Canton 3C16476CS Manual De Usuario

If POST fails, try the following:

■

Power off the Switch, and then power it on again. 
Check the Power LED and see if POST was 
successfully completed.

■

Reset the Switch. See 

 on 

. 

If these do not resolve the issue:

■

Check the 3Com Knowledgebase for a solution. To 
visit the 3Com Knowledgebase Web site, start your 
Web browser, and then enter 

■

Contact your 3Com network supplier for 
assistance.

To connect a network device to the Switch, use Cate-
gory 5 unshielded or shielded (screened) 100 Ohm TP 
cables (or Category 3 cables for 10 Mbps connec-
tions). 

For optimal connections, ensure that the cable length 
for each connection is not longer than 100 m (328 ft). 

Figure 3   Connecting Devices to the Switch

To connect a device to the Switch:

Connect one end of the cable to an RJ-45 port on the 
Switch.

Connect the other end to the appropriate RJ-45 port 
on the connecting device.

For 1000BASE-T operation, 3Com recommends using 
Category 5e or 6 cables.

Yellow

Power-on self-test or loopback test failed. 
This can happen if a ports or ports fail 
when the Switch was powered on.

Off

The unit is not receiving power:

■

Verify that the power cord is connected 
correctly, and then try powering on the 
Switch again

■

If the Switch still does not operate, con-
tact your 3Com network supplier

Baseline 10/100 switch

Endstations on switched
100 Mbps connections

Endstations on switched
100 Mbps connections

Baseline 10/100 switch

Baseline Switch 2250 Plus

1000 Mbps link

10 or 100 Mbps link

Server on switched
1000 Mbps
connection

Endstations
on switched
10 or 100 Mbps
connection

1000 Mbps copper
or fiber connection
to backbone or
server/workstation