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C H A P T E R 1 Intel Express 100BASE-TX Stackable Hub
4
Front Panel
The front panel of the Express hub provides 12 100BASE-T ports, an
MDI/MDI-X switch, an LED matrix, a media adapter slot, and an
expansion slot.
Pwr StatRPS Col Data %
Expansion Slot
1
1
13
2
14
3
15
4
16
5
17
6
18
7
19
8
20
9
21
10
22
11
23
12
Mstr
Stat Enbl
Stat
24
Port Status
Media Adapter
Management
²1 5 10 15 25 ³30
MDI-X/MDI
100 BASE-TX
Expansion Slot
Media Adapter
1
24365871091211
5895
Intel Express
100BASE-TX Stackable Hub
Technology by
Bay Networks
Front panel of the Express 100BASE-TX stackable hub
RJ-45 100BASE-TX Ports
The front panel of the Express hub provides 12 100BASE-TX ports
with fixed RJ-45 connectors for connectivity to 100BASE-T network
devices. These standard RJ-45 connectors accept Category 5
unshielded twisted pair (UTP) or 100-ohm shielded twisted pair (STP)
cable. The RJ-45 interface consists of an 8-pin connector configured
for MDI-X wiring.
This table provides the pinout information for the standard RJ-45
connector configured for MDI-X wiring, and the pinout information
for port 1 RJ-45 connector when configured for MDI wiring.
Pin # MDI-X signal MDI signal
(port 1)
18
3165.1
1
2
3
4
5
6
7
8
Receive data + (RD+)
Receive data - (RD-)
Transmit data + (TD+)
Not assigned
Not assigned
Transmit data - (TD-)
Not assigned
Not assigned
TD+
TD-
RD+
Not assigned
Not assigned
RD-
Not assigned
Not assigned