Appendix B Cable Specifications

Console Port Signals and Pinouts

Figure B-4 Connecting the Console Port to a PC

RJ-45-to-RJ-45

rollover cable Router

PC

RJ-45-to-DB-9 adapter (labeled TERMINAL)

H7226

Table B-3lists the Console port pinouts for the Cisco ASR 901 router.

Table B-3

Console Port Pinouts

 

 

 

 

 

 

 

Pin

Signal Name

HP Pins

Direction

Description

 

 

 

 

 

1

RTS

UART_RTS1

Output

Request to send

 

 

 

 

 

2

DTR

NC

 

 

 

 

 

 

 

3

TXD

UART_SOUT1

Output

Transmit data

 

 

 

 

 

4

RI

GND

 

Ring indicator

 

 

 

 

 

5

GND

GND

 

 

 

 

 

 

 

6

RXD

UART_SIN1

Input

Receive data

 

 

 

 

 

7

DSR/DCD

NC

Input

Data set ready/Data Carrier detect

 

 

 

 

 

8

CTS

UART_CTS1

Input

Clear to send

 

 

 

 

 

Table B-4describes the pinouts RJ-45-to-RJ-45 and RJ-45-to-DB-9 rollover cables.

Table B-4

Console Port Signaling and Cabling Using a DB-9 Adapter

 

 

 

 

 

 

 

 

 

 

 

RJ-45-to-DB-9

 

 

 

 

 

Terminal Adapter

 

Console

 

 

 

(Connected to Rollover

Console

Port (DTE)

 

RJ-45-to-RJ-45 Rollover Cable

Cable)

Device

 

 

 

 

 

 

Signal

 

RJ-45 Pin

RJ-45 Pin

DB-9 Pin

Signal

 

 

 

 

 

 

RTS

 

11

8

8

CTS

DTR

 

2

7

6

DSR/DCD

 

 

 

 

 

 

TxD

 

3

6

2

RxD

 

 

 

 

 

 

GND/RI

 

4

5

5

GND

 

 

 

 

 

 

GND

 

5

4

5

GND/RI

 

 

 

 

 

 

RxD

 

6

3

3

TxD

 

 

 

 

 

 

DSR/DCD

 

7

2

4

DTR

 

 

 

 

 

 

CTS

 

81

1

7

RTS

1. Pin 1 is connected internally to pin 8.

Table B-5lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL).

Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide

 

B-4

OL-23778-01

 

 

 

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Cisco Systems A9014CFD, ASR 9014CFD Pin Signal Name HP Pins Direction Description, RJ-45-to-DB-9 Terminal Adapter Console