28 C
HAPTER
2: I
NSTALLING
THE
S
WITCH
Ta b l e 8 Cables required to connect the Switch 4400 to other devices if
auto-negotiation is disabled
CAUTION:
If you want to install the Switch using a Category 5E or
Category 6 cable, 3Com recommends that you briefly connect the cable
to a grounded port before connecting network equipment. If you do not,
the cable’s Electrostatic Discharge (ESD) may damage the Switch’s port.
You can create a grounded port by connecting all wires at one end of a
UTP cable to an earth ground point, and the other end to a female RJ-45
connector located, for example, on a Switch rack or patch panel. The
RJ-45 connector is now a grounded port.
Cross-over Cable Straight-through Cable
Switch to Switch
(MDIX to MDIX)
✓
✕
Switch to Hub
(MDIX to MDIX)
✓
✕
Switch to PC (NIC)
(MDIX to MDI)
✕
✓
DUA1720-3AAA03_online.book Page 28 Monday, March 25, 2002 10:48 AM
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