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18 CHAPTER 1: PRODUCT INTRODUCTION
Switch 4210 Family
Front Panel LEDs
Power LED
Table 6 describes the power LED on the Switch 4210.
Port LED
Table 7 describes the 10/100Base-TX autosensing port’s Link/Act LED.
Table 8 describes the Speed LED on the 10/100Base-TX port.
For a description of the Link/Act LED of the Combo port, see Table 7. When the
port is connected correctly, the Speed LED indicates the operating speeds of the
Combo port, as shown in Table 9.
Table 6 The power LED on the Switch 4210
LED Mark on the panel Status Description
Power LED Power ON The switch is powered on.
OFF The switch is powered off.
Table 7 The Link/Act LED on the 3Com Switch 4210
LED Status Description
Link/Act LED (green) ON The port is connected properly.
BLINKING The port is in the active state and there is
traffic on the port.
OFF The port is not connected or is incorrectly
connected.
Table 8 The 10/100Base-TX port Speed LED on the Switch 4210
LED Status Description
10/100Base-TX autosensing
port Speed LED (green)
ON The port is operating at 100 Mbps.
OFF The port is operating at 10 Mbps.
Table 9 The Combo port Speed LED on the Switch 4210
LED Operating port Status Description
Combo port
Speed LED
(green)
100/1000Base-X
SFP port
Connected
to a 1000
Mbps optical
module
ON The port is operating at
1000 Mbps.
Connected
to a 100
Mbps optical
module
OFF The port is operating at
100 Mbps.
10/100/1000Base-T autosensing
port
ON The port is operating at
1000 Mbps.
OFF The port is operating at
10/100 Mbps.