Jay Electronique SA RF module User Manual USERS MANUAL

Jay Electronique RF module USERS MANUAL

USERS MANUAL

T940-HOM-004-Module integration manual_Rev3.docx Date: April 24th 2014 24-04-2014 Module integration manual Product Description The RF module with the FCCID number OQMSA is a compact high performance module for 25 kHz narrow band 2-FSK operation with embedded proprietary protocol. The modules are completely shielded and certified for operation under the US radio regulations for license-free use. Applications Remote controlled machines Cranes Features  Smallest in the world (50 x 39 x 0.7 mm)  25 kHz narrow band multi-channel operation  Very low current consumption  Addressing and Error check  No external components  Easy to use data interface  Wide supply voltage range, 2.8 – 5.5 V  Conforms with FCC CFR 47 part 15
T940-HOM-004-Module integration manual_Rev3.docx Date: April 24th 2014 24-04-2014 Quick Reference Data Parameter Jay RF Module Units Frequency band 911.8 – 918.2 MHz Number of channels 64 Channel bandwidth 25 kHz Data rate 4.8 kbits/s Max output power (typ.) -8 dBm Sensitivity -114 dBm Supply voltage 2.8 – 5.5 Volts Current consumption, RX 31 mA Current consumption, TX 37 mA * Programmable. Maximum allowed radiated power under FCC CFR 47, part 15 is -1 dBm ERP. Typical Application Circuit
T940-HOM-004-Module integration manual_Rev3.docx Date: April 24th 2014 24-04-2014 Pin Description Pin no Pin name Description 1 EN_PA PA enable input, active high 2 PWRF2 Not used 3 RTS_TXEN_RADIO Not used 4 CTS/RXTX/RXEN_RADIO UART Clear to Send 5 VAccu Supply voltage input 6 GND System ground 7 SPI_uc_SCK/ON_OFF SPI Clock 8 SPI_uc_MISO SPI MISO 9 SPI_uc_MOSI SPI MOSI 10 RESET_RADIO Reset 11 SEL_FILLE Not used 12 SPI_uc_NSS/CONFIG_RADIO SPI Chip Select 13 RSSI_RADIO Not used 14 DATA_RX UART RX Data 15 DATA_TX UART TX Data 16 GND System ground 17 RF RF I/O connection to antenna
T940-HOM-004-Module integration manual_Rev3.docx Date: April 24th 2014 24-04-2014 Block Diagram The module contains a communication controller with embedded proprietary protocol software, a narrow band high performance RF transceiver and three internal voltage regulators. The communication controller handles the radio packet protocol. Data to be sent by the host is received at the DATA_RX pin and buffered in the communication controller. The data packet is then assembled with preamble, synchronization word and data with CRC check sum before it is transmitted on RF. The asynchronous UART interface consists of DATA_TX, DATA_RX and CTS/RXTX/RXEN_RADIO signals and it is used for hardware handshake flow control. The RF transceiver modulates the data to be transmitted on RF frequency, and demodulates data that are received. Narrow band technology is used to enhance sensitivity and selectivity. The supply voltage is connected to the VAccu pin. The module contains three internal voltage regulators and can therefore operate over a wide supply voltage range.
T940-HOM-004-Module integration manual_Rev3.docx Date: April 24th 2014 24-04-2014 Authorized antennas  External antenna: Product reference: VUB884. This antenna is designed by Jay Electronique. Antenna gain: 0 dBi @ 915 MHz  Printed antenna: Product reference: FR05-S1-R-0-105. Brand name: Fractus Frequency Range: 902 - 928 MHz Antenna gain: > 0 dBi
T940-HOM-004-Module integration manual_Rev3.docx Date: April 24th 2014 24-04-2014 External antenna installation requirements The external antenna must be installed at a distance from the class 3 cables and power components (power supply, motor, variable speed drives …) while remaining in an area which is favourable to radio reception. It must be located at a certain height. No metal object which could form a screen should be located in front of the external antenna (risk of communication cut-out).
T940-HOM-004-Module integration manual_Rev3.docx Date: April 24th 2014 24-04-2014 Labelling !! Warning !! “This transmitter module is authorized to be used in other devices only by OEM integrators under the following conditions: 1. The antenna(s) must be installed such that a minimum separation distance of 20cm is maintained between the radiator (antenna) & user’s/nearby person’s body at all times. 2. The transmitter module must not be co-located with any other antenna or transmitter.” Moreover, the host equipment must be labelled as follows: “Contains Transmitter Module FCC ID: OQMSA” Finally, the host equipment must precise the following warning: “This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.” Information Note This modular is used exclusively by Jay Electronique. The OEM integrators are responsible for ensuring that the end-user has no manual instructions to remove or install module. This module and the antennas must be professionally installed. A specific ferrite must be attached to the AC line; here its characteristics below:  Brand name: Laird Technologies  Product reference: 28B0686-200  Number of turns: 2 “THE GRANTEE IS NOT RESPONSIBLE FOR ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.” According to FCC Part 15.21

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