Flashing green
The port is transmitting or receiving data.
Off
No link is present.
WLAN Front
panel
Slow flashing
(green)
The system is operating properly.
Fast flashing
(green)
The device is working under a large amount of traffic.
Off
The system is operating abnormally.
LINK/ACT Rear
panel
Solid green
An EPRI0 link is present.
Flashing green
Data is being transmitted or received.
Off
No carrier signal is received.
LP/AL Rear
panel
Solid green
The EPRI0 port is in loopback state.
Flashing green
One of the following alarms is generated
—
AIS, LFA,
or RAI.
Off
No loopback or alarm has occurred.
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