C H A P T E R 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.

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.

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

4

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Intel manual Physical Description, Front panel, RJ-45 100BASE-T4 ports