3Com 4500G Getting Started Manual page 21

Table 4 Description on the LEDs of the Switch 4500G PWR 24-Port& 48-Port
Ethernet Switch (Continued)
LED Label
10/100/1000 None
BASE-T
Ethernet port
status LED
(continued)
1000 Base None
SFP port
status LED
Switch 4500G PWR 24-Port and 48-Port Indicators
Status
PoE mode Yellow,
(continued) blinking (3 Hz)
OFF
This LED is Green
not
influenced
by the mode
button
Yellow,
blinking (3 Hz)
OFF
Description
POST fails on the port
The port does not supply
power.
The port works at the rate of
1000 Mbps; the LED blinks
quickly when the port is
sending or receiving data.
POST fails on the port.
The port is not connected.
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