3Com SuperStack 3 Switch 4400 Series Getting Started Manual page 33

Table 7 Cables required to connect the Switch 4400 to other devices if
auto-negotiation is disabled
Cross-over Cable
Switch to Switch
(MDIX to MDIX)
Switch to Hub
(MDIX to MDIX)
Switch to PC (NIC)
(MDIX to MDI)
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.
The Power-up Sequence
Straight-through Cable
✓
✓
✕
33
✕
✕
✓