Cisco 7300-6T3 User Manual download pdf (Page 24)

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Clear Channel 6-Port T3 (DS3) Line Card Installation and Configuration

OL-3449-02

Chapter 2 Preparing for Installation

Software and Hardware Requirements

Table 2-1 lists the recommended minimum Cisco IOS software release required to use the 6-port 6T3

line card in the 7304 router platform.

75-Ohm In-Line Coaxial Attenuator (Optional)

A 75-ohm in-line coaxial attenuator may be required to tune the signal between the 6T3 line card and

the far-end equipment if the line card is experiencing line code violations (LCVs). LCVs occur when the

far-end equipment transmit signal saturates the front-end receiver of the 6T3 line card.

Cisco offers an attenuator kit (ATTEN-KIT-PA=) that contains five attenuators with fixed values

ranging from 3 dB to 20 dB. For more information on the attenuator kit, go to the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/core/7206/fru/12884att.htm

Safety Guidelines

This section provides safety guidelines that you should follow when working with any equipment that

connects to electrical power or telephone wiring.

Caution The 6T3 line card is not intended for direct connection to outside telecommunication lines. If connected

to an outside telecommunication line, suitable protection devices need to be provided.

Safety Warnings

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, might

harm you. A warning symbol precedes each warning statement.

Table 2-1 6T3 Line Card Software Requirements

Router Platform Recommended Minimum Cisco IOS Release

Cisco 7304 Router

1. The 6T3 line card requires a Network Services Engine 100 (NSE-100) to operate.

Cisco IOS Release 12.1(10)EX or a later release of Cisco IOS Release 12.1 EX

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Cisco 7300-6T3 User Manual Page 24