
KSwitch D3 Unmanaged Fast Ethernet Switch - Preliminary User Guide, Rev. 0.9
// 21
4.1.3.
Indicator LEDs (P1, P2, ALM and Ethernet)
The indicator LEDs show the normal operation of the switch and in the case of failure may be used for faultfinding.
The indicator LEDs are contained within the copper RJ45 connectors, as separate Link/Activity LEDs or as
power/alarm indicator LEDs.
Figure 5: Indicator LED (10-port and 16-port)
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
Power failure alarm occurs
Off
No power failure alarm
RJ45 Copper/Fiber
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
RJ45 Copper /Fiber
Speed
On Yellow
100Mbps connection detected
Off
No link or 10 Mbps connection is detected