HP J4868A User Manual - Page 9

LEDs, Introducing the HP Procurve Switch 2124, Switch LEDs, State, Meaning

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Introducing the HP Procurve Switch 2124 Introducing the HP Procurve Switch 2124 Front of the Switch LEDs Table 1-1. Switch LEDs Switch LEDs State Meaning Power On (green) Off The switch is receiving power. The switch is NOT receiving power. Fault (orange) Off Blinking* The normal state; indicates that there are no fault conditions on the switch. An unsupported transceiver has been installed in the transceiver slot. Under this condition, the Port 25 Link LED will also blink simultaneously. On On briefly after the switch is powered on or reset, at the beginning of switch self test. If on for a prolonged time, the switch has a hardware failure, or has failed its self test. See chapter 3, "Troubleshooting" for more information. Link On (green - overlaid with the port Off number) Indicates the port is enabled and receiving a link indication from the connected device. One of these conditions exists: • no active network cable is connected to the port • the port is not receiving link beat (RJ-45 ports), or sufficient light (transceiver port) • for Port 25 (transceiver port), the transceiver has failed Blinking* If the Port 25 Link LED is blinking simultaneously with the Fault LED, it indicates that (Port 25 only) an unsupported transceiver has been installed in the transceiver slot. Mode (green) Displays network activity information, or whether the port is configured for full-duplex operation, or 100 Mbps operation depending on the mode selected. See "LED Mode Select Button and Indicator LEDs" on the next page for more information. LED Mode Act Select indicators FDx (3 green LEDs) 100 Indicates that the port Mode LEDs are displaying network activity information. Indicates that the port Mode LEDs are lit for ports that are in Full Duplex Mode. Indicates that the port Mode LEDs are lit for ports that are operating at 100 Mbps. * The blinking behavior is an on/off cycle once every 1.6 seconds, approximately. 1-3

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1-3
Introducing the HP Procurve Switch 2124
Front of the Switch
Introducing the HP Procurve
Switch 2124
LEDs
Table 1-1.
Switch LEDs
Switch LEDs
State
Meaning
Power
(green)
On
The switch is receiving power.
Off
The switch is NOT receiving power.
Fault
(orange)
Off
The normal state; indicates that there are no fault conditions on the switch.
Blinking*
An unsupported transceiver has been installed in the transceiver slot. Under this
condition, the Port 25 Link LED will also blink simultaneously.
On
On briefly after the switch is powered on or reset, at the beginning of switch self test.
If on for a prolonged time, the switch has a hardware failure, or has failed its self test.
See chapter 3, “Troubleshooting” for more information.
Link
(green –
overlaid with
the port
number)
On
Indicates the port
is enabled and receiving a link indication from the connected
device.
Off
One of these conditions exists:
•
no active network cable is connected to the port
•
the port is not receiving link beat (RJ-45 ports), or sufficient light (transceiver port)
•
for Port 25 (transceiver port), the transceiver has failed
Blinking*
(Port 25 only)
If the Port 25 Link LED is blinking simultaneously with the Fault LED, it indicates that
an unsupported transceiver has been installed in the transceiver slot.
Mode
(green)
Displays network activity information, or whether the port is configured for full-duplex operation, or
100 Mbps operation depending on the mode selected. See “LED Mode Select Button and Indicator
LEDs” on the next page for more information.
LED Mode
Select
indicators
(3 green LEDs)
Act
Indicates that the port Mode LEDs are displaying network activity information.
FDx
Indicates that the port Mode LEDs are lit for ports that are in Full Duplex Mode.
100
Indicates that the port Mode LEDs are lit for ports that are operating at 100 Mbps.
* The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.