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25 Series RF Transceiver Module

25 Series RF Transceiver Module

Wireless UART RF Transceiver Module

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Not recommended for new designs. Please contact Linx about the HumPRO™ Series, which replaces the 25 Series.

  • Description
  • Specifications
  • Application Examples
  • Downloads
  • Complementary Products
  • Similar Products
The 25 Series RF transceiver module is designed for reliable bi-directional transfer of digital data over distances of up to 1 mile (1.6km) line of sight. Operating in the 902 to 928MHz frequency band, the module is capable of generating +13dBm into a 50-ohm load and achieves an outstanding typical sensitivity of -105dBm. The module implements a Frequency Hopping Spread Spectrum (FHSS) protocol along with networking and assured delivery features. It has a Universal Asynchronous Receiver Transmitter (UART) serial interface that can be connected directly to microcontrollers, RS-232 converters or USB adaptors. The module automatically handles all radio functions resulting in a UART-to-antenna wireless link. All configuration settings and data are accessed through the UART interface. The 25 Series has a compatibility mode that enables it to operate with the more powerful, longer-range 250 Series modules. This enables mixed systems where a determination between cost and range can be made.

Benefits

  • Easy integration: a complete radio, protocol and UART interface results in a complete UART-to-antenna solution
  • High reliability: high power and a FHSS protocol combined with networking and assured delivery combine to create a robust system
  • Low overhead: all configuration settings are done through the UART interface and the built in protocol handles all over-the-air functions, so very little software development is required
  • Simplify design: modules and antennas are the only RF components you need; no tuning required
  • Streamline production: save time and money with modules that are already tested
  • Pre-certified: Evaluation modules are already certified

Ordering

PartDescriptionDocumentationStocking
TRM-915-R25900MHz 25 Series Transceiver, 25mW Datasheet
EVM-915-025-FCS900MHz 25 Series Evaluation Module, Straight RP-SMA Connector, Pre-Certified Datasheet
EVM-915-025-FCR900MHz 25 Series Evaluation Module, Right Angle RP-SMA Connector, Pre-Certified Datasheet

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Stocking and pricing information based on available distributor data and is for reference only. Visit distributor website for purchasing information.

Get a Quote from Linx

To order, please call +1 (800) 736-6677 or +1 (541) 471-6256 for callers outside the United States.

TRM-915-R25
RoleTransceiver
Frequency902 – 928MHz
TX power-2 – +13dBm
RX sensitivity-105dBm typical
InterfaceUART
ModulationFSK
Operating voltage3 – 3.6VDC
Supply currentTX @ 13dBm: 65mA typical TX @ -2dBm: 30mA typical RX: 20mA typical
Standby current2.1mA typical
Sleep current3µA typical
Operating temperature-40 – +85°C
PackageReflow-compatible SMD
ArchitectureSynthesized
ProtocolBuilt in FHSS with CSMA, networking and assured delivery

Application Examples

  • Home and industrial automation
  • Automatic meter reading (AMR)
  • Wireless sensor networks
  • Security systems
  • Long-range data links

Downloads

Manuals & Datasheets

  • TRM-915-R25 Data Guide
  • EVM-915-250 Data Guide

Application Notes

  • Application Notes 902-928MHz

    • Guide to Wireless Regulations in the United States (FCC Resource Document)
    • RF 101: Information for the RF Challenged (AN-00100)
    • Considerations for Operation within the 902 MHz to 928 MHz Band (AN-00126)
    • Data and Bidirectional Transmissions under Part 15.231 (AN-00128)
    • Modulation Techniques for Low-Cost RF Data Links (AN-00130)
    • The FCC Road: Part 15: From Concept to Approval (AN-00140)
    • Antennas: Design, Application and Performance (AN-00500)
    • Understanding Antenna Specifications and Operation (AN-00501)

Complementary Products

CW Series Antennas
CW Series Antennas
RH Series Reduced-Height Antennas
RH Series Reduced-Height Antennas
uSP Series microSplatch® Antennas
uSP Series microSplatch® Antennas
SP Series Splatch® Antennas
SP Series Splatch® Antennas
RP-SMA Connectors
RP-SMA Connectors

Similar Products

HumPRO® Series RF Transceiver Module
HumPRO® Series RF Transceiver Module
HumPRO® Series RF Transceiver Master Development System
HumPRO® Series RF Transceiver Master Development System
HumDT™ Series RF Transceiver Module
HumDT™ Series RF Transceiver Module
HumDT™ Series RF Transceiver Master Development System
HumDT™ Series RF Transceiver Master Development System

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Linx Technologies

159 Ort Lane
Merlin, OR, US 97532
Toll Free: 1-800-736-6677
Intl: 1-541-471-6256
Fax: 1-541-471-6251
contact@linxtechnologies.com
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