The PoE LEDs are located on the front of the switch. There are four LEDs for models ISW
4GbP, 2GbT, 2-SFP and ISW 4-10/100P, 2-10/100T, 2-SFP; eight LEDs for models ISW 8GbP,
4-SFP+, ISW 8-10/100P, 4-SFP, and ISW 8GbP, 4-SFP; and 24 LEDs on model ISW 24GbP,
4-SFP. The following tables describe the colors and the states for the LEDs.
Table 1. 8-Port PoE LEDs
Color/State
Meaning
Off
No PoE power output.
Solid Green
PoE port is connected to PoE PD device, using the 802.3bt
standard/PoH.
Solid Amber
PoE port is connected to PoE PD device, using the 802.3af/at
standard.
Solid Red
No PoE power delivered due to PoE PD detection failure,
short-circuit, overloading, or over temperature.
Flashing Red
No PoE power delivered due to power management (blinking per 2
second).
Table 2. 24-Port PoE LEDs
Color/State
Meaning
Off
No PoE power output.
Solid Amber
PoE port is connected to PoE PD device. (802.3af/at/bt or
PoH)
Flashing Amber
No PoE power delivered due to PoE PD detection failure,
short-circuit, overloading, over temperature or power
management.
