Hexing Electrical MJN916 DCU HexNet User Manual

Hexing Electrical Co.,Ltd DCU HexNet Users Manual

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MJN916 User Manual HTML Version

Users Manual

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DCU HexNet

（MJN916）

User Manual

Version Maker Date

V0.0.1 WangGang 2017.01.20

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HexingElectricalCo.,Ltd.

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〉〉〉DCU HexNet（MJN916）

1.Product Introduction

The DCU HexNet is a highly integrated half-duplex micropower wireless

data transmission device.The DCU HexNet embedded high-performance RF

chip.User programming has very good flexibility. DCU HexNet operating

frequency include 916.25-926.65MHz. The real figure as shown in the figure

below.

This DCU HexNet is mainly used in power system, electricity

information collection system.Mainly include the following equipments：

Data Collector，Data concentrator，etc.

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2.RF Module Chip Block Diagram

3.RF Module Pin Definition

Pin number Signal nameSignal categorySignal direction

1,2GNDGNDI

3,4VCCPowerI

5RXDUarttransmitPinO

6TXDUartreceivePinI

7D3.3VPowerO

8//N

9/RSTRESETPinI

10‐22//N

5. RF operation

Insert the HexNet on user’s device，can use uart to communicate with HexNet.User

don’t change anyting of the device，they will very easy to set up their communication

network.

6. Installation instructions

1）Please insert MJN916 on the corresponding interface, and ensure the pin interface

definitions are consistent with MJN916.

2）Interfaces are defined as follows：

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13579

2468

PIN Interface

definition

Signal

category DirectionDescription

1,2GNDGNDGND

3,4VCCPower

Communicationmoduleanalog

partofthepowersupply,voltageis

5vto15V.

5RXDSignalI

Communicationmoduledata

reception(3.3VTTLlevel),serial

portcommunicatingwiththebase

table.Receivetomodule

6TXDSignalO

Communicationmoduledata

(TTL3.3Vlevel),serialport

communicatingwiththebase

table.Sendfrommodule

7D3.3VPower

Powerprovidedbythemodule,

communicationmoduleofdigital

partofpower,voltageof3.3V+/‐

5%,theminimumcurrent50ma,

withVCCpowersupply,the

isolationopticalcouplingusedto

drivethecommunicationinterface.

8///Reserved

9/RSTResetI

Resetmodule(lowleveleffectively,

effectiveleveltime100

milliseconds)

3）Equipment flip cover and seal

4）Terminal equipment using the lid well

5）Provide equipment machine right alternating current (AC) on the site

6）Equipment terminal cover screw to play well, and make seal

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Installedinthesample

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Installedinthesample

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Installedinthesample

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DCU models only for reference.

Note：

1 Thank you for using products of Hexing Electrical Co., Ltd. Please read this

warning before using our products. If you have already started to use is that you have

read and accept our all this.

2 All the final explanation and modification rights for all materials were reserved by

Hexing Electrical Co., Ltd.

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7. FCC Warning:

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.

FCC Radiation Exposure Statement:

To satisfy FCC RF Exposure requirements for this transmission device, a separation distance of

20cm or more should be maintained between the antenna of this device and persons during

operation. To ensure compliance, operation at closer than this distance is not recommended. The

antenna(s) used for this transmitter must not be co-located or operating in conjunction with any

other antenna or transmitter.

Hexing Electrical MJN916 DCU HexNet User Manual

Hexing Electrical Co.,Ltd DCU HexNet Users Manual

Users Manual

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