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HNIO-241RR
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2.4 GHz I/O Radio
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Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.
• Remotely control industrial relays
• Remotely monitor contacts/digital inputs
• Multipoint, bidirectional operation
• Four I/O channels, up to 4 remotes
• Fully configurable through DIP switches
• FHSS technology at 460.8 kb/s
• Class I Div 2 certified
• 2.4 GHz operation
• Operates over an input voltage range of
+9 to +30 Vdc making it suitable for
battery and solar power sources
Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.
download
data sheet
Rev Date 05/14/08
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- Features
- AppNotes
- Buy Now
| HNIO-241R series modems are used to remotely control 250 VAC, 5 A industrial relays and to
remotely monitor digital inputs such as switch and contact closures using highly robust 2.4 GHz
FHSS radio technology. An HNIO network consists of a base station and one to four remotes. Each
HNIO-241R series modem has four digital inputs and four relay outputs. Each digital input in a base
station can be configured to control a specific relay in a specific remote. Likewise, each relay output
in the base station can be controlled by one digital input in one remote. A fully implemented network
provides four bidirectional control channels between the base station and its remotes. HNIO-241R
series modems are Class 1 Div 2 certified. HNIO-241R wireless networks provide a convenient and
economical means to remotely control industrial relays and to remotely monitor digital inputs in a
wide variety of industrial and commercial 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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