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Cisco 3700 Series Routers Hardware Installation Guide

OL-2180-08

Chapter 1 Overview of Cisco 3700 Series Routers

Power Supply Options

Figure 1-5 Cisco 3725 Router with Optional –48 V Power Module Installed

Figure 1-6 Cisco 3745 Router with Optional –48 V Power Modules Installed

72086

48V

power module

72085

48V power modules

Main Page

Default Chapter3
- Table of Contents3
Appendix A Troubleshooting8
Appendix B Using the ROM Monitor8
Chapter 3 Installing the Router8
- Conventions8
- Organization8
Preface8
- Safety Warnings9
- Related Documentation14
- Documentation Feedback16
- Obtaining Documentation16
  - Cisco.com16
  - Ordering Documentation16
- Obtaining Technical Assistance17
- Obtaining Additional Publications and Information18
- Hardware Features21
  - Cisco 372521
  - Cisco 374522
Audience8
CHAPTER 1 Overview of Cisco 3700 Series Routers21
- Modules, Interface Cards, and Memory23
- Memory24
- Interface Numbering25
- Power Supply Options29
  - Internal -48 V Telephony Power Modules29
- System Specifications31
- Regulatory Compliance32
CHAPTER 2 Preparing to Install the Router33
Safety Recommendations33
- Safety with Electricity34
- Preventing Electrostatic Discharge Damage34
General Site Requirements35
- Power Supply Considerations35
- Site Environment36
- Site Configuration36
- Equipment Racks36
Installation Checklist37
Creating a Site Log38
Inspecting the Router38
Required Tools and Equipment for Installation and Maintenance39
Console and Auxiliary Port Considerations40
- Console Port Connections40
- Auxiliary Port Connections40
Preparing to Connect to a Network41
- Ethernet Connections41
- Token Ring Connections42
- Serial Connections42
- ISDN BRI Connections44
- 56-K/Switched-56-Kbps DSU/CSU Connections45
- Installing Modules, Interface Cards, and Power Supplies47
- Setting up the Chassis48
  - Setting the Chassis on a Desktop48
  - Rack-Mounting the Chassis49
- Installing the Chassis Ground Connection54
  - Cisco 3725 Router Ground Connection55
  - Cisco 3745 Router Ground Connection56
- Power Connections57
- Connecting WAN, LAN, and Voice Cables66
  - Ports and Cabling66
  - Connection Procedures and Precautions67
- Connecting to a Console Terminal or Modem68
  - Connecting to the Console Port68
Appendix81
- A Troubleshooting82
- Solving Problems82
- Reading Front-Panel Leds84
- Reading Rear Panel Leds86
- Error Messages88
Cisco Network Modules Hardware Installation Guide92
- Assistance" Section on Page92
- Recovering a Lost Password92
Appendix93
- Using the ROM Monitor93
  - Entering ROM Monitor Mode93
    - Enter ROM Monitor Mode by Resetting the Configuration Register94
    - Enter ROM Monitor Mode by Using the Reload Command94
- ROM Monitor Commands94
- ROM Monitor Syntax Conventions95
- ROM Monitor Command Descriptions95
- Recovering Cisco IOS Software Images100
  - Description and Options of the Xmodem Command100
  - Terminal or Modem" Section101
Appendix103
- Configuration Register103
  - Configuration Register Settings103
Appendix C, "Configuration104
- Changing Configuration Register Settings104
- Section on Page104
- Configuring the Boot Field105
- Configuring the Boot Field106
- Enabling Booting from Compactflash Memory107
- Enabling Booting from Compactflash Memory108

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