Cisco PIX Security Appliance Hardware Installation Guide, Version 7.2
Cable Pinouts

Table Of Contents

Cable Pinouts

10BaseT and 100BaseTX Connectors

Console Port (RJ-45)

RJ-45 to DB-9 or DB-25 Serial Cable

Failover Cable Pinouts


Cable Pinouts


The appendix provides the following pinout information:

10BaseT and 100BaseTX Connectors

Console Port (RJ-45)

RJ-45 to DB-9 or DB-25 Serial Cable

Failover Cable Pinouts

10BaseT and 100BaseTX Connectors

The 10BaseT and 100BaseTX ports use standard RJ-45 connectors. The 10BaseT and 100BaseTX ports have their transmit (TD) and receive (RD) pairs internally crossed.

Figure A-1 shows the 10BaseT and the 100BaseTX connector (RJ-45).

Figure A-1 RJ-45 10BaseT and 100BaseTX Connector

Table A-1 shows the connector pinout.

Table A-1 10BaseT and 100BaseTX Connector (RJ-45) Pinouts

Pin
Description

1

TX+

2

TX-

3

RX+

4

-

5

-

6

RX-

7

-

8

-


Console Port (RJ-45)

Cisco products use the following three types of RJ-45 cables:

Straight-through

Crossover

Rolled


Note Cisco does not provide these cables; they are widely available from other sources.


Figure A-2 shows the RJ 45 cable.

Figure A-2 RJ-45 Cable

To identify the RJ-45 cable type, hold the two ends of the cable next to each other so you can see the colored wires inside the ends, as shown in Figure A-3.

Figure A-3 RJ-45 Cable Identification

Examine the sequence of colored wires to determine the type of RJ-45 cable, as follows:

Straight-through—The colored wires are in the same sequence at both ends of the cable (see Table A-2).

Crossover—The first (far left) colored wire at one end of the cable is the third colored wire at the other end of the cable (see Table A-3).

Rolled—The colored wires at one end of the cable are in the reverse sequence of the colored wires at the other end of the cable (see Table A-4).

Table A-2 RJ-45 Straight-Through (Ethernet) Cable Pinouts

Signal
Pin
Pin
Pin

TX+

1

1

TX+

TX-

2

2

TX-

RX+

3

3

RX+

-

4

4

-

-

5

5

-

RX-

6

6

RX-

-

7

7

-

-

8

8

-


Table A-3 RJ-45 Crossover (Ethernet) Cable Pinouts

Signal
Pin
Pin
Pin

TX+

1

3

RX+

TX-

2

6

RX-

RX+

3

1

TX+

-

4

4

-

-

5

5

-

RX-

6

2

TX-

-

7

7

-

-

8

8

-


Table A-4 RJ-45 Rolled (Console) Cable Pinouts  

Signal
Pin
Pin
Pin

-

1

8

-

-

2

7

-

-

3

6

-

-

4

5

-

-

5

4

-

-

6

3

-

-

7

2

-

-

8

1

-


RJ-45 to DB-9 or DB-25 Serial Cable

Table A-5 lists the cable pinouts for RJ-45 to DB-9 or DB-25.

Table A-5 Cable Pinouts for RJ-45 to DB-9 or DB-25

Signal
RJ-45 Pin
DB-9 Pin
DB-25 Pin

RTS

8

8

5

DTR

7

6

6

TxD

6

2

3

GND

5

5

7

GND

4

5

7

RxD

3

3

2

DSR

2

4

20

CTS

1

7

4


Failover Cable Pinouts

Figure A-4 shows the pinouts of a crossover cable, should you use this with the Stateful Failover dedicated interface.

Figure A-4 Stateful Failover Dedicated Interface Crossover Cable Pinouts

Should you need to test the cable you received, the pinouts are shown in Figure A-5.

Figure A-5 Failover Serial Cable Pinouts


Note Pins 11 and 12 on the primary side are looped.