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SEM910DX
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900 MHz Ethernet Bridge
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Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.
Features:
• High Speed: Up to 150Kbps throughput
• Network Ethernet devices (sensors,
PLCs, computers) wirelessly
• Long Range: 20+ miles using an omnidirectional
antenna
• Proven frequency hopping technology
• Standard Ethernet 10/100BaseT interface
• 40OC to + 70OC operation
Benefits:
• Excellent immunity to jamming and
multi-path fading
• No user site license required
• Packaged for rugged industrial use
• Allows for deployment in hazardous
locations
• Reliable performance in high RF noise
environments
Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.
download
data sheet
Rev Date 03/14/08
download product manual
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- Features
- AppNotes
- Buy Now
| The SEM910 family of products are high speed/long range wireless networking products from RFM. Operating in the license-free 900MHz band,
the SEM-series is designed to provide high-speed wireless connectivity between Ethernet devices over 20+ mile distances. Typical uses include
Ethernet bridging, SCADA networks, PLC networking, and other industrial automation or data collection applications. |
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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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RFM products are sold through a world-wide network of manufacturer's sales reps and distributors.
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Click to Download
