Cisco C921J-4P Hardware Installation Manual

Cisco C921J-4P Hardware Installation Manual

Integrated services router

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Hardware Installation Guide for the Cisco 900 Series Integrated
Services Router
Last Modified: 2019-01-11
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 527-0883

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Summarization of Contents

Overview of Cisco 900 Series Integrated Services Routers
About Cisco 900 Series Integrated Service Routers
Provides details about the Cisco 900 series ISRs, their features, and suitability for businesses.
Chassis Views
Details front and back panel views, showing port and indicator locations for various models.
LED Indicators
Summarizes LED indicators on the bezel or chassis of the 900 series routers.
Power Supply
Outlines product power specifications for external power supply units.
Specifications of Cisco 900 Series Integrated Services Routers
Refers to a separate document for detailed features and specifications of the ISRs.
Periodic Inspection and Cleaning
Recommends periodic inspection and cleaning to minimize dust and debris impact.
Prepare for Router Installation
Safety Recommendations
Provides critical safety instructions and warnings for handling equipment and electrical hazards.
Safety With Electricity
Warns against opening the unit and highlights electrical safety precautions.
Site Requirements and ESD Prevention
Covers site requirements, electrical codes, grounding, and ESD prevention procedures.
Site and Rack Mounting Guidelines
Advises on environmental conditions, site selection, and rack mounting procedures.
Environmental and Power Requirements
Details environmental needs, power options, and guidelines for router operation.
Network Cabling and Console Connections
Covers cabling specifications, console port usage, and EIA/TIA-232 standards.
Connection Considerations
Discusses console port parameters, network distance, EMI, and Ethernet connection types.
Required Tools and Equipment for Installation
Lists essential tools and equipment needed for router installation.
Install and Connect the Router
Unpack and Set Up Router
Instructions for unpacking the router and setting it up on various surfaces.
Connect Power Cable
Details how to connect the power supply for routers with internal or external AC power.
Connect Router to Console
Explains how to connect the router to a console terminal or PC for administrative access.
Connect WAN and LAN Interfaces
Describes how to connect WAN and LAN interface cables to the router.
Configure Router at Startup
Guides on performing basic configurations after installation and connection.
ROM Monitor Overview and Basic Procedures
ROM Monitor Overview
Introduces ROMMON as a bootstrap program for hardware initialization and booting.

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