- Features
- AppNotes
- Dev Kit
- Buy Now
| Combining 900MHz frequency hopping technology and 500mW of transmit power, the WIT910 is the latest
in a long line of wireless OEM transceiver modules from RFM. With the same physical dimensions of the
industry-leading WIT2410 module, smaller than a business card and just 8.6mm thick, the WIT910 provides
immunity to both jamming and multipath fading. The WIT910 also provides a low power consumption mode
suitable for battery operation. |
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| Application Notes |
AN80201
Wireless Temperature Sensor |
ANM1001
A Solar Energy Harvester for Wireless Sensor Networks |
ANM1002
Sizing Solar Energy Harvesters for Wireless Sensor Networks |
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| White Papers |
Lightning and Surge Protection
Because wireless systems are typically located out of doors and have components located on towers and tall buildings, they are especially susceptible to damage from lightning. This paper explores the proper design and implementation of a communications surge protection system to reduce down time and lower liability for people and property. (~ 152 KB, Adobe PDF format.) |
RF Power Options in ZigBee™ Solutions
While ZigBee is a "low power" standard, "high power" product versions are much needed — and are very much ZigBee standard. This paper explains how the the availability of ZigBee radios with high and low RF power options is key to ZigBee's appeal in industrial settings, allowing design engineers to tie radio selection directly to an application’s requirements for range and resistance to multipath fading. |
WaveBolt System Description
The WaveBolt™ system is a fixed wireless point-to-multipoint Internet access system designed specifically for residential and small business customers in areas where DSL and cable modem access are unavailable, unaffordable or otherwise undesirable. The WaveBolt system provides data speeds comparable to ADSL. Simple to install, the WaveBolt CPE in many cases will be installed by the end user. And, where customers choose to have the CPE installed, a single, short site visit is all that is required to complete the installation. (~ 162 KB, Adobe PDF format.) |
Wireless Communications for Industrial Applications
This paper examines the unique requirements and challenges of wireless communications in an industrial setting and provides an overview of RFM wireless products designed specifically for these applications. The information presented serves as a guide for systems integrators and end users responsible for factory floor automation, industrial/PLC control, SCADA, telemetry and related data communications applications. (~ 136 KB, Adobe PDF format.) |
Wireless Transceivers—Make or Buy?
In choosing to add wireless data capability to a new or existing product, every designer faces a critical decision: whether to engineer the functionality in-house or buy a ready-made module for the application. This paper provides a cost analysis to explore the relative merits of each approach. (~ 160 KB, Adobe PDF format) |
ZigBee Wireless Transceiver Engineering Options
ZigBee's mesh networking capability, which compensates for obstructions and reduces range requirements, is especially prized in industrial applications. But with a technology this new, how can the RF designer best realize a successful ZigBee implementation? This white paper provides a brief, realistic assessment of ZigBees value in industrial environments, examines the types of components available today at the chip and module level, and discusses the practical considerations to be weighed in deciding to pursue ZigBee mesh networking in a specific application. |
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| Case Studies |
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Digital sign control
A maker of commercial electronic signs chose RFM HopNet wireless serial modems to replace costly cabling runs. |
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Heavy duty automation
Wireless communications from databases to crane scales automate aluminum manufacturing. |
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Parking control
Upgrading a parking facility to monitor space availability without cutting cable trenches. |
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| Developer Kits |
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| Each WIT OEM Module Developer’s Kits contain two selfcontained wireless modems built around specific
OEM modules. Additionally, two OEM modules are included in the kit. The self-contained units allow
developers to get up and running quickly using standard RS-232 interfaces without having to build a 3.3V
level serial interface. The self-contained modems include LEDs to provide modem status information visually,
and a built-in rechargeable battery pack allows the developer to use the modems without being tethered to a
power source. This provides a simple way to test the range of the radios. Other than the true RS-232 signals
of the serial interface, the self-contained modems operate exactly as the OEM modules.
Developer’s Kits Contents:
• 2 ea. Enclosed Desktop Modem
• 2 ea. OEM Module
• 2 ea. 4” RF Cable
• 4 ea. Right Angle Rubber Flex Antenna
• 2 ea. Power / Data Cable
• 2 ea. Wall Mount Power Supply/Charger
• Configuration Software
• Integration Guide |
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| RFM Part |
Frequency |
Description |
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| (2) HN-591 serial modems with flow control indicators, RS-232 interface, battery pack, power supply, dipole antenna, (2) WIT910M modules, RF cables, antennas and programming software |
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RFM products are sold through a world-wide network of manufacturer's sales reps and distributors.
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download data sheet
Rev Date 06/05/08