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10/100BASE-TX Fast Ethernet Switched Ports
Each switched port supports one connection to a LAN segments. Each
segment is an independent shared network in one collision-domain.
The connection can be to either a 10BASE-T or a 100BASE-TX device.
MDI-X and MDI RJ-45 Connectors
MDI-X jack is labeled [X] normally to indicate the jack is designed
with internal crossover function. It allows a connection to an end
station using straight-through UTP cable. MDI RJ-45 connector is
provided for easy uplink via standard straight-through UTP to
other device that supports MDI-X RJ-45 connector. The following
table shows the pin assignments of MDI-X and MDI RJ-45
connector respectively:
PIN# MDI-X Jacks MDI Jack
1 Rx+ Tx+
2 Rx- Tx-
3 Tx+ Rx+
6 Tx- Rx-
4,5,7,8 NC NC
Crossover SW
This push button switch is dedicated for Port #9 RJ-45 jack. When
pushing ON, Port #9 RJ-45 is set to MDI type.
Crossover SW Port #9 RJ-45
OFF MDI-X
ON MDI
100 Fiber Slot
Optional fiber connectivity support for Port #9. This can not be used
with RJ-45 9X jack at the same time. Refer to section 3.3.