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1 Cisco One-Year Limited Warranty Terms
There are special terms applicable to your hardware warranty and various services that you can use during the warranty period.
Your formal Warranty Statement, including the warranties and license agreements applicable to Cisco software, is available on
Cisco.com at the following URL: www.cisco.com/go/warranty.
You can also contact the Cisco service and support website for assistance: http://www.cisco.com/en/US/support/
2 Overview
The Cisco 3800 series integrated services routers include the Cisco 3825 and Cisco 3845 routers. Both routers support WAN
interface cards (WIC), voice/WAN interface cards (VWICs), high-speed WAN interface cards (HWICs), and advanced
integration modules (AIMs). These routers differ as follows:
• Cisco 3825 routers support 2 network module slots. The lower network module slot, labeled 1, can hold either 1 single-wide
network module or 1 extended single-wide network module. The upper network module slot, labeled 2, can hold either 1
single-wide network module, 1 extended single-wide network module, 1 double-wide network module, or 1 extended
double-wide network module. Cisco 3825 routers also support 1 optional small form-factor pluggable (SFP) slot, 2 built-in
Gigabit Ethernet LAN ports, 2 built-in USB ports for future use, 4 single-wide or 2 double-wide HWICs (high-speed WICs),
2 AIMs, 4 PVDMs (packet voice data modules), 24 ports of IP phone power output, and hardware-based VPN encryption
acceleration. IP phone power is supported if the appropriate AC-input chassis power supply is installed.
• Cisco 3845 routers provide 4 network module slots, labeled 1, 2, 3, and 4. Each slot supports any of the following modules:
single-wide network module, enhanced single-wide network module, or enhanced extended single-wide network module.
Slots 1 and 2 combine to support double-wide network modules or extended double-wide network modules. Similarly, slots
3 and 4 combine to support double-wide network modules or extended double-wide network modules.
Cisco 3845 routers also support 1 optional SFP slot, 2 built-in Gigabit Ethernet LAN ports, 2 built-in USB ports for future
use, 4 single-wide or 2 double-wide HWICs, 2 AIMs, 4 PVDMs, 48 ports of IP phone power output, and hardware-based
VPN encryption acceleration.
This document provides the minimum necessary information to help you install the router, power it up, and configure a network
connection. This document directs you to other documents for the following information:
• More detailed router installation instructions, descriptions, and specifications
• Procedures for installing modules, interface cards, power supplies, and memory
Note The interface numbering on Cisco 3800 series routers is different from the numbering on Cisco 3700 series routers.
For more information on interface numbering, see the “Port Numbering” section on page 29.
• Software configuration
• Regulatory compliance and safety information
Product Serial Number Location
The serial number label for Cisco 3825 and Cisco 3845 routers is located on the rear of the chassis, on the right side, as shown
in Figure 1 and Figure 2.
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