Cisco UBR7246VXR Kurulum Kılavuzu - Sayfa 18

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Handling the Clock Card

Caution

Always handle the clock card by the carrier edges and handle; never touch the clock card's components

or connector pins. (See

Figure 3-1

Online Insertion and Removal

The Cisco uBR7246 VXR supports online insertion and removal (OIR), however, the clock card cannot

be "hot-swapped" in the chassis. You must power down the Cisco uBR7246 VXR when removing and/or

replacing a clock card. Removing the clock card from the chassis before powering off will cause the

router to crash.

Before you begin installation, read

Note

required for installation.

Warnings and Cautions

Observe the following warnings and cautions when installing or removing the clock card.

Caution

Do not attempt to remove or install the clock card unless you have first powered off the

Cisco uBR7246 VXR.

Do not connect the primary and/or secondary DB-15 T1 cables until the clock card has been installed in

Caution

the Cisco uBR7246 VXR.

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

3-2

Figure

3-1.)

Handling a Clock Card

Printed circuit board

Metal carrier

Chapter 3

Chapter 2, "Preparing for Installation"

Removing and Installing the Clock Card

for a list of parts and tools

OL-26705-01