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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.
2
3
4
Media Adapter
MDI-X/MDI
1
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
1
8
1
2
3
4
3165.1
5
6
7
8
5
6
7
8
9
10
11
12
100 BASE-TX
Expansion Slot
Receive data + (RD+)
Receive data - (RD-)
Transmit data + (TD+)
Not assigned
Not assigned
Transmit data - (TD-)
Not assigned
Not assigned
Intel Express
100BASE-TX Stackable Hub
Pwr
Stat
RPS
Col
Data %
²1
5
10
15
25
³30
Technology by
Media Adapter
Expansion Slot
Stat
1
Bay Networks
Port Status
Management
Stat
Mstr
Enbl
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
5895
MDI signal
(port 1)
TD+
TD-
RD+
Not assigned
Not assigned
RD-
Not assigned
Not assigned
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