Cisco DistributedDirector 2500 Series Install and Config Guide
Cabling Specifications
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Cable Specifications

Table Of Contents

Cable Specifications

Ethernet Cable Assembly and Pinouts

Token Ring Port Pinouts

Console and Auxiliary Port Signals and Pinouts

Identifying a Roll-Over Cable

Console Port Signals and Pinouts

Auxiliary Port Signals and Pinouts


Cable Specifications


This appendix provides the following pinout information:

Ethernet Cable Assembly and Pinouts

Token Ring Port Pinouts

Console and Auxiliary Port Signals and Pinouts


Note   All pins not listed in the tables in this appendix are not connected.


Ethernet Cable Assembly and Pinouts

This section describes the pinouts for the Ethernet AUI ports and cables.

Figure B-1 shows an Ethernet AUI cable assembly, and Table B-1 lists the cable pinouts.

Figure B-1 Ethernet (AUI) Cable Assembly

Table B-1 Ethernet (AUI) Cable Pinouts (DB-15) 

Pin
Ethernet Circuit
Signal

3

DO-A

Data Out Circuit A

10

DO-B

Data Out Circuit B

11

DO-S

Data Out Circuit Shield

5

DI-A

Data In Circuit A

12

DI-B

Data In Circuit B

4

DI-S

Data In Circuit Shield

2

CI-A

Control In Circuit A

9

CI-B

Control In Circuit B

1

CI-S

Control In Circuit Shield

6

VC

Voltage Common

13

VP

Voltage Plus

14

VS

Voltage Shield (L25 and M25)

Shell

PG

Protective Ground


Token Ring Port Pinouts

lists the Token Ring port pinouts. Use a Token Ring lobe cable (not included) to connect the Token Ring port to a MAU.

Table B-2 Token Ring Port (DB-9) Pinouts 

9 Pin 1
Signal

1

Receive

3

+5V (600 mA maximum)

5

Transmit

6

Receive

9

Transmit

1 Pins 2, 4, 7, and 8 are ground.


Console and Auxiliary Port Signals and Pinouts

Your Director comes with a console and auxiliary cable kit, which contains the cable and adapters you need to connect a console (an ASCII terminal or PC running terminal emulation software) or modem to your Director. The console and auxiliary cable kit includes the following items:

RJ-45-to-RJ-45 roll-over cable. (See the next section, "Identifying a Roll-Over Cable," for more information.)

RJ-45-to-DB-9 female DTE adapter (labeled Terminal).

RJ-45-to-DB-25 female DTE adapter (labeled Terminal).

RJ-45-to-DB-25 male DCE adapter (labeled Modem).

For console connections, proceed to the section "Console Port Signals and Pinouts" later in this appendix; for modem connections, proceed to the section "Auxiliary Port Signals and Pinouts" later in this appendix.

Identifying a Roll-Over Cable

You can identify a roll-over cable by comparing the two modular 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 .) If your cable came from Cisco Systems, pin 1 will be white on one connector, and pin 8 will be white on the other (a roll-over cable reverses pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5).

Figure B-2 Identifying a Roll-Over Cable

Console Port Signals and Pinouts

Use the RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-9 female DTE adapter (labeled Terminal) to connect the console port to a PC running terminal emulation software. shows how to connect the console port to a PC. lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-9 female DTE adapter (labeled Terminal).

Figure B-3 Connecting the Console Port to a PC

Table B-3 Console Port Signaling and Cabling Using a DB-9 Adapter 

Console
Port (DTE)
RJ-45-to-RJ-45
Roll-Over Cable
RJ-45-to-DB-9
Terminal Adapter
Console
Device
Signal
RJ-45 Pin
RJ-45 Pin
DB-9 Pin
Signal

RTS

11

8

8

CTS

DTR

2

7

6

DSR

TxD

3

6

2

RxD

GND

4

5

5

GND

GND

5

4

5

GND

RxD

6

3

3

TxD

DSR

7

3

4

DTR

CTS

81

1

7

RTS

1 Pin 1 is connected internally to pin 8.


Use the RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-25 female DTE adapter (labeled Terminal) to connect the console port to a terminal. shows how to connect the console port to a terminal. lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-25 female DTE adapter (labeled Terminal).

Figure B-4 Connecting the Console Port to a Terminal

Table B-4 Console Port Signaling and Cabling Using a DB-25 Adapter 

Console
Port (DTE) 1
RJ-45-to-RJ-45
Roll-Over Cable
RJ-45-to-DB-25
Terminal Adapter
Console
Device
Signal
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal

RTS

12

8

5

CTS

DTR

2

7

6

DSR

TxD

3

6

3

RxD

GND

4

5

7

GND

GND

5

4

7

GND

RxD

6

3

2

TxD

DSR

7

3

20

DTR

CTS

81

1

4

RTS

1 You can use the same cabling to connect a console to the auxiliary port.

2 Pin 1 is connected internally to pin 8.


Auxiliary Port Signals and Pinouts

Use the RJ-45-to-RJ-45 roll-over cable and RJ-45-to-DB-25 male DCE adapter (labeled Modem) to connect the auxiliary port to a modem. shows how to connect the auxiliary port to a modem. lists the pinouts for the asynchronous serial auxiliary port, the RJ-45-to-RJ-45 roll-over cable, and the RJ-45-to-DB-25 male DCE adapter (labeled Modem).

Figure B-5 Connecting the Auxiliary Port to a Modem

Table B-5 Auxiliary Port Signaling and Cabling Using a DB-25 Adapter 

AUX Port
(DTE)
RJ-45-to-RJ-45
Roll-Over Cable
RJ-45-to-DB-25
Modem Adapter
Modem
Signal
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal

RTS

11

8

4

RTS

DTR

2

7

20

DTR

TxD

3

6

2

TxD

GND

4

5

7

GND

GND

5

4

7

GND

RxD

6

3

3

RxD

DSR

7

3

8

DCD

CTS

81

1

5

CTS

1 Pin 1 is connected internally to pin 8.