30CHAPTER 2: INSTALLING THE SWITCH

 

Table 4

LED colors

 

 

 

 

 

Color

State

 

 

 

 

 

Green

The Switch is powered-up and

 

 

operating normally

 

Yellow

The Switch has failed its Power On Self

 

 

Test. This occurs if any of the ports fail

 

 

during power-up.

 

Off

The Switch is not receiving power.

 

 

 

 

If there is evidence of a problem, see “Solving Problems Indicated by

 

LEDs” on page 31.

 

 

 

Choosing the

All of the ports on the front of the Switch 3300 MM are configured as

Correct Cables

MDIX (cross-over). If you want to make a connection to another MDIX

 

port, you need a cross-overcable. Most of the 10BASE-T and

 

100BASE-TX ports on 3Com devices are MDIX-only. Many ports on

workstations and servers are configured as MDI (straight-through). If you want to make a connection to an MDI port, you need to use a standard straight-throughcable. This is illustrated in Figure 10.

Figure 10 Connecting other devices to the Switch 3300 MM

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Image 30
3Com 16985ua.bk manual Choosing, Correct Cables, Port, you need a cross-over cable. Most of the 10BASE-T, Color State
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