Vorsis AirAura Specifications download pdf (Page 51)

Appendix B

Default Factory Wireless Ethernet Configuration

- Modifying the Settings –

Introduction

AirAura utilizes an industrial grade off-the-shelf hardware solution for its wireless

interface. The benefits of using a ready-made wireless device instead of ‘rolling

our own’ are many, the most salient of them is us being released from the

tedious task (and high cost) of having an RF-based design tested and approved

by myriad various worldwide regulatory agencies.

The device we chose for AirAura is manufactured by Quatech of Hudson, Ohio

USA, model number WLNG-ET-DP501 and is shown in the photo below.

This device is a wired to wireless Ethernet

bridge. Ethernet bridges incorporate Network

Address Translation, or NAT, into their router

schemes in order to be able to sort out traffic

to/from the two sides of the bridge. The

module is compliant with NAT3 standards.

NAT requires that the IP addresses on each

side of the interface be different so that it

knows what data to forward to which port. If you’ve been remembering what

you’ve previously read in this document you’ve probably also noticed that the

factory default IP addresses for the remote GUI are different for AirAura’s wired

and wireless interfaces. According to NAT rules, this configuration is a must!

The wireless interface is equipped with two diversity transmit and receive

antennas in order to provide maximum operational range. The antennas supplied

with the AirAura product are type approved for use with the module.

The module supports worldwide WiFi frequency bands and channel assignments.

The frequency band to use can be configured within the web-based configuration

dialog by selecting the region where the module will be used.

Selecting a region automatically brings up the correct frequencies and channels

approved for use in that region.

As shipped from our factory the module is configured to use the United States

approved frequency bands but may be factory configured to utilize other bands

upon request.

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Vorsis AirAura Specifications Page 51