3Com 3CR16708-91 Getting Started Guide - Page 14

LEDs, status according to color. For information on using the LEDs for problem

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Page 14 highlights

14 CHAPTER 1: INTRODUCING THE OFFICECONNECT MANAGED SWITCH 9 AND SWITCH 9 FX LEDs Table 4 lists LEDs visible on the front of the Switch, and how to read their status according to color. For information on using the LEDs for problem solving, see "Solving Problems Indicated by LEDs" on page 52. Table 4 LED behavior LED Color Indicates 10BASE-T/100BASE-TX Port Status LEDs Link/ Green Activity Yellow A 100 Mbps link is present. A 10 Mbps link is present. Green flashing There is 100 Mbps activity on the port. Yellow flashing There is 10 Mbps activity on the port. Off No link is present. Duplex Green The port is operating at full duplex Off The port is operating at half duplex, or there is no link. 10BASE-T/100BASE-TX/1000BASE-T (GbE) Port Status LED (Switch 9 only) Link/ Blue Activity Green A 1000 Mbps link is present. A 100 Mbps link is present. Yellow A 10 Mbps link is present. Blue flashing There is 1000 Mbps activity on the port. Green flashing There is 100 Mbps activity on the port. Yellow flashing There is 10 Mbps activity on the port. Off No link is present. Duplex Green The port is operating at full duplex Off The port is operating at half duplex, or there is no link. SFP Module Status LED (Switch 9 FX only) Link/ Green The port has a link. Activity Green flashing There is activity on the port. Off No link is present. Module Green Status The SFP Module is present. The corresponding 100BASE-FX port is disabled. Off No SFP Module has been inserted. The corresponding 100BASE-FX port can be used. 100BASE-FX Port Status LEDs (Switch 9 FX only) Link/ Green The port has a link. Activity Green Flashing There is activity on the port. Off No link is present.

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14
C
HAPTER
1: I
NTRODUCING
THE
O
FFICE
C
ONNECT
M
ANAGED
S
WITCH
9
AND
S
WITCH
9 FX
LEDs
Table 4 lists LEDs visible on the front of the Switch, and how to read their
status according to color. For information on using the LEDs for problem
solving, see “Solving Problems Indicated by LEDs” on page 52.
Table 4
LED behavior
LED
Color
Indicates
10BASE-T/100BASE-TX Port Status LEDs
Link/
Activity
Green
A 100 Mbps link is present.
Yellow
A 10 Mbps link is present.
Green flashing
There is 100 Mbps activity on the port.
Yellow flashing
There is 10 Mbps activity on the port.
Off
No link is present.
Duplex
Green
The port is operating at full duplex
Off
The port is operating at half duplex, or there is no link.
10BASE-T/100BASE-TX/1000BASE-T (GbE) Port Status LED
(Switch 9 only)
Link/
Activity
Blue
A 1000 Mbps link is present.
Green
A 100 Mbps link is present.
Yellow
A 10 Mbps link is present.
Blue flashing
There is 1000 Mbps activity on the port.
Green flashing
There is 100 Mbps activity on the port.
Yellow flashing
There is 10 Mbps activity on the port.
Off
No link is present.
Duplex
Green
The port is operating at full duplex
Off
The port is operating at half duplex, or there is no link.
SFP Module Status LED
(Switch 9 FX only)
Link/
Activity
Green
The port has a link.
Green flashing
There is activity on the port.
Off
No link is present.
Module
Status
Green
The SFP Module is present.
The corresponding 100BASE-FX port is disabled.
Off
No SFP Module has been inserted.
The corresponding 100BASE-FX port can be used.
100BASE-FX Port Status LEDs
(Switch 9 FX only)
Link/
Activity
Green
The port has a link.
Green Flashing
There is activity on the port.
Off
No link is present.