Lantronix
SISTP1040-551-LRT Install Guide
33841 Rev. A
20
4 Troubleshooting
LED Status Indicators
LED Name
Condition/Color
Meaning
P1
On Green
Power is applied/supplied to Power 1.
Off
No power is applied/supplied to Power 1
P2
On Green
Power is applied/supplied to Power 2.
Off
No power is applied/supplied to Power 2.
ALM
(Alarm)
On Red
Power failure alarm occurs.
Off
No power failure alarm.
1
,
2
,
3
,
4
Copper port
Link/Act
On Green
Ethernet link up but no traffic is detected.
Flashing Green Ethernet link up and there is traffic detected.
Off
Ethernet link down.
1G
Copper port Speed
On Yellow
A 1000Mbps connection is detected.
Off
No link, a 10Mbps or 100 Mbps connection is detected.
L/A
SFP port Link/Act
On Green
Ethernet link up.
Flashing Green Ethernet link up and there is traffic detected.
Off
Ethernet link down.
1G
SFP port Speed
On Yellow
SFP port speed 1000 Mbps connection is detected.
Off
No link or a SFP port speed 100Mbps connection is detected.
1
~
5
PoE
On Green
PoE port is connected to PoE PD device, using the 802.3bt standard.
On Amber
PoE port is connected to PoE PD device, using the 802.3af/at standard.
On Red
No PoE power delivered due to PoE PD detection failure, short circuit,
overloading, or over temperature.
Off
No PoE power output