Star Wi-SUN MJ001-01 Manual de usuario

Product Manual

MJ001-01

Wi-SUN Module

Shenzhen Star Instrument Co., Ltd.

Content

1. Overview .....................................................................................................................................3

1.1 Electrical parameters ............................................................................................................ 3

2. Interface ...................................................................................................................................... 3

2.1 Module pin definition ........................................................................................................... 4

2.2 Hardware interface description ............................................................................................ 5

2.2.1 External power supply ...............................................................................................5

2.2.2 Reset .......................................................................................................................... 5

2.2.3 SPI ............................................................................................................................. 6

2.2.4 Module status indicator ............................................................................................. 6

2.2.5 UART.........................................................................................................................6

2.2.6 Event detection .......................................................................................................... 6

2.2.7 Debug print ................................................................................................................6

3. Antenna Design Suggestions ......................................................................................................6

4. Product Material Object ............................................................................................................. 7

1.Overview

MJ001-01 module is a radio frequency communication module of Wi-SUN protocol

developed by Shenzhen Star Instrument Co., LTD. The module consists of the SOC and its

peripheral circuit that integrates RF transceiver and Wi-SUN protocol processing, and adopts

serial interface for data and instruction interaction with user devices, which can conveniently

provide users with fast Wi-SUN protocol wireless terminal communication and other services.

The size of MJ001-01 module is 37mm*18.9mm*4.0mm. It has the features of minimal size,

low power consumption, and long transmission distance. It is suitable for automatic meter reading

system of interconnection under Wi-SUN protocol framework.

1.1 Electrical parameters

Main Parameters

Performance

Remarks

Operating voltage

1.8～3.8 V

3.3V is recommended.

Operating frequency

902～928MHz

Initial frequency

deviation

± 10 kHz

Frequency deviation at

room temperature

TX current

≤150mA

It is recommended that

the power supply

capacity be more than

300mA.

RX current

≤15mA

Sleep state

≤3uA

TX Power

Max 15.95dBm

RX sensitivity

-106dBm (Average)

Datarate:50 kbps,

BER:≤ 0.1%,2GFSK

Modulation mode

OOK, (G)FSK

Programmable

Communication rate

0.1 to 1000 kbps

Programmable

Harmonic

characteristic

＜-42dBm

Operating temperature

-40～+85 ℃

2.Interface

When the module is connected to the user mainboard, it mainly includes serial port interfaces,

reset, event detection, debug printing, status output, and power supply interfaces, etc.

2.1 Module pin definition

Pin No.

Pin Name

Pin Definition

Description

VDD

Reserved module power

supply pin

Only 1W high power module is

effective

2、

16、

29、

30、31

GND

Ground pins

RESET

Module reset input pin

3.3V TTL level

POWER_CHK

Module power failure

detection pin

The comparator interrupt is inside

the module chip.

EVEN_IN

Event trigger signal input

UART2_RX

Input pin of serial port

UART2

Reserved UART serial port

UART2_TX

Output pin of serial port

UART2

SWO

DEBUG output pin SWO

Debugging and firmware

download ports. SWO is reserved

for advanced simulation ports to

show simulation process

information, which is also

optional.

SWDIO

DEBUG data input and

output

SWCLK

DEBUG clock input

Dout_BER

BER test demodulation

data outlet

Only used for receiving

sensitivity BER test

Flash_CS

External Flash chip

selection output

3.3V TTL level signal

Flash_CLK

External Flash clock

output

Flash_MISO

External Flash data input

Flash_MOSI

External Flash data

output

3.3Vp

3.3V power output

Module 3.3V power input pin

UART1_RX

Input pin of serial port

UART1

Serial port for communication

with electricity meter and DCU,

3.3V TTL level

UART1_TX

Output pin of serial port

UART1

LED_STATE

State indicator control

output

3.3V TTL level

LED_TX

TX indicator control

output

LED_RX

RX indicator control

output

UART0_RX

Input pin of serial port

Debug print output serial port,

UART0

3.3V TTL level

UART0_TX

Output pin of serial port

UART0

PA0

Reserved data port

PD15

Reserved data port

PD14

Reserved data port

PD13

Reserved data port

ANT

Antenna interface

Pay attention to the 50Ω

impedance control for external

wiring.

2.2 Hardware interface description

When designing the hardware of the MJ001-01 module, select and design the required

interfaces and peripheral circuits according to the actual application. The application interfaces of

the MJ001-01 module are as follows:

External power supply

Reset

SPI

UART

Module status indicator

Event detection

Debug print

2.2.1 External power supply

Before using the module, the user must first ensure that the external power supply has

sufficient power load capacity and the power supply range must be strictly controlled between

1.8V and 3.8V. If the value is higher than the power supply range of the module, the main chip of

the module will be damaged. If the value is lower than the power supply range of the module, the

RF circuit will be affected and the maximum output power cannot be guaranteed.

2.2.2 Reset

The reset pin is a low level reset. The module will be reset if the user provides a low pulse of

at least 1ms to the NRST pin (or directly pulling down). It is suggested to add a 4.7kΩ resistance

to the power supply in normal mode.

2.2.3 SPI

The SPI interface is a four-wire SPI, which can be used for modules to extend an external

FLASH storage or be taken as other communication interfaces.

2.2.4 Module status indicator

The pins of the module status indicator are pin20 LED_STATE, pin21 LED_TX and pin22

LED_RX, which are respectively the module working status indicator, RF signal sending indicator

and receiving indicator, and external LED indicator. They are both common-anode connections.

2.2.5 UART

The UART serial port is used for the module to communicate with and exchange data with

the external working platform.

2.2.6 Event detection

The event detection interface detects the event output of the external application function

circuit, such as the power failure event along with the reporting of other function events.

2.2.7 Debug print

With the Debug interface, you can simulate and burn the firmware of the SOC chip of the

module, and the system running information can be output through the print interface, so that you

can see the running information directly.

3.Antenna Design Suggestions

Antenna design is directly related to the communication performance of the product.

Different types of antennas are selected for different terminals according to the antenna size, cost,

and performance. Common short-range antennas include PCB antenna, chip (ceramic) antenna,

spring antenna, whip antenna, etc. When selecting an antenna, the following most important

parameters should be considered: radiation variation in different directions around the antenna,

antenna efficiency, bandwidth required for antenna operation, and power to be provided to the

antenna, etc. The typical definition of antenna bandwidth is the frequency range where the

reflected wave attenuation is less than -10dB or VSWR is less than 2, that is, the frequency range

where the reflected power of the antenna is less than 10%.

4. Product Material Object

Module size: 37mm*18.9mm*4.0mm, and the actual product is as follows:

The front view:

The back view:

Integration instructions for host product manufacturers according to KDB 996369 D03

OEM Manual v01

5.1 List of applicable FCC rules FCC Part 15 Subpart C 15.247

5.2 Specific operational use conditions.

This device is intended only for OEM integrators under the following conditions:

1) The transmitter module may not be co-located with any other transmitter or antenna. As long as

the condition above is met. further transmitter test will not be required. However, the OEM

integrator is still responsible for testing their end-product for any additional compliance

requirements required with this module installed.

IMPORTANT NOTE: In the event that these conditions can not be met (for example certain laptop

configurations or co-location with another transmitter), then the FCC authorization is no longer

considered valid and the FCC ID can not be used on the final product. In these circumstances, the

OEM integrator will be responsible for re-evaluating the end product (including the transmitter)

and obtaining a separate FCC authorization. The OEM integrator has to be aware not to provide

information to the end user regarding how to install or remove this RF module in the user’s

manual of the end product which integrates this module. The end user manual shall include all

required regulatory information/warning as show in this manual.

5.3 Limited module procedures.

Additional testing and certification is necessary when specific host originally granted with this

module. This module is Limited single modular , host manufacturer have to consult with module

manufacturer for the module limiting conditions when integrate the module in the host. module

manufacturer should reviews detailed test data or host designs prior to giving the host

manufacturer approval.

5.4 Trace antenna designs .Not applicable .

The module may be operated only with the PCB antenna with which it is authorized.

5.5 RF exposure considerations Co-located issue shall be met as mentioned in “Specific

operational use conditions”. Product manufacturer shall provide below text in end-product manual

“Radiation Exposure Statement: The product comply with the US portable RF exposure limit set

forth for an uncontrolled environment and are safe for intended operation as described in this

manual. The further RF exposure reduction can be achieved if the product can be kept as far as

possible from the user body or set the device to lower output power if such function is available.”

5.6 Antennas Model name: PCB on-board antenna

Antenna type:PCB antenna

Antenna gain:1.71dBi

5.7 Label and compliance information

Product manufacturers need to provide a physical or e-label stating “Contains FCC ID:

2A2X4-MJ001-01” with finished product

5.8 Information on st modes and additional testing requirements

Test tool: SSCOM V5.13.1 shall be used to set the module to transmit continuously

5.9 Additional testing , Part 15 subpart B disclaimer

The module is only FCC authorized for the specific rule parts listed on the grant, and that the host

product manufacturer is responsible for compliance to any other FCC rules that apply to the host

not covered by the modular transmitter grant of certification. The final host product still requires

Part 15 Subpart B compliance testing with the modular transmitter installed.

5.10 FCC Requirement

Any changes or modifications not expressly approved by the party responsible for compliance

could void the user’s authority to operate the equipment.

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.

Note: This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation. This equipment generates, uses,

and can radiate radio frequency energy, and if not installed and used in accordance with the

instructions, may cause harmful interference to radio communications. However, there is no

guarantee that interference will not occur in a particular installation. If this equipment does cause

harmful interference to radio or television reception, which can be determined by turning the

equipment off and on, the user is encouraged to try to correct the interference by one or more of

the following measures:

–Reorient or relocate the receiving antenna.

–Increase the separation between the equipment and receiver.

–Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

–Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled

environment. This equipment should be installed and operated with a minimum distance of 20cm

between the radiator & your body. This transmitter must not be co-located or operating in

conjunction with any other antenna or transmitter.

“CAUTION: Any changes or modifications not expressly approved could void the user’s

authority to operate the equipment.”

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