3Com 3CBLSF50 User Guide - Page 14

BASE-T Mode, Link/Activity, Meaning, SFP/Duplex, SFP Mode

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14 INTRODUCING THE BASELINE SWITCH 1000BASE-T Mode Table 3 1000BASE-T Link/Activity Status LEDs Link/Activity Meaning Green The link is operating at 1000 Mbps. Yellow The link is operating at 10 or 100 Mbps. Flashing Green Packets are being received or transmitted on the port at 1000 Mbps. Flashing Yellow Packets are being received or transmitted on the port at 10 or 100 Mbps. Off The link has not been established, nothing is connected to the port, or there is a problem: ■ Check that the attached device is powered on. ■ Check that the cable is the correct type, is not faulty, and is inserted correctly. If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your supplier for further advice. Table 4 1000BASE-T SFP/Duplex Status LEDs SFP/Duplex Meaning Yellow The link is operating at full duplex. Off The link is operating at half duplex, or no link is established. 1000BASE-T only operates in full-duplex mode. 10/100BASE-TX can operate in half- or full-duplex mode. SFP Mode Table 5 SFP Link/Activity Status LEDs Link/Activity Meaning Green The link is operating at 1000 Mbps. Flashing Green Packets are being received or transmitted on the port at 1000 Mbps. Off The link has not been established; Either nothing is connected to the port, or there is a problem: ■ Check that the attached device is powered on. ■ Check that the SFP module is inserted correctly. ■ Check that the fiber cable is the correct type, is not faulty, and is inserted correctly. ■ Ensure that the transmit (TX) and receive (RX) fiber cables are not swapped. TX on the remote device must be connected to RX on the local device; likewise, RX on the remote device must be connected to TX on the local device. If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your supplier for further advice.

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14
I
NTRODUCING
THE
B
ASELINE
S
WITCH
1000BASE-T Mode
Table 3
1000BASE-T Link/Activity Status LEDs
Table 4
1000BASE-T SFP/Duplex Status LEDs
1000BASE-T only operates in full-duplex mode.
10/100BASE-TX can operate in half- or full-duplex
mode.
SFP Mode
Table 5
SFP Link/Activity Status LEDs
Link/Activity
Meaning
Green
The link is operating at 1000 Mbps.
Yellow
The link is operating at 10 or 100 Mbps.
Flashing Green
Packets are being received or
transmitted on the port at 1000 Mbps.
Flashing Yellow
Packets are being received or
transmitted on the port at 10 or 100
Mbps.
Off
The link has not been established,
nothing is connected to the port, or
there is a problem:
■
Check that the attached device is
powered on.
■
Check that the cable is the correct
type, is not faulty, and is inserted
correctly.
If these checks do not identify the cause
of the problem, it may be that the unit
or the device connected to the port is
faulty. Contact your supplier for further
advice.
SFP/Duplex
Meaning
Yellow
The link is operating at full duplex.
Off
The link is operating at half duplex, or
no link is established.
Link/Activity
Meaning
Green
The link is operating at 1000 Mbps.
Flashing Green
Packets are being received or
transmitted on the port at 1000 Mbps.
Off
The link has not been established; Either
nothing is connected to the port, or
there is a problem:
■
Check that the attached device is
powered on.
■
Check that the SFP module is inserted
correctly.
■
Check that the fiber cable is the
correct type, is not faulty, and is
inserted correctly.
■
Ensure that the transmit (TX) and
receive (RX) fiber cables are not
swapped. TX on the remote device
must be connected to RX on the local
device; likewise, RX on the remote
device must be connected to TX on
the local device.
If these checks do not identify the cause
of the problem, it may be that the unit
or the device connected to the port is
faulty. Contact your supplier for further
advice.