Cisco Systems AS5350 A

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Cisco AS5350 Universal Gateway Chassis Installation Guide

78-10754-03 0A

APPENDIX

A

Replacing Memory Components

This appendix contains procedures on how to replace memory chips in the CiscoAS5350

field-replaceable units. The appendix contains the following sections:

•Removing the Chassis Cover, page A-1

•Replacing the B oot ROM, page A- 4

•Replacing SDR A M D IMMs, page A- 7

•Replacing Flas h M e mo ry SIMMs, page A-9

•Replacing the C hassis Cover, page A - 12

Removing the Chassis Cover

This section describes how to open the chassis by removing the chassis cover.

Required Tools

You need the following too ls :

•Medium Phillips sc rewdriver

•Small or medi um fl at-blade screwd rive r

Safety Recommendations

Note the followin g safety recomm e n da tions:

Warning

Before opening the chassis, disconnect the telephone-network cables to avoid contact with

telephone-network voltages. To see translations of the warnings that appear in this publication, refer

to the Regulatory Compliance and Safety Information document that accompanied this device.

Warning

Do not work on the system or connect or disconnect cables during periods of lightning activity. To see

translations of the warnings that appear in this publication, refer to the Regulatory Compliance and

Safety Information document that accompanied this device.

Contents

Main Page Page Page Page Page Preface Document Organization Document Conventions ix Warning Definition x xi Related Documentation New Hardware Features Obtaining Documentation Cisco.com Documentation CD-ROM Ordering Documentation Obtaining Technical Assistance Cisco.com Technical Assistance Cen t er Cisco TAC Website Cisco TAC Escalation Center Obtaining Additional Publications and Information Overview Chassis Components Dial Feature Cards (DFCs) Power Supply Chassis Specifications Page Preparing to Install the Cisco AS5350 Chassis Safety Recommendations Maintaining Safety with Electricity Preventing Electrostatic Discharge Damage Required Tools and Equipment Preparing to Connect to a Network Ethernet Connections Console and Auxiliary Ports Console Port Auxiliary Port 2T Serial Ports Alarm Port BITS Port Power Supply Considerations Installing the Cisco AS5350 Setting Up the Chassis Setting the Chassis on a Desktop Attaching the Rubber Feet Rack-Mounting the Chassis Required Tools and Equipment Attaching the Brackets Installing in a Rack Connecting the Cha ssis Ground Connecting to the Network Connecting to an Ethernet N et wo r k Connecting to a WAN Page Page 3-10 Figure 3-10 Connecting a 2-Port or 4-Port DFC to an RJ-45 Jack E1 cable RJ-45 jack E1 cable Figure 3-11 Connecting an 8-Port DFC to an RJ-45 Jack Connecting to the Console and Auxiliary Ports Connecting to the Console P ort Connecting a Modem to the Auxiliary Port 3-13 Connecting a Signal Generator to the BITS Port Connecting an Alarm to the Alarm Port Supplying Power 3-16 3-17 Page Where to Go Next Page Troubleshooting LEDs Page Monitoring Environment 4-4 Displaying Environment Sta t us The display below appears on your console when the system reaches a warning state: 4-5 The display below appear s o n your console when th e sy s te m r ea ches a critical state: The display below appear s o n yo u r co nso le when the system reach es a s hutd ow n stat e: Troubleshooting Network Inter faces Replacing the Fan Tray Removing the Fan Tray Page Page Page Installing the Fan Tray Page Getting Help A Replacing Memory Components Removing the Chassis Cover Required Tools Safety Recommendations Chassis Cover Removal Page Replacing the Boot ROM Boot ROM Replacement -5 Step 6 Locate the boot ROM on the system board. (See Figure A-3.) Figure A-3 System Board Layout Page Replacing SDRAM DIMMs Required Tools and Equipment SDRAM DIMM Replacement Page Replacing Flash Memory SIMMs Required Tools and Equipment Flash Memory SIMM Replacement Page Replacing the Chassis Cover Chassis Cover Replacement Page Page B Replacing the Power Supply Overview Safety Recommendations Required Tools and Equipment Removing the Chassis Cover Page Page Removing the Old Power Supply Page Page Page Installing the Power Supply Page Replacing the Chassis Cover Page Page Page Page C Cabling Specifications Console and Auxiliary Port Cables and Pinouts Identifying a Rollover Cable Console Port Cables and Pin out s Page Auxiliary Port Cables and Pinouts Ethernet Port Pinouts BITS Port Pinouts Alarm Port Pinouts Bantam Jack Port Pinouts Page INDEX Numerics A B C D E F G H I J L O P R S T W