25 Series RF Transceiver Module

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

Part	Description	Documentation	Stocking
TRM-915-R25	900MHz 25 Series Transceiver, 25mW	TRM-915-R25 Data Guide	Availability
EVM-915-025-FCS	900MHz 25 Series Evaluation Module, Straight RP-SMA Connector, Pre-Certified	EVM-915-025 Data Guide	Availability
EVM-915-025-FCR	900MHz 25 Series Evaluation Module, Right Angle RP-SMA Connector, Pre-Certified	EVM-915-025 Data Guide	Availability

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