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4
CHAPTER 1
Intel Express 100BASE-T4 Stackable Hub
Physical Description
Front panel
The front panel of the Express Stackable Hub provides twelve
100BASE-T4 ports, an LED matrix (see “LED matrix” later in this
chapter for a description of LEDs), a media adapter slot, and an
expansion slot.
RJ-45 100BASE-T4 ports
The twelve 100BASE-T4 ports with fixed RJ-45 connectors allow you
to connect to 100BASE-T4 network devices. You can use 4-pair
Category 3, 4, or 5 unshielded twisted-pair (UTP) cable.
The maximum cable distance between the port and the attached device
is 100 meters (328 feet), including all patch cables, panels, and
connectors.
The following table lists the pinouts and pin pairings for a
100BASE-T4 hub and a server or workstation.
Workstation or server Hub
RJ-45 port
Media adapter slot
for uplink modules
Expansion slot
for NMM
NOTE
If you include Intel Express
100BASE-TX and 100BASE-T4
Stackable Hubs in the same
stack, make sure you attach
only the appropriate devices
(TX or T4) to each type of
hub.