KSwitch D4 MF Managed Fast Ethernet Switch - User Guide, Rev. 1.0
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4.1.3.
Indicator LEDs P1, P2, ALM and Ethernet
The LEDs indicate the normal operation of the switch and in the case of failure may be used for faultfinding.
Figure 5: Indicator LEDs
1
Power and alarm LEDs
2
2x fiber Ethernet port LEDs
3
7x copper RJ45 Ethernet ports with
integrated LEDs
Table 4: Indicator LEDs
LED Name
Indicator /Color Condition
P1/P2
On Green
P1/P2 power line has power
Off
P1/P2 power line disconnect or does not have supply
power
ALM
On Red
Ethernet link fail alarm or power failure alarm occurs
Off
No Ethernet link fail and no power failure alarm
RJ45 Copper
(Link/Act)
On Yellow
Ethernet link up but no traffic is detected
Flashing Yellow
Ethernet link up and there is traffic detected
Off
Ethernet link down
Fiber SFP
(Link/Act)
On Green
Ethernet link up
Flashing Yellow
Ethernet link up and there is traffic detected
Off
Ethernet link down
1
2
3