HP OfficeConnect 1820 8G Installation And Getting Started Manual page 9

LED State
Power (green) On
Blinking*
Off
Fault/Locator On
(orange)
Blinking**
Blinking***
Off
Link/Act(green) On
Off
Blinking
SpdMode - Spd‡ On
(green)
Flashing
Off
Mode - PoE‡ On
(green)
Blinking**
* The blinking behavior is a 6 second on/off cycle; 5 seconds on, 1 second off.
** The blinking behavior is a 2 second on/off cycle; 1 second on, 1 second off.
*** The blinking behavior is a 4 second on/off cycle; 3 seconds on, 1 second off.
‡ (1820 PoE+ switches only) Press the Mode button in for PoE mode, leave the Mode button out for Spd
mode.
Meaning
The switch is receiving power.
(1820 8G only) Power is available on the PoE In port (Port 1).
The switch is NOT receiving power.
On briefly after the switch is powered on or reset, at the beginning of
switch self test. If the LED remains on, it indicates a detected hardware
failure during the self test.
A fault has occurred on the switch or one of the switch ports. The Link LED
for the port with the fault will blink simultaneously.
The LED is used to locate a specific switch in an area full of switches. The
LED blinks for 30 minutes when activated through the switch software.
The normal state; indicates that there are no fault conditions on the switch.
The port is enabled and receiving a link indication from the connected
device.
One of these condition exists:
• no active network cable is connected to the port
• the port is not receiving link beat or sufficient light
• Green Mode has been enabled.
Indicates that there is network activity on the port.If the Link/Act LED is
blinking simultaneously with the Fault/Locator LED, it indicates a fault on
the port. The blinking behavior (1 second on, 1 second off) is the same as
the Fault/Locator LED.
Indicates the port is operating at 1000 Mbps.
Indicates the port is operating at 100 Mbps.
Indicates the port is operating at 10 Mbps.
Indicates the Port LEDs are lit for ports that are providing PoE power to the
connected device.
There is an oversubscription condition (not enough PoE power available)
or the port has experienced a fault condition for PoE delivery.
Switch overview 9