Seagate ST31230N/ND Guía de instalación descargar pdf (Pagina 237)

Hardware maintenance 16-5

Removing and replacing the printed circuit packs

Standard 1.0 Option 11 EC Installation and Maintenance Guide November 1999

Removing and replacing the printed circuit packs

Introduction

The following PCPs are used in the EC 11. For PCP slot

designation, see Chapter 7, “Configuring and installing the

printed circuit packs.”

• Enhanced MMP40 or MMP40 cards

• Utility cards

• VP8 and VP4 cards

Note: Only the voice processor cards are hot-pluggable. That

is, you can remove or insert voice processor cards while the

power to the module is still on. It is recommended, however,

that you power down the module prior to removing or

inserting the voice processor cards. For removal without

powering down, you must first disable the voice processor

cards using the “System Status and Maintenance” function on

the administration terminal.

Replacing a printed

circuit pack

To replace a PCP, follow these steps.

Step Action

1 Courtesy down the system, if operating, and power

down the EC 11.

2 Locate the card to be replaced in the appropriate

node.

3 Ensure that you are wearing antistatic wrist straps.

Open the locking levers on the card and gently pull

the card toward you until it clears the shelf.

4 Check the new card to make sure it has the same

PCP number as the one you have removed.

5 Check the new card to make sure it is not bent and

has no loose parts.

6 Check the new card to make sure that switches and

jumpers are identical to the old card.

7 If you are not installing the new card immediately,

place it in an electrostatic discharge (ESD)

protective container.

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Seagate ST31230N/ND Guía de instalación Pagina 237