KTI Networks 10BASE-T - Manual (Page 13)

RJ-45 Connectors
Each of Port #1 to Port #7 provides one RJ-45 connector, which are
implemented as MDI-X jack. An MDI-X jack is designed with
internal crossover function. The function allows a connection to a
computer using straight-through UTP cable. The Port #8 provides
one MDI-X RJ-45 connector and one MDI-I RJ-45 connector. Only
one connector can be used at the same time. The pin definitions for
MDI-X jack and MDI-I jack are as follows:
PIN# MDI-X Jack MDI-I Jack
1 Rx+ Tx+
2 Rx- Tx-
3 Tx+ Rx+
6 Tx- Rx-
4,5,7,8 NC NC
UTP Cables
For connecting to a 10BASE-T Ethernet device, a 2-pair Category 3,
4, or 5 UTP cable can be used. For connecting to a 100BASE-TX Fast
Ethernet device, only 2-pair Category 5 UTP cable can be used. With
different wiring, two types of the UTP cables are defined as follows:
8