7-9
Catalyst 3650 Switch Hardware Installation Guide
OL-29734-01
Appendix 7 Connector and Cable Specifications
Cable and Adapter Specifications
Two Twisted-Pair Cable Pinouts
Figure 7-16
Two Twisted-Pair Straight-Through Cable Schematic
Figure 7-17
Two Twisted-Pair Crossover Cable Schematic
Identifying a Crossover Cable
To identify a crossover cable, hold the cable ends side-by-side, with the tab at the back. The wire
connected to the pin on the outside of the left plug should be the same color as the wire connected to the
pin on the outside of the right plug. (See
Figure 7-18
.)
Figure 7-18
Identifying a Crossover Cable
Console Port Adapter Pinouts
The console port uses an 8-pin RJ-45 connector, which is described in
Table 7-2
and
Table 7-3
. If you
did not order a console cable, you need to provide an RJ-45-to-DB-9 adapter cable to connect the switch
console port to a PC console port. You need to provide an RF-45-to-DB-25 female DTE adapter if you
S
witch
3
TD+
6 TD–
1 RD+
2 RD–
Router or PC
3
RD+
6 RD–
1 TD+
2 TD–
H557
8
S
witch
3
TD+
6 TD–
1 RD+
2 RD–
S
witch
3
TD+
6 TD–
1 RD+
2 RD–
H5579
Pin 1
H106
3
2
Pin
8
Pin 1 on one connector
a
nd
pin
8
on the other connector
s
hould be the
sa
me color.
