Jizhuo User`s Manual
Contents
1. amp x Jizh gt eet SHENZHEN JIZHUO TECHNOLOGY CO LTD J Z875 M icro power wireless Data module User s M anual DVER 2 0 SHENZHEN JIZHUO TECHNOLOGY CO LTD TEL 86 755 83304518 805 M obile 86 13692285161 FAX 86 755 83302824 Website http www jizhuo com E mail sale jizhuo com M SN shenzhen_jizhuo hotmail com Address NO 813 212BLD Tairan Tech Park Futian District Shenzhen C hina Post C ode 518040 Us Technol ogy J Z875 M icro power wireless data module J Z875 M icro power wireless Data module JZ875 data transmission module is highly integrated low power half duplex wireless data transmission module which uses TI high performance RF chips and high speed microcontroller Module provides 16 channels and is equipped with professional set up software for the user to change parameters the module with transparent transmission mode no user written set and transmission procedures you can transmit data of any size Module size is small industrial design the use of voltage is wide easy to use Applications X Water electricity gas heating automatic meter reading system Wireless smart terminal PDA Wireless Queue System Wireless alarm and security system X Smart Card gt x Medical and electronic instrumentation automation control gt Intelligent teaching equipment X Intelligent home automation and lighting control gt Wireless electronic scale SHENZHEN J IZHUO TECH2. to re set onverters module pc with connection error x x Power supply ripple big replace the power supply Note All of the rights of final interpretation and modification by our company SHENZHEN J IZHUO TECHNOLOGY CO LTD TEL 0755 83304518 83308451 Tech 0755 61319411 61319410 WEB http www jizhuo com 10
3. ECHNOLOGY CO LTD TEL 0755 83304518 83308451 Tech 0755 61319411 61319410 WEB http www jizhuo com 4 p i tw Technol ogy J Z875 M icro power wireless data module Module with customer equipment connections Note J Z875 did not sleep in the state the module of the SLE feet must be vacant In the sleep state when the module must be low the module can send and receive data Module with PC connections TTL TO RS232 TX e202 TXO RK R5232 RXD PC with PS252 ITL to RS232 converter Note As J Z875 mode TTL interface module so the PC must be added to connect the TTL to R S232 converter and converter must supply DC 5V of electricity SHENZHEN J IZHUO TECHNOLOGY CO LTD TEL 0755 83304518 83308451 Tech 0755 61319411 61319410 WEB http www jizhuo com 5 J Zhuo Technol ogy J Z875 M icro power wireless data module For software testing and change parameters RF Nodule Radio software Y3 06 BEA T come Qsearchs stop Q Read EF write Ca Exit 0 Radio Parameters Transmit Both Sides Data transmit Please Choose Model Base Fre or Search FIRST Modell 7875 Base fre 433MHZ D Channel and Frequency Serial Number Channel P Head Write 2 D Write CON Option Frequend434 6940MHZ RF Baud Rate COM Port Ry Baud Rat 9600 Read 3 Wirite 4 Baud Rate 9600 COM Parameters Verity NONE M S J9600 D Baye Rat Read s ritet Data Bits Verify NONE Begin Bits d Sto
4. NOLOGY CO LTD Tech 0755 61319411 61319410 Features X Frequency 430 434MHz X Distance 2 10KM 1200Bps gt x M odulation G F SK X Transparent transmission X Built in watchdog to ensure long term reliable operation X UART TTL RS232 RS485 Interface X Convenient and flexible X Almost 512bytes data buffer X Suitable for built in installation TEL 0755 83304518 83308451 WEB http www jizhuo com Us Technol ogy J Z875 M icro power wireless data module JZ875 wireless module the use of ISM frequency band can be set to 16 communication channels transmit power 1 2W 30dB 33dB high receiver sensitivity 123dbm size 90mm 64mm 23mm without antenna base a large number of the billing system industrial control field use very convenient for users to do the embedded wireless systems JZ875 the use of transparent transmission in order to ensure the reliability and stability of the user s system plus the transmission checksum or CRC checksum error detection mode the error data retransmission Transceiver module buffer of 512bytes means that users can be in any state 512bytes of data transfer 1 when the speed is greater than the serial port is set to air rate is theoretically unlimited length can send information packets but does not recommend users to send long data packets the proposed length of each packet data between 60 100B generally not longer than the 120B and recommended user program using th
5. Transmit Currenti lt 1 5A TTL x Receive C urrent lt 45mA x Sleep Current lt mA x x Channel Rate x 1200 2400 4800 9600 19200 38400Bit s customized x x Serial Port Rate x 1200 2400 4800 9600 19200 38400Bit s customized x x Interface UART TTL RS232 RS485 x x Working Temperature x x x Working humidity x 10 90 Relative humidity non condensing x x Size x 90mm 64mm 23mm x Communicated Modell JZ875 JZ875 JZ873 JZ874 JZ875 JZ878 SHENZHEN J IZHUO TECHNOLOGY CO LTD TEL 0755 83304518 83308451 Tech 0755 61319411 61319410 WEB http www jizhuo com 9 G J i Zhuo Technol ogy J Z875 M icro power wireless data module O ptional A ntenna Kr e MEARE ARARE Trouble and solve ways T rouble and solve ways x Communication at both ends of the air rate parity inconsistency Between f Frequency inconsistency devices not Without power communicat Module has destroyed ed The pin of sleep mode not set x x Environment very bad or the antenna is blocked x Short The existence of the same frequency or magnetic or electrical interference or Distance replacement of the channel away from sources of interference x x Power match or not Voltage and current is large enough x x Without power x TTL to RS232 converter is damaged or without power supply hange work channels C communicat C e with PC x x Module cant x Serial port baud rate settings are not correct or air
6. d mode SHENZHEN J IZHUO TECHNOLOGY CO LTD TEL 0755 83304518 83308451 Tech 0755 61319411 61319410 WEB http www jizhuo com se Op J i Zhuo Technol ogy J Z875 M icro power wireless data module Wake up pin block the module can send and receive data In the application of JZ875 module the module uses a wide range of voltage 5V power supply module the voltage of DC 4 5 5 5V Users in the use of power to DC power supply the current must be greater than 500mA but to choose a good power supply ripple M odule Pin definition J Z875 module 1 J 2 interfaces seat detail as follows Item No Pin Specification User Terminal Remark l GND User GND User GND n 2 5V User GND User GND ar rus s 2 TXD TTL RS232 data transmit Customer equipment receive 3 RXD TTL RS232 data receive Customer equipment transmit eege j j j 5 GND User Interface Customer equipment Interface 6 A RS 485 A 7 B EE s m sm Dimension Note the IO functions customized from C ustomer informed SHENZHEN J IZHUO TECHNOLOGY CO LTD TEL 0755 83304518 83308451 Tech 0755 61319411 61319410 WEB http www jizhuo com 3 i tw Technol ogy J Z875 M icro power wireless data module Installation Red transmit Gree n receive J2 data interface Dimension JZ875 installation EAA Trill SHENZHEN J IZHUO T
7. e ARQ mode the error data packets retransmission As follows If the actual error rate 10 4 users need to send 1KB about 10000bit information if the 1KB data as a packet sent at least theoretically there will be a data error in the receiver then the 1KB data can never be received correctly If it is divided into 10 packages each package 100B then send 10 packets the packets according to a probability of only 1 error the error in the form of a packet retransmission by ARQ 1 although it took more than 1 packet and the efficiency decreased by about 10 but it can guarantee all the information is correctly received JZ875 set parameters the market is no longer used wireless modules used in the traditional way to change the parameters of the jumper causing long term use because it brings bad options less dynamic change is not easy a lot of inconvenience JZ875 using the serial port setting parameters easy and quick easy set refers to the chip embedded in the user program and operating software in the background Meanwhile module 1200 2400 4800 9600 19200 38400bps six kinds of rate and frequency of 16 provide UART TTL RS232 RS485 three kinds of interfaces Choice for users In the work on JZ875 There are two ways of working first for the conventional model which Module is powered On is in receive mode you also can be sending data The second is sleep mode that is through the power module in a dormant state it must be user controlle
8. eceiver E nd user devices receiving the data sent by the module and then transferred to the data center must have sent more than 1ms delay Module A Module B TAD GR From Module A transmit to Module B receive When the user is doing data transfer the data must take into account the delay module in order to ensure the reliability of wireless transmission the company added the module FEC forward error and other encoding rules Then from A to B module module in the middle of the transmission of data with different baud rates for the delay in the following table Air rate Timets1 Air Rate Timets1 bps ms bps ms 38400 ll 4800 43 19200 15 2400 83 9600 25 1200 140 SHENZHEN J IZHUO TECHNOLOGY CO LTD TEL 0755 83304518 83308451 Tech 0755 61319411 61319410 WEB http www jizhuo com amp Ji tw Technol ogy J Z875 M icro power wireless data module Description of the normal work light Wireless module has a two color indicator light power the red light will flash twice emission data red green light when receiving data J Z875 default parameter ene x Serial port speed 9600BPS Serial port verification Null x do Tass 12e 460 1250MHEze e Airborne speed 9600BPS x Technical specification of J Z875 x Technical specification x x F requency x 433MHz x x Transmit Power x 1 2W 30 33 dB x R eceiver sensitivity 123dBm x
9. odule Hardware wake up mode the radio s sleep current of less than 1mA Wake up work in the use of hardware in the user interface input terminals 1 foot low the radio will enter sleep mode MCU about 1ms of sleep When to make the radio into the normal working hours should be in the user interface the input terminal 1 foot high the radio will enter the normal mode MCU is working on several ms to enter into the state but in order to send data to the stability the user should be more than 60ms delay for data transmission Note If the user interface in use 1 foot terminal is not connected the radios work in normal working condition Details as followings M odule in the working state to sleep state it is necessary to SLE pin from low to high if the module is idle no transmit receive data MCU to sleep within about lms If you are in the collection and development data the data will be processed the frame side to sleep Module in sleep state to work state it is necessary to SLE pin from high to low MCU is working on several ms to enter into the state but in order to send data to the stability of the user side should be more than 60ms latency available for data transmission VCC IDLESSE DLESSE SHENZHEN J IZHUO TECHNOLOGY CO LTD TEL 0755 83304518 83308451 Tech 0755 61319411 61319410 WEB http www jizhuo com a Sp Op J i Zhuo 7 Technol ogy J Z875 M icro power wireless data module Transform on transceiver and r
10. p Bits Ch Close i Cance RSSI and Power pes HEX nt Read Power Write Radio ID and JZ875 885 230C power Input s ID Read H Write 01 02 O JZ875 885 230C po write OutPul D ShenZhen Jizhuo technology CO COM1 9600 HONE 36 1 A J Z875 module connected to the PC and plug in the power select the serial port used B the radio detection when the check to the station the software will prompt detection success you can read or change a single parameter C change parameters when you select a parameter you want to set after set up to read again to see the parameters of the module is not what you want Note Two or more modules to communicate then the frequency of the station modules and air rate must be consistent M odule to communicate with user equipment the module s serial port parameters and user settings must be consistent SHENZHEN J IZHUO TECHNOLOGY CO LTD TEL 0755 83304518 83308451 Tech 0755 61319411 61319410 WEB http www jizhuo com 6 p i tw Technol ogy J Z875 M icro power wireless data module Communicated M odule J Z875 wireless module with all the J Z87 series of models to communicate with each other Communication as long as you pay attention to the following A select all the modules to the same channel B you have the same communication module of the air rate C the communication module power supply interface connection is connected Sleep mode m
Download Pdf Manuals
Related Search