US Robotics USR2410 Manual de usuario descargar pdf (Pagina 25)

Chapter 3 -

Mesh Router Hardware

This section outlines the hardware specifications, components and configurations that make up

the mesh routers for this project. The various hardware configurations allowed communication

between each of the wireless mesh routers, between a router and its clients, and between a router

and the Internet. The hardware design decisions will be described in the first two sections of this

chapter. The third section shows how it was integrated to form the base of a wireless mesh router.

3.1

Basic Computer System

The Basic Computer system allowed integration of multiple PCI adapters supporting wireless and

wired Ethernet communication. In addition to supporting multiple PCI adapters the processing

power of the systems also supported a minimal Unix based operating system and were able to

route packets from multiple sources efficiently with out lag due to system load. Table 3-1 shows

the specifications and components of the system. Although the system’s speed was below the

standards of a common desktop, they were more than adequate in processing power for the

project. Small integrated system boards were considered but exceeded the allowed budget and

lacked the expandability to be a complete solution. The system chosen had three PCI slots, which

allowed for flexibility in regards to the communication device configuration.

Table 3-1: Hardware Configuration of Mesh Routers

Hardware Configuration of Mesh Routers

CPU: Intel Pentium II processor running at 200 MHz

Memory:64 MB RAM

HD: 3 GB hard disk drive

Video: ATI Rage Pro AGP 1X/2X Video Card

Network: D-Link DWL-AG530 Atheros based wireless Ethernet card.

Realtek Semiconductor wired Ethernet card, installed in two machines.

U.S. Robotics USR2410 Wireless PCI Card, installed in one machine

3.2 Selection of Communication Standards

Wireless communication between mesh routers and clients was a requirement of the project. The

802.11 communication standard was selected as the medium for communication since it is

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US Robotics USR2410 Manual de usuario Pagina 25