RFM products are now Murata products WIT2450M2 Features: Benefits: High speed wireless serial data Suitable for point-to-point and point-to- transmission multipoint networks Robust 2.4 GHz frequency hopping High immunity to interference and Low-Cost spread spectrum technology multipath fading 3.3 volt operation Easy to integrate FHSS Small size, light weight Worldwide license-free operation Certified for unlicensed operation in the RoHS Compliant Transceiver USA, Canada and Europe Low cost Module WIT2450M2 low-cost transceiver modules are designed to transmit serial data using robust 2.4 GHz frequency hopping spread spectrum (FHSS) technology. WIT2450M2 modules employ Muratas beacon-synchronized CSMA at an RF data rate of 460.8 kb/s to support a large number of remotes. WIT2450M2 transceivers are suitable for both point-to-point and point-to-multipoint networks. FHSS technology provides immunity to both interference and multipath fading. The small size and light weight of these transceiver modules make them suitable for a variety of applications. WIT2450M2 modules are certified for unlicensed operation in the USA, Canada and Europe. Shown with shield removed General Specifications RF Frequency Range 2400 to 2483 MHz Radio Certifications FCC Part 15.247, Canadian RSS-210 and European ETS 300.328 Operating Range Indoor - 450 to 900 ft, outdoor -3000 ft with dipole antenna, more than 6 miles with gain antennas Network Topologies Point-to-point and point-to-multipoint (star) Network Protocol High remote capacity CSMA with option for limited TDMA Error Detection and Correction 24-bit CRC and ARQ Serial Data Interface Asynchronous (UART) CMOS signals, 3.3 V, 5 V tolerant Serial Data Rate Up to 230.4 kb/s, software selectable RF Data Rate 460.8 kb/s Number of Frequency Channels 86 RF Bandwidth 900 kHz Transmit Power Output 10, 18 or 24 dBm, software selectable Receiver Sensitivity -92 dBm 10-5 BER Supply voltage 3.3 to 10 V, 5 to 10 V required for 24 dBm transmit power Current Consumption Remote Power Down 2 A Base Station Receive 155 mA Operation: Sleep 750 A Operation: Transmit 250 mA 24 dBm Transmit Power, Unlocked Receive 150 mA 115.2 kb/s Serial Data Rate Locked Receive 75 mA Transmit 250 mA Size 69.85 x 47.75 x 4.57 mm Weight 28 g Operating Temperature -40 C to +70 C Humidity 20% to 90% (non-condensing) 1 of 2 2010-2015 by Murata Electronics N.A., Inc. WIT2450M2 (R) 04/28/15 www.murata.comLarge Network Support WIT2450M2 modules transmit at an RF data rate of 460.8 kb/s using beacon-synchronized CSMA to support large point-to-multipoint (star) network applications. Serial communications between a WIT2450M2 module and its host can run at up to 230.4 kb/s to further speed data communication. Reliable WIT2450M2 modules provide both reliable communication and reliable operation. Using robust frequency hopping spread spectrum technology, WIT2450M2 modules provide immunity to interference and multipath fading. Using a 24-bit CRC for error detection, automatic retransmit request (ARQ) and a 3K data buffer, error-free transparent communication is automatic. Built-in data scrambling adds a measure of security. Reliable operation is assured through RFMs stringent QA processes. All WIT2450M2 modules are manufactured in an ISO9000 certified facility. Simple Simple to integrate and use, the WIT2450M2s default parameter settings work for most applications. For other applications, software control makes changing parameter settings easy. The WIT2450M2, with its small size and low power consumption, is simple to integrate into your product. The WIT2450M2s RS-232 style interface with standard 3.3 volt CMOS signal levels makes integration easy. Since WIT2450M2 modules are certified for license free operation in the USA, Canada and Europe, your WIT2450M2 based product does not have to repeat radio regulatory approval. Versatile WIT2450M2 operating parameters are configurable under software control. Even the transmitter power level can be selected using a straight- forward command set. Both point-to-point and point-to-multipoint modes are supported. Baud rates from 1.2 to 230.4 kb/s are provided for serial communication between a WIT2450M2 and its host. Measuring just 69.85 x 47.75 x 4.57 mm and weighing 28 grams, the WIT2450M2 can be integrated into fixed, portable or handheld devices with little impact on the size and weight. Connector I/O Pins Pin Signal Type Description 1 GND - Signal and chassis ground 2 TxD Input Data input to be transmitted 3 RxD Output Received data output 4 CFG Input Configuration select, used to switch radio between data and control mode 5 RTS Input Request to send input, used for receive flow control by the host 6 Sleep/DTR Input Module sleep/DTR input, sleep is active high 7 DCD Output Data carrier detect, indicates FHSS synchronization on remotes 8 CTS Output Clear to send output, used for receive flow control by the radio 9 RSSI Output Received signal strength indicator (analog signal) 13 RSSI Strobe Output High signal indicates valid RSSI 14 Power Down Input Low power mode input, active low 16 Vcc Power Positive supply - minimum 3.3 V, nominal 5.0 V, maximum 10.0 V hysical Specifications - dimensions in inches 2 of 2 2010-2015 by Murata Electronics N.A., Inc. WIT2450M2 (R) 04/28/15 www.murata.com