Rollover Cable Rj-45 To Db-9 Adapter (For Connecting To A Pc - Cisco 4948 - Catalyst Switch Installation Manual
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- Datasheet (18 pages) ,
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Appendix B
Transceiver, Chassis Connectors, and Cable and Adapter Specifications
You can identify a rollover cable by comparing the two ends of the cable. Holding the cables 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
cable was purchased from Cisco Systems, pin 1 will be white on one connector, and pin 8 will be white
on the other. (A rollover cable reverses pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5.)
Figure B-5
Identifying a Rollover Cable
Pin 1
Rollover Cable RJ-45 to DB-9 Adapter (For Connecting to a PC)
Use an RJ-45-to-RJ-45 rollover cable and the RJ-45-to-DB-9 female DTE adapter (labeled Terminal) to
connect the console port to a PC running terminal emulation software.
the asynchronous serial console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-9 female
DTE adapter.
Table B-16
Console Port
Signal
RTS
DTR
TxD
GND
GND
RxD
DSR
CTS
1. Pin 1 is connected internally to Pin 8.
OL-21561-02
Pin 1 and pin 8
should be the
same color
Pin 8
Port Mode 1 Signaling and Pinouts (DB-9 Adapter)
RJ-45-to-RJ-45 Rollover Cable
RJ-45 Pin
RJ-45 Pin
1
1
8
2
7
3
6
4
5
5
4
6
3
7
2
1
8
1
RJ-45-to-DB-9
Terminal Adapter
DB-9 Pin
8
6
2
5
5
3
4
7
Catalyst 4948E an Catalyst 4948E-F Switch Installation Guide
Cables and Adapters
Figure
B-5.) If your
Table B-16
lists the pinouts for
Console
Device
Signal
CTS
DSR
RxD
GND
GND
TxD
DTR
RTS
B-13
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