July 3, 2013 — Designed for dependable bi-directional transfer of digital data, the
25 Series RF transceiver module is capable of transmitting over distances of up to 1 mile (1.6 km)
line of sight. Operating in the 902 to 928 MHz ISM (Industrial Scientific and Medical) frequency band, the
module is capable of generating +13 dBm into a 50 ohm load and achieves an outstanding typical sensitivity
of –105 dBm. Regulations in the country of operation dictate the maximum legal output power, so the final system
range may be less depending on the country of operation.
25 Series 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, RS-485 converters or USB adaptors. The module automatically handles all radio
functions resulting in a UART-to-antenna wireless link.
The transceiver has a robust built-in protocol. A
Carrier Sense Multiple Access (CSMA) algorithm makes sure the channel is clear before sending data. Networking and
assured delivery enable many system configurations. The transceiver contains several registers, accessed through
the UART, that control its configuration and operation.
Common applications for the 25 Series transceiver
module that require reliable digital date transfer include asset tracking, automated meter reading, wireless sensors
and industrial as well as home automation.
An evaluation module is available that has the module on a board
with an antenna connector and voltage regulator. This module has obtained United States FCC certification and greatly
reduces the expense and time to implement a wireless solution.
For more information about the 25 Series RF
Transceiver, call Linx at +1 800 736 6677 (+1 541 471 6256 outside the United States) or visit
About Linx Technologies
Linx Technologies makes wireless simple by developing and manufacturing wireless products that are easy
of all skill levels to use. The company’s RF modules, remote controls, antennas and connectors make it easy for
engineers to integrate wireless features without the hassle and expense of engineering RF functionality from scratch.
For customers who need help implementing Linx modules, Linx offers design services including board layout assistance,
programming, certification advice and packaging design. For more complex RF solutions, Apex Wireless, a division
of Linx Technologies, creates optimized designs with RF components and firmware selected for the customer’s application.
159 Ort Lane
Merlin, OR, US 97532
Phone: +1 800 736 6677
+1 541 471 6256 (outside U.S.)
Fax: + 1 541 471 6251
Posted July 4, 2013