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Choosing the Correct Cables 31
If there is evidence of a problem, see “Solving Problems Indicated by
LEDs” on page 32.
Choosing the
Correct Cables
All of the ports on the front of the Switch 1100 are configured as MDIX
(cross-over). If you want to make a connection to another MDIX port, you
need a
cross-over
cable. 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-through
cable. This is
illustrated in Figure 11.
Figure 11
Connecting other devices to the Switch 1100
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.
16950ua.bk Page 31 Thursday, August 27, 1998 11:55 AM