Cisco UBR7246VXR Panduan Instalasi - Halaman 13

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Preparing for Installation

This chapter describes the general equipment, safety, and site preparation requirements for installing the

Cisco Cable Clock Card. This chapter contains the following sections:

•

Required Tools and Equipment

You need the following tools and parts to install a Cisco Cable Clock Card. If you need additional

equipment, contact a service representative for ordering information.

•

Software Requirements

Cisco IOS Release 12.1(1a)T1 or later, as well as Cisco IOS Release 12.1(2)EC1 or later, are the

minimum Cisco IOS software releases required to use the clock card with a Cisco uBR-MC16S or

Cisco uBR-MC16E cable modem card. Cisco IOS Release 12.1(3a)EC1 or later is the minimum

Cisco IOS software release required to use the clock card with a Cisco uBR-MC28C cable modem card.

You can use other cable interface cards, such as the Cisco uBR-MC16C, with the clock card, but these

Note

other cable interfaces will not synchronize their downstream SYNC messages with the external clock

source.

OL-26705-01

Required Tools and Equipment, page 2-1

Software Requirements, page 2-1

Safety Guidelines, page 2-2

FCC Class A Compliance, page 2-4

Cisco uBR7246 VXR universal broadband router

UBR-CLK-T1(=) Cisco Cable Clock Card

Cables appropriate for the clock card's interfaces; Cisco provides DSU/CSU cables. You can use a

DA-15 female to pigtail cable, 24.6 feet (7.5 m), CAB-SDS6 cable, COM-T1Product Number. For

pinouts, refer to:

http://www.cisco.com/univercd/cc/td/doc/product/core/cis7505/ipicg/

Number 2 Phillips screwdriver

Your own electrostatic discharge (ESD)-prevention equipment or the disposable grounding wrist

strap included with all upgrade kits, field-replaceable units (FRUs), and spares

Antistatic mat

Antistatic container

Cisco Cable Clock Card Hardware Installation Guide for the Cisco uBR7246VXR Universal Broadband Router

C H A P T E R

2-1