D-Link DES-2218 - Manual (Page 71)

DES-2218 Ethernet Switch User’s Guide
Cables and Connectors
59
Crossover Cable
When cascading or connecting the switch to a hub, bridge, or another switch
through the UTP port, a modified crossover cable is necessary. With a
crossover cable, two pairs of wires are switched at one connector end. Carry
out the following steps to create a customized, crossover twisted-pair cable:
1. Leave one end of the cable as is, with the RJ-45 connector intact. The
wiring at just one end of the cable needs to be modified.
2. At the other end of the cable, connect wires 1 and 2 to contacts 3 and
6 respectively. Likewise, connect wires 3 and 6 to contacts 1 and 2.
Refer to the following diagram:
RD+ RD+ 1 1
3 3
6
6
TD+ TD+
RD-
RD-
TD-
TD-
2
2
Hub (MDI-X) Switch (MDI-X)
Crossover Cable
MII Connector
The MII (Media-Independent Interface) is a standard 40-pin connector that
you can use to connect other types of 100Mbps network media to your DES-
2218. Using a transceiver connected to the MII port on the rear panel of
your switch, you can connect the switch to a 100BASE-FX or 100BASE-T4
link.
This appendix shows the pin assignments for the MII connector, which is
specified in the IEEE 802.3u Fast Ethernet standard.