AT-3624TR/3648TR Installation Manual - Allied Telesis

UTP Reference
UTP Hub-to-MAU
Wiring
Figure 47 shows a UTP cable with an RJ45 connector. For a 10BASE-T link
between a hub and a Medium Attachment Unit (MAU) or Network Interface
Controller (NIC), the cable is wired straight-through. That is, an RJ45
receptacle at the hub would wire pin-to-pin to the RJ45 receptacle at the
MAU, as shown in Figure 48.
Figure 47: RJ45
Pin 1
1
A
Not Used
8
8
Not Used
B
Figure 48: Hub-to-MAU
Wiring (A) Usable
and (B) Unusable
Not Used
Not Used
7
8
This cable will not work for 10BASE-T.
Note that 3 and 6 are twisted, but are not a pair.
RJ45 Pin
1
2
3
4
5
6
7
8
TD+
RD-
TD-
RD+
Not Used
Not Used
RJ45 Pin
TD+ 1
TD- 2
RD+ 3
Not Used
Not Used
RD-
4
5
6
Not Used 7
Pair twisted as per Level 3, 4 or 5 cable.
RJ45 Pin
1
1 TD+
2 TD-
3 RD+
1
4 Not Used
5 Not Used
6 RD-
7 Not Used
RJ45 Pin
TD+ 1
TD- 2
RD+ 3
Not Used
Not Used
4
5
RD- 6
Not Used
Not Used
48