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Cisco C1861-SRST-B/K9 Hardware Installation Guide - Page 27

Interface Numbering

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Chapter 1 Overview Figure 1-11 Front Panel of Cisco 1812 Router SWITCH 9 8 7 6 FE1 PPP VPN SYS OK POE S 4 FEX 3 2 FE0 LINK B1 ISDN B2 CF 1 1 CompactFlash Slot Figure 1-12 Back Panel of Cisco 1812 Router Interface Numbering Cisco 1800 Series 127167 127161 9 12 3 45 6 7 9 8 1 ISDN BRI S/T port 6 POE connector1 2 USB 2.0 ports 7 Power switch 3 Managed 8-port FE switch 8 Power connector FE WAN ports 4 RP-TNC antenna connectors (wireless models 9 only) 5 Console and AUX ports 1. Inline power is a field-upgradable option only. It is not installed by default. Interface Numbering The WAN and LAN interfaces on a Cisco 1800 series fixed-configuration router are numbered as follows: • On the Cisco 1811 and Cisco 1812 routers, the Fast Ethernet 10/100 WAN ports are numbered FE 0 and FE 1; the lower of the two ports is FE 0. • On the Cisco 1801, Cisco 1802, and Cisco 1803 routers, the Fast Ethernet 10/100 WAN port is numbered FE 0. • On the Cisco 1811 and Cisco 1812 routers, the Fast Ethernet LAN switch ports are numbered FE 2 through FE 9. The FE 2 port is the lower port, farthest on the right (as viewed from the rear of the router), and switch ports are numbered incrementally, FE 2 through FE 5, to the left along the bottom row, and then incrementally, FE 6 through FE 9, to the left along the top row. OL-6425-03 Cisco 1800 Series Integrated Services Routers (Fixed) Hardware Installation Guide 1-11

Section	Page
Cisco 1800 Series Integrated Services Routers (Fixed) Hardware Installation Guide	1
Contents	3
Overview	17
Hardware Features	18
Product Serial Number Location	18
Cisco Product Identification Tool	18
Feature Summary	18
Memory	19
Power	20
LED Indicators	20
Integrated 802.11a/b/g Radio Module (Wireless Models Only)	21
Supported Cisco Radio Antennas (Wireless Models Only)	22
Chassis Ventilation	22
Real-Time Clock	22
Kensington Lock	23
Chassis Views	23
Cisco 1811 Chassis	25
Cisco 1812 Chassis	26
Interface Numbering	27
Specifications	28
Regulatory Compliance	29
Preinstallation Requirements	31
Safety Recommendations	32
Safety with Electricity	32
Preventing Electrostatic Discharge Damage	33
Additional Warnings for Wireless Routers	33
General Safety Guidelines for Wireless Routers	33
General Site Requirements	34
Power Supply Considerations	34
Site Environment	34
Wireless LAN Considerations	34
Site Configuration	35
Installation Checklist	35
Creating a Site Log	36
Inspecting the Router	37
Required Tools and Equipment for Installation and Maintenance	37
Chassis Installation Procedures	39
Setting Up the Chassis	39
Setting a Cisco 1800 Series Fixed-Configuration Router on a Desktop	40
Chassis Grounding	40
Mounting a Cisco 1800 Series Fixed-Configuration Router on a Wall	40
Installing the Chassis Ground Connection	41
Power, Cable, and Antenna Connection Procedures	43
Power Connections	43
Connecting Routers to AC Power	44
Connecting WAN and LAN Cables	44
Preparing to Connect to a Network	45
Ethernet Connections	46
ISDN BRI Connections	46
Ports and Cabling	46
Connection Procedures and Precautions	47
Connecting to a Console Terminal or Modem	47
Console and Auxiliary Port Considerations	48
Console Port Connections	49
Connecting to the Console Port	49
Auxiliary Port Connections	49
Connecting to the Auxiliary Port	50
Connecting the Radio Antennas to the Wireless Router	50
Power-Up and Initial Configuration Procedures	53
Powering Up Cisco 1800 Series Fixed-Configuration Routers	53
Checklist for Power Up	53
Power-Up Procedure	54
Verifying the Front Panel LED Indications	55
Verifying the Hardware Configuration	55
Configuring the Router	55
Initial Configuration Using Cisco Router and Security Device Manager	56
Initial Configuration Using the Setup Command Facility	56
Initial Configuration Using the Cisco CLI-Manual Configuration	59
Verifying the Initial Configuration	60
Completing the Configuration	61
Troubleshooting	63
Solving Problems	63
Troubleshooting the Power and Cooling Systems	64
Normal Indications	64
Fault Indications	64
Environmental Reporting Features	64
Troubleshooting Cables and Connections	65
Reading System LEDs	66
Reading Port and Connection LEDs	66
System Messages	68
Recovering a Lost Password	69
More Troubleshooting Help-Cisco Technical Assistance Center	69
Installing and Upgrading Internal Modules	71
Safety Warnings	71
Removing the Chassis Cover	72
Locating Modules	73
Installing and Removing DIMMs	74
Removing a DIMM	74
Installing a DIMM	75
Installing the Optional Inline Power Supply	75
Installing the Chassis Cover	76
Removing and Installing CompactFlash Cards	77
Preventing Electrostatic Discharge Damage	77
Removing a CompactFlash Memory Card	77
Installing a CompactFlash Memory Card	78