Jay Electronique SB User Manual
T940-HOM-004-Module
integration
manual_Rev4.docx
Date:
November 21, 2016
Module integration manual
Product Description
The RF module with the FCCID number OQMSB 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_Rev4.docx
Date:
November 21, 2016
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
Quick Reference Data
* Programmable. Maximum allowed radiated power under FCC CFR 47, part 15 is -1 dBm ERP.
Typical Application Circuit
T940-HOM-004-Module
integration
manual_Rev4.docx
Date:
November 21, 2016
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
Pin Description
T940-HOM-004-Module
integration
manual_Rev4.docx
Date:
November 21, 2016
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_Rev4.docx
Date:
November 21, 2016
FCC
The OEM integrators are responsible for ensuring that the end-user has no manual instructions to remove or
install module.
The module is limited to OEM installation ONLY
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.
These following instructions/statements shall be reported on the User Manual:
Any changes or modifications to this equipment not expressly approved by JAY electronique may cause,
harmful interference and void the FCC authorization to operate this equipment
This equipment complies with FCC’s radiation exposure limits set forth for an uncontrolled environment under
the following conditions:
1. This equipment should be installed and operated such that a minimum separation distance of
20cm is maintained between the radiator (antenna) and user’s/nearby person’s body at all
times.
2. This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
The RF module has been certified for mobile and fixed applications. If the module will be used for portable
application the device must undergo SAR testing and the following instructions shall be reported on the User
Manual.
The separate approval is required for all other operating configurations, including portable
configurations with respect to Part 2.1093 and different antenna configurations.
If SAR measurement is not required:
This portable equipment with it’s antenna complies with FCC’s radiation exposure limits set forth
for an uncontrolled environment. To maintain compliance, follow the instructions below :
1. This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
2. Avoid direct contact to the antenna, or keep contact to a minimum while using this equipment.
If SAR measurement is required:
This portable equipment with it’s antenna complies with FCC’s radiation exposure limits set forth
for an uncontrolled environment. This equipment has shown compliance with FCC’s Specific
Absorption Rate (SAR) limits. To maintain compliance, follow the instructions below :
1. This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
T940-HOM-004-Module
integration
manual_Rev4.docx
Date:
November 21, 2016
Authorized antennas:
T940-HOM-004-Module
integration
manual_Rev4.docx
Date:
November 21, 2016
Antenna FR05-S1-R-0-105
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