iv
Cisco 2900 Series and 3900 Series Hardware Installation Guide
OL-18712-02
Preface
 
Organization
This guide includes the following chapters:
Chapter Title  Description
1 Overview of the Routers Describes the router chassis views, information 
for locating the serial number, PID
1
, and UDI
2
. 
Also includes general hardware features, slot, 
port, and interface information; and LED 
indicators.
2 Preparing for Router Installation Describes site requirements and the equipment 
needed to install the router.
3 Installing and Connecting the Router Describes how to install and connect the router to 
LAN, WAN, and Voice networks.
4 Configuring the Router Describes how to power up the router and 
perform the initial configuration.
5 Installing and Upgrading Internal 
Modules and FRUs
Describes how to install and upgrade internal 
modules and field replaceable units
3
 on the 
router.
6 Getting Software Licenses for the 
Router
Describes how to purchase a PAK and activate 
software licenses on the router.
7 Online Insertion Removal and 
Hot-Swapping
Describes how to remove and replace data and 
voice modules using the online insertion and 
removal
4
 procedure.
1. PID = Product ID
2. UID = Universal Device Identifier
3. FRU = Field Replaceable Unit
4. OIR = Online Insertion and Removal