CentreCOM
AT-3012T Multiport Repeater
3
10BASE-T UTP Cabling
Hub to MAU Wiring
The most typical Unshielded Twisted Pair (UTP) cable for the AT-3012T will
be repeated UTP Hub to UTP transceiver Data Terminal Equipment (DTE)
end. The cable pinout for this configuration is illustrated in Figure 2 below.
Hub to Hub
UTP Hubs may be cascaded or linked together using UTP wiring. If
cascading of AT-3012T UTP Hubs is desired, use the UTP cable pin-out, as
illustrated in Figure 3.
Figure 2:
UTP MAU RJ45 Pin
Diagram
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
TD +
TD -
RD +
Not Used
TD +
TD -
RD +
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
RD -
RD -
UTP MAU
RJ45 PIN
UTP HUB
RJ45 PIN
Figure 3:
UTP Hub RJ45 Pin
Diagram
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
TD +
TD -
RD +
Not Used
TD +
TD -
RD +
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
RD -
RD -
UTP MAU
RJ45 PIN
UTP MAU
RJ45 PIN
