Introducing iWiFi

1
Introducing iWiFi

• 802.11b Wireless LAN Device Server

2
iWiFi Highlights

• External device server that connects any serial
  device to 802.11b Wireless LANs
• No Internet programming needed
• Enables remote access to devices installed behind
  NATs and firewalls using Connect Ones Device
  Connectivity Server
• Plug-and-play SerialNET mode
• Includes iChip CO710AG and 802.11b WiFi compact
  flash adapter

3
What Do Customers Want?

• Use existing application
• Low-cost, risk-free wireless IP connectivity
• Minimum or no changes to current product
• Avoid Internet programming
• A choice of Internet protocols
• Easy implementation and maintenance
• Reliable connectivity and excellent support

4
CO710AG iChip Internet Engine

• Mediates link between the device and the network

• Works with any host device and any (or no) host
  operating system

• Requires only minimal change to application code

• No Internet programming required

• Includes high-level API for easy, fast
  implementation and maintenance

• Full range of Internet protocols and
  configuration parameters are stored in flash
  memory

• Remotely updateable firmware

5
ATi Protocol

• Logical interface between application and iChip
• Internet extension to AT command set
• Always adding new functionality and features
• ASCII commands invoke Internet protocols on iChip
• Requires just a few commands on host application
• Internet Mode accesses ISP via host ATi
  commands
• SerialNET Mode requires no change to application

6
SerialNET Mode for Plug-and-Play

• Bridges between serial data and TCP/IP packets
• Uses TCP/UDP sockets to connect to remote device
• No need for ATi commands on host device
• Enables device to act as server or client
• Ring response server enables automatic wake-up
• Always online mode
• Connects over NATs and firewalls

7
Typical Wireless LAN System Configuration
8
Device Connectivity Server for Remote Access
Firewall/NAT
Device Connectivity Server
Optional Device Connectivity Server overcomes
NATs and firewalls by using a proxy server and
agent for remote access
Dynamic/Private IP Addresses
9
iWiFi Software Features

• Throughput up to 230.4 kbits/second
• Includes hardware and software flow control
• Firmware is remotely updateable via email, Web or
  sockets
• Contains two Web sites one for application and
  one to configure iChip
• Optional secure version with SSL3 support
• Enables choice of a wide range of Internet
  protocols

10
Wireless LAN Internet Protocol Stack
Application Specific Protocols
ARP
IP
802.11b Wireless LAN CF Adapter
11
iWiFi Hardware Description
Top View
Side View
Link LED
DC Jack
Mode Select
802.11b CF Adapter
Male DB-9 Connector
Power LED
Dimensions 94 x 63 x 28 mm (3.7 x 2.5 x
1.1) Weight 115 g (4.1 oz.) Power Requirement
5-24VDC
12
Summary

• iWiFi is a versatile Device Server that enables
  easy connectivity for serial devices over 802.11b
  Wireless LANs