D-Link DE-1824EI - Crossover Cable

10BASE-T Stackable Hubs
D-2 Cables and Connectors
2 RD- (receive) TD- (transmit)
3 TD+ (transmit) RD+ (receive)
4 Not used
5 Not used
6 TD- (transmit) RD- (receive)
7 Not used
8 Not used
TD+
RD+
1
1
3
3
6
6
RD+
TD+
TD-
RD-
RD-
TD-
2
2
Wo
r
kstation
(
MDI
)
Hub
(
MDI-
X
)
Figure D-2 Straight-through Cable
Crossover Cable
When cascading or connecting the hub to another switch, bridge, or hub
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
)
Hub
(
MDI-
X
)
Figure D-3 Crossover Cable