Cisco 7600 Series Router Module Installation Guide
Cable Specifications
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Cable Specifications

Table Of Contents

Cable Specifications

Interface Specifications

Fiber-Optic Specifications

Switching Module RJ-45 10/100BASE-TX Ports

Supervisor Engine 2 Console Port Signals and Pinouts

Console Port Mode Switch

Identifying a Rollover Cable

Console Port Mode 1 Signaling and Pinouts

DB-9 Adapter (for Connecting to a PC)

DB-25 Adapter (for Connecting to a Terminal)

Modem Adapter

Console Port Mode 2 Signaling and Pinouts


Cable Specifications


This appendix lists the cable specifications for supported modules on the Cisco 7600 series router. The following signal summaries are contained in this appendix:

Interface Specifications

Fiber-Optic Specifications

Switching Module RJ-45 10/100BASE-TX Ports

Supervisor Engine 2 Console Port Signals and Pinouts

Interface Specifications

Table B-1 lists the interface specifications for the OSMs.

Table B-1 Cisco 7600 OSM Interface Specifications 

Cisco 7600 OSMs
Physical Layer Interface
Mbps per Interface
Interface (Quantity and Type)

1-port and 2-port channelized OC-48

OC-48

2488.320 Mbps; full duplex

1 or 2 LC-type connectors

2-port and 4-port OC-12 POS

OC-12c

622.080 Mbps; full duplex

2 or 4 SC-type connectors

4-port and 8-port channelized OC-12

OC-12

622.080 Mbps; full duplex

4 or 8 LC-type connectors

8-port and 16-port OC-3 POS

OC-3c

155.520 Mbps; full duplex

8 or 16 MT-RJ connectors

2-port OC-12 ATM

OC-12c

622.080 Mbps; full duplex

2 SC-type connectors


Fiber-Optic Specifications

The specification for optical fiber transmission defines two types of fiber: single-mode and multimode. Within the single-mode category, three transmission types are defined: short reach, intermediate reach, and long reach. Within the multimode category, only short reach is available. Specifications for OC-3, OC-12, OC-48, and Gigabit Ethernet are in the "Determining Cable Distances" section on page 2-10.

Switching Module RJ-45 10/100BASE-TX Ports

Table B-2 lists the signals for the RJ-45 10/100BASE-TX ports. The receive and transmit signals are polarized. One pin of each signal pair carries the positive (+) signal, and the other pin carries the negative (-) signal.


Note Table B-2 lists the signals for the RJ-45 10/100BASE-TX connector, not the pinouts of the cable connecting to the port.


Table B-2 RJ-45 10/100BASE-TX Signals  

Pin
Signal
Description

1

RxD (+)

Receive Data (+)

2

RxD (-)

Receive Data (-)

3

TxD (+)

Transmit Data (+)

4

NC

No Connection

5

NC

No Connection

6

TxD (-)

Transmit Data (-)

7

NC

No Connection

8

NC

No Connection


Supervisor Engine 2 Console Port Signals and Pinouts

The Cisco 7600 series router comes with an accessories box that contains the cable and adapters you need to connect a console (an ASCII terminal or PC running terminal emulation software) or modem to the console port. The accessories box includes these items:

RJ-45-to-RJ-45 rollover cable

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")

This cable and these adapters also ship with the Cisco 2500 series routers and other Cisco products.

Console Port Mode Switch

The Supervisor Engine 2 front-panel console port mode switch allows you to connect a terminal or modem to the console port as follows:


Note Use a ballpoint pen tip or other small, pointed object to access the console port mode switch. The switch is shipped in the in position.


Mode 1—Switch in the in position. Use this mode to connect a terminal to the console port using the RJ-45-to-RJ-45 rollover cable and DTE adapter (labeled "Terminal").

You can also use this mode to connect a modem to the console port using the RJ-45-to-RJ-45 rollover cable and DCE adapter (labeled "Modem").

See the "Console Port Mode 1 Signaling and Pinouts" section.

Mode 2—Switch in the out position. Use this mode to connect a terminal to the console port using the Catalyst 5000 family Supervisor Engine III console cable and appropriate adapter for the terminal connection (cable and adapter are not provided).

See the "Console Port Mode 2 Signaling and Pinouts" section.

Identifying a Rollover Cable

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 Figure B-1.) If your 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-1 Identifying a Rollover Cable

Console Port Mode 1 Signaling and Pinouts

This section provides the signaling and pinouts for the console port in mode 1 (console port mode switch in the in position).

DB-9 Adapter (for Connecting to a PC)

Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-9 female DTE adapter (labeled "Terminal") to connect the console port to a PC running terminal emulation software. Table B-3 lists the pinouts for 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-3 Port Mode 1: Console Port Signaling and Pinouts (DB-9 Adapter)

Console Port
RJ-45-to-RJ-45 Rollover 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

2

4

DTR

CTS

81

1

7

RTS

1 Pin 1 is connected internally to Pin 8.


DB-25 Adapter (for Connecting to a Terminal)

Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-25 female DTE adapter (labeled "Terminal") to connect the console port to a terminal. Table B-4 lists 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.

Table B-4 Port Mode 1: Console Port Signaling and Pinouts
(DB-25 Adapter) 

Console Port
RJ-45-to-RJ-45 Rollover Cable
RJ-45-to-DB-25 Terminal Adapter
Console
Device
Signal
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal

RTS

11

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

2

20

DTR

CTS

81

1

4

RTS

1 Pin 1 is connected internally to Pin 8.


Modem Adapter

Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-25 male DCE adapter (labeled "Modem") to connect the console port to a modem. Table B-5 lists the pinouts for the asynchronous serial auxiliary port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 male DCE adapter.

Table B-5 Port Mode 1: Console Port Signaling and Pinouts
(Modem Adapter) 

Console Port
RJ-45-to-RJ-45 Rollover 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

3

TxD

GND

4

5

7

GND

GND

5

4

7

GND

RxD

6

3

2

RxD

DSR

7

2

8

DCD

CTS

81

1

5

CTS

1 Pin 1 is connected internally to Pin 8.


Console Port Mode 2 Signaling and Pinouts

This section provides the signaling and pinouts for the console port in mode 2 (console port mode switch in the out position). See Table B-6 for the pinouts.

Table B-6 Console Port Pinouts (Port Mode Switch Out)

Console Port
Console Device
Pin (signal)
Input/Output

1 (RTS)1

Output

2 (DTR)

Output

3 (RxD)

Input

4 (GND)

GND

5 (GND)

GND

6 (TxD)

Output

7 (DSR)

Input

8 (CTS)1

Input

1 Pin 1 is connected internally to Pin 8.