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HP JG221A Installation Manual: Leds On The Poe Switches

A3100 v2 switch series a3100-8 v2 si switch, a3100-16 v2 si switch, a3100-24 v2 si switch, a3100-8 v2 ei switch, a3100-16 v2 ei switch, a3100-24 v2 ei switch, a3100-8-poe v2 ei switch, a3100-16-poe v2 ei switch, a3100-24-poe v2 ei switch.
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LED

LEDs on the PoE switches

Power LED
The power LED shows the power supplying status on the switch.
Table 23 Power LED on the PoE switches
LED
PWR
Port mode LEDs
The A/L and D/S port mode LEDs on the PoE switches show the type of information that the 10/100Base-TX
port LEDs are displaying as in
of displayed port information.
Table 24 Port mode LEDs on the PoE switches
LED
A/L
D/S
NOTE:
The A/L LED and the D/S LED do not light at the same time.
When the switch is powered on, the 10/100Base-TX port LEDs display port active and link status
information, and the A/L LEDs light. If you press the Mode button, the D/S LED lights and the A/L LED
goes off; 45 seconds later, the D/S LED goes off and the A/L LED automatically lights.
10/100Base-TX port LEDs
Each 10/100Base-TX port on a PoE switch has one yellow LED at top left and one green LED at top right to
show port operating status and activities. You can use the port LED mode switching button to change the type
of displayed port information, and use the port mode LEDs to identify the type of information the port LEDs
are displaying.
Active port
100 Mbps SFP
transceiver module
10/100/1000Base-T Ethernet port
Status
Steady green
Off
Table
24. You can use the port LED mode switching button to change the type
Status
Steady green
Steady green
Status
Off
Steady green
Off
Description
The switch is powered on.
The switch is powered off or has a power
supply problem.
Description
The 10/100Base-TX port LEDs are displaying port active and
link status.
The 10/100Base-TX port LEDs are displaying duplex mode
and port rate.
48
Description
The port is operating at 100
Mbps, or no link is present on
the port.
The port is operating at 1000
Mbps.
The port is operating at
10/100 Mbps, or no link is
present on the port.

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