Cisco Systems 7304 manual Configuring Cable Length, Verify Cable Length Setting, 13-14

Chapter 13 Configuring the 2-Port and 4-Port T3/E3 SPAs

Configuration Tasks

Configuring Cable Length

The cablelength command compensates for the loss in decibels based on the distance from the device to the first repeater in the circuit. A longer distance from the device to the repeater requires that the signal strength on the circuit be boosted to compensate for loss over that distance. To configure cable length, use the following commands:

Command	Purpose
Router# configure terminal	Enters global configuration mode.
Router(config)# interface serial slot/subslot/port	Selects the interface to configure and enters
	interface configuration mode.
	• slot/subslot/port— Specifies the location of the
	interface. See the: “Specifying the Interface
	Address on a SPA” section on page 13-5
Router(config-if)# cablelength length	Sets the cable length.
	• length—Range is 0-450 feet. The default is 10
	feet.

Verify Cable Length Setting

Use the show interfaces serial command to verify the cable length setting:

router# show interfaces serial 4/0/0 Serial4/0/0 -

Framing is c-bit, Clock Source is Internal

Bandwidth limit is 44210, DSU mode 0, Cable length is 200 rx FEBE since last clear counter 0, since reset 22

Data in current interval (446 seconds elapsed):

0 Line Code Violations, 0 P-bit Coding Violation 0 C-bit Coding Violation

0 P-bit Err Secs, 0 P-bit Sev Err Secs

0 Sev Err Framing Secs, 0 Unavailable Secs

0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs Data in Interval 1:

0 Line Code Violations, 0 P-bit Coding Violation 0 C-bit Coding Violation

0 P-bit Err Secs, 0 P-bit Sev Err Secs

0 Sev Err Framing Secs, 0 Unavailable Secs

0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs Data in Interval 2:

0 Line Code Violations, 0 P-bit Coding Violation 0 C-bit Coding Violation

0 P-bit Err Secs, 0 P-bit Sev Err Secs

0 Sev Err Framing Secs, 0 Unavailable Secs

0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs

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	Cisco 7304 Router Modular Services Card and Shared Port Adapter Software Configuration Guide
13-14	OL-4807-02