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Enhanced cablelength CLI

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Enhanced cablelength CLI

Contents

How to Fine-Tune the Pulse of a Signal at the Receiver for an E1 Cable

Configuring the cablelength (E1 controller) Command

Configuration Examples for the cablelength (E1 controller) Command

Configuring the cablelength (E1 controller) Command: Example

Additional References

Related Documents

MIBs

Technical Assistance

Command Reference

cablelength (E1 controller)

Feature Information for Enhanced cablelength CLI


Enhanced cablelength CLI

First Published: March 1, 2006
Last Updated: March 1, 2006

This feature provides a configuration option to fine-tune the E1 receiver sensitivity for Cisco AS5300, Cisco AS5350, and Cisco AS5400 platforms.

Finding Feature Information in This Module

Your Cisco IOS software release may not support all of the features documented in this module. To reach links to specific feature documentation in this module and to see a list of the releases in which each feature is supported, use the "Feature Information for Enhanced cablelength CLI" section.

Finding Support Information for Platforms and Cisco IOS and Catalyst OS Software Images

Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

Contents

•How to Fine-Tune the Pulse of a Signal at the Receiver for an E1 Cable

•Configuration Examples for the cablelength (E1 controller) Command

•Additional References

•Command Reference

•Feature Information for Enhanced cablelength CLI

How to Fine-Tune the Pulse of a Signal at the Receiver for an E1 Cable

This section contains the following procedure:

•Configuring the cablelength (E1 controller) Command (required)

Configuring the cablelength (E1 controller) Command

To configure the cablelength (E1 controller) command, perform the following steps.

SUMMARY STEPS

1. enable

2. configure terminal

3. controller e1 slot/port

4. cablelength {custom gain-value [squelch-on] | long [squelch-on] | medium [squelch-on] | short [squelch-on]}

DETAILED STEPS

 
Command or Action
Purpose

Step 1 

enable

Example:

Router> enable

Enables privileged EXEC mode.

•Enter your password if prompted.

Step 2 

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3 

controller e1 slot/port

Example:

Router(config)# controller e1 0/0

Configures an E1 controller and enters controller configuration mode.

Step 4 

cablelength {custom gain-value [squelch-on] | long [squelch-on] | medium [squelch-on] | short [squelch-on]}

Example: 
Router(config-controller)# cablelength long 
squelch-on

Fine-tunes the pulse of a signal at the receiver for an E1 cable on a Cisco AS5300 or Cisco AS5400.

Configuration Examples for the cablelength (E1 controller) Command

This section provides the following configuration example:

•Configuring the cablelength (E1 controller) Command: Example

Configuring the cablelength (E1 controller) Command: Example

The following example shows how to configure the cablelength (E1 controller) command for use with an E1 cable to support a medium-haul application: 

controller e1 0/0

 cablelength medium

Additional References

The following sections provide references related to the enhanced cablelength (E1 controller) command.

Related Documents

Related Topic
Document Title

Interface and hardware component commands

Cisco IOS Interface and Hardware Component Command Reference, Release 12.4 

Interface and hardware component configuration

Cisco IOS Interface and Hardware Component Configuration Guide, Release 12.4 


MIBs

MIB
MIBs Link

None

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://www.cisco.com/go/mibs


Technical Assistance

Description
Link

The Cisco Technical Support & Documentation website contains thousands of pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content.

http://www.cisco.com/techsupport


Command Reference

This section documents the new cablelength (E1 controller) command.

cablelength (E1 controller)

To fine-tune the pulse of a signal at the receiver for an E1 cable on a Cisco AS5300, Cisco AS5350, or Cisco AS5400, use the cablelength command in controller configuration mode. To restore the default receiver sensitivity, use the no form of this command.

cablelength {custom gain-value [squelch-on] | long [squelch-on] | medium [squelch-on] | short [squelch-on]}

no cablelength

Syntax Description

custom

Fine-tunes the receiver sensitivity for long-haul, medium-haul, and short-haul applications.

gain-value

Custom gain value for the receiver in the range of 0x1 to 0x3F. These settings are mapped to values in the range of 0 to -45 dB.

long

Fine-tunes the receiver sensitivity for long-haul applications.

medium

Fine-tunes the receiver sensitivity for medium-haul applications.

short

Fine-tunes the receiver sensitivity for short-haul applications.

squelch-on

(Optional) Enables squelch to improve the signal-to-noise ratio.


Command Default

Default receiver sensitivity for E1 cables is applied.

Command Modes

Controller configuration

Command History

Release
Modification

12.3(17)

This command was introduced.


Usage Guidelines

This command is supported on E1 controllers only.

Note The cable line pulse gain values are not dependent upon the E1 line being configured in balanced (120-ohm) mode or unbalanced (75-ohm) mode.

Examples

The following example shows how to fine-tune the receiver sensitivity for an E1 cable on a Cisco AS5300 to support a long-haul configuration: 

Router(config-controller)# cablelength long squelch-on

Feature Information for Enhanced cablelength CLI

Table 1 lists the release history for this feature.

Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS and Catalyst OS software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

Note Table 1 lists only the Cisco IOS software release that introduced support for a given feature in a given Cisco IOS software release train. Unless noted otherwise, subsequent releases of that Cisco IOS software release train also support that feature.

Table 1 Feature Information for Enhanced cablelength CLI

Feature Name
Releases
Feature Information

Enhanced cablelength CLI

12.3(17), 12.4(4)

This feature provides a configuration option to fine-tune the E1 receiver sensitivity for Cisco AS5300, Cisco AS5350, and Cisco AS5400 platforms.



Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.

© 2006 Cisco Systems, Inc. All rights reserved.