User's Manual

ManualsBrandsJay Electronique ManualsElectronicsRF module

T940-HOM-004-Module

integration

manual_Rev3.docx

Date:

April 24

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

Summary of content (7 pages)

PAGE 1
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.
PAGE 2
Quick Reference Data Parameter Frequency band Number of channels Channel bandwidth Data rate Max output power (typ.) Sensitivity Supply voltage Current consumption, RX Current consumption, TX Jay RF Module 911.8 – 918.2 64 25 4.8 -8 -114 2.8 – 5.5 31 37 Units MHz kHz kbits/s dBm dBm Volts mA 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.
PAGE 3
Pin Description Pin no 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Pin name EN_PA PWRF2 RTS_TXEN_RADIO CTS/RXTX/RXEN_RADIO VAccu GND SPI_uc_SCK/ON_OFF SPI_uc_MISO SPI_uc_MOSI RESET_RADIO SEL_FILLE SPI_uc_NSS/CONFIG_RADIO RSSI_RADIO DATA_RX DATA_TX GND RF Description PA enable input, active high Not used Not used UART Clear to Send Supply voltage input System ground SPI Clock SPI MISO SPI MOSI Reset Not used SPI Chip Select Not used UART RX Data UART TX Data System ground RF I/O connection to antenna T940-H
PAGE 4
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.
PAGE 5
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.
PAGE 6
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.
PAGE 7
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.