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JZ871 Mini Power Wireless Module User`s Manual

1. Website http www jizhuo net 2 JZ871 Mini Power Wireless Module User s Manual Remarks The space between each pin is 2 0 mm 2 JZ871 interface definition JZ871 can supply one 5 pin connector JP1 and its definitions as well as connection method for terminals are shown in Table 1 Table 1 Definition of connecting pins and connection method Item no PIN Description Level User terminal Remarks Connected to the terminal 1 VCC 5 0 5V 5 0 5V TTL 3V user s choose 2 GND Power DGND AGND RS232 interface GND of Power supply Ground and Data must be united 3 RXD B RS 485 Serial data receiving TXD B RS 485 end 4 TXD A RS 485 Serial data RXD A RS 485 transmitting end 5 SLE Sleep control input High level to sleep Low level end awake sleep version is aviavailability Note No sleeping is default The Pin 5 of no sleeping version is not be used pin 5 must be hung User s equipment 5v regulator n power supply transmitter receiver Remarks To avoid connecting the interface reversely and can not communicate please check and assure the voltage of 3 and 4 pin is existing by using multimeter If there is one pin that has the voltage another has not voltage which means the interface is connected reversely pls Change the connection wires between pin 3 and 4 Shenzhen Jizhuo technology CO LTD Tel 86 755 83304518 Website http www jizhuo n
2. sleeping function but hope not to apply the sleeping function the users can set by JZ871 software to set for no sleeping state or make JZ871 pin 5 to connect the ground in the mode of hardware awaken JZ871 parameters setting JZ871 have one interface of TTL RS232 RS485 You must specify the interface when you buy JZ871 main parameters COM baud rate and verify RF baud rate Channel and frequency You can change these parameters by our RF Module soft When RF baud rate is faster than COM baud rate One frame Can transmit limitless data When RF baud rate is not faster than COM baud rate One frame Can transmit 255 bytes most You can set the rate according your need The general Power supply is 5V DC Two JZ871 communication must have condition as follow 1 Their channels i e frequency is same 2 Their RF rates is same RF Module Com baud rate and verify is agree with its equipment or PC that it connects with Parameters default value Channel NO 1 Interface speed rate 9600BPS Interface verify none Speed rate in air 9600BPS Shenzhen Jizhuo technology CO LTD Tell 86 755 83304518 Website http www jizhuo net 4 JZ871 Mini Power Wireless Module User s Manual Channel and frequency list Channel Frequency 912 2000MZ 913 4288MZ 913 7360MZ 912 5072MZ 916 6940MZ 916 2332MZ 915 1580MZ 915 9260M CO NI oO Us BR WIN Re Technical specification of
3. transmit unlimited data at one time and when the RF baudrate is samaller than or was equal to the COM baudrate may transmit 255 bytes data 8 Intelligent data control and the user doesn t need to prepare excessive programs Even for semi duplex communication the user doesn t need to prepare excessive programs only receiving transmitting the data from the interface JZ871 will automatically complete the other operations Shenzhen Jizhuo technology CO LTD Tell 86 755 83304518 Website http www jizhuo net 1 JZ871 Mini Power Wireless Module User s Manual such as transmission receiving conversion in the air control etc 9 High reliability small and light Single chip radio frequency integrated circuit and single chip MCU are used for lessened peripheral circuits high reliability and low failure rate 10 Low power consumption two kinds of sleep mode Receiving current lt 30mA transmitting current lt 100mA Sleeping mode The user s should asked for it TTL a Awaken from Hardware b Awaken from Interface The user can set it according to the software 10 Watchdog monitor Watchdog monitors the inner function so it can change the traditional product structure and improve the product reliability 11 Antenna choose Users can choose the antenna according to user s different need Application of JZ871 1 Dimensional drawing Fig JZ871 interface chart Shenzhen Jizhuo technology CO LTD Tell 86 755 83304518
4. JZ871 Modulation mode GFSK Working frequency 915MHZ Transmission power 100mW Receiving sensitivity 116dBm Transmitting current lt l00mA Receiving current lt 30mA Sleeping current lt I5uA Channel speed rate 1200 2400 4800 9600 19200 38400Bit s User can Choose one Interface speed rate 1200 2400 4800 9600 19200 38400Bit s User can Choose one Change time for receiving and sending lt 10ms Interface data format 8E1 8N1 801 Power supply 5 0 5V RS232 RS485 2 7 3 6V TTL DC Working temperature 20 C 60 C Working humidity 10 90 relative humidity without condensation Dimension 44mm 27mm 8mm Attachable Communication with Model JZ871 JZ872 JZ873 JZ878 JZ875 Another style you can choose Transmission power lt 10mW Transmitting current 35mA Receiving current 30mA Shenzhen Jizhuo technology CO LTD Tell 86 755 83304518 Website http www jizhuo net 5 Model and name Optional Antenna spillikin JZ871 Mini Power Wireless Module User s Manual TO TTL interface 20 232 interface AT 485 interface Naked board no Company logo Ch Flagelliform Small acetabula antenna Trouble and solve ways NO Trouble Trouble causes and solve ways a Power Line badness touch No shine of i 1 b Power is bad Indicator light j i i c Power line meet in reverse or diode of polarity protect is bad a Radio is badness touch with PC terminal No transmi
5. JZ871 Mini Power Wireless Module User s Manual SHEN JIZHUO TECHNOLOGY CO LTD TEL 86 755 83304518 83308451 81353151 FAX 86 755 83302824 Address NO 813 212BLD Tairan Tech Park Futian District Shenzhen China Post Code 518040 Website http www jizhuo net Email sale jizhuo com JZ871 Mini Power Wireless Module User s Manual Before using the product please read the user s manual carefully Any question in technical you can contact us Tel 86 755 81353151 83304518 About JZ871 JZ871 a Mini power wireless module is used as the wireless data transmission in short distance With the characteristics of small size light weight low power consumption good stability and reliability it can provide bidirectional data transmission test and control for users It is used for Wireless meter reading such as water meter electric meter and gas meter parking meter intellective card electronic weighing apparatus meter for checking on work attendance queue wireless meter building control shipping company control alarm system intelligent equipment Automatic data collecting system Industrial remote control and remote test building automation safety and security powerhouse equipment wireless monitor entrance control system etc If necessary we can provide USB interface to make it easy to settle the question of Power Supply for Mini computer and PC users Features 1 Ultra low power transmission The hi
6. et 3 JZ871 Mini Power Wireless Module User s Manual JZ871 Power supply and sleep mode 1 Power supply JZ871 uses DC power supply with voltage of 5V It can also share power supply with other equipment however the high quality power supply with desirable ripple factor should be selected In addition the reliable grounding must be used if there is other device in the system equipment In case of failure to connect with the earth it can form its own grounding but it must be absolutely separated from the municipal electric supply 2 Sleeping function JZ871 had sleeping and no sleeping version The current ofJZ871 in the sleeping state is 1Ua Users must tell which version will be chosen before place the order in advance No sleeping is default For sleeping version users can open and close the sleeping function by themselves JZ871 with the sleeping function has two awakening way one is hardware awakening way another is interface awakening way air awakening will be reserved Hardware awakening is achieved by the Pin 5 input to the high level and input low level to awake Awaken from Interface is achieved by users send designate protocol data by JZ871 interface to open or awake JZ871 with the function of sleeping is default in close state before leaving factory so users must set by JZ871 software to set the awakening mode to hardware awakening or interface awakening Users can also tell us to set in advance If users use JZ871 with the
7. ghest transmission power is 100mW high receiving sensitivity 116dbm Size 44mm 27mm 8mm 2 ISM frequency band not requiring on application of frequency point Carrier frequency of 915MH z also capable of 433 868MHz 3 High anti interference and low BER Bit error Rate Based on the GFSK modulation mode it adopts the efficient communication protocol The actual bit error rate of 10 5 10 6 can be achieved when channel bit error rate is 10 2 4 Long transmission distance Within the range of visibility the reliable transmission distance if BER 10 3 1200bps gt 800m gt 1200m O BER 10 3 800bps when the antenna is higher than 3M 5 Transparent data transmission Transparent data interface is offered which can be fit for nonstandard user protocol Any false data generated in the air can be filtrated automatically What has been received is exactly what has been transmitted The change time for receiving and sending lt 10ms 6 Multi channel and speed The JZ871 provides 8 channels to meet the multiple communication combination mode of the users The JZ861 Module can provide many kinds of correspondence baudrate such as 1200bps 2400bps 4800bps 9600bps 19200bps and 38400bps The wireless transmission speed and the connection baudrate are proportional to satisfies the customer equipment of different baudrate 7 High speed wireless communication and Large data buffer When the RF baudrate is bigger than the COM baudrate allowing to
8. t or oo 2 RT Radio with TTL RS232 RS485 not match terminal No receive c RX frequency and TX frequency is not same a antenna not match or touch bad Bu error rate 3 i b RF baud rate is not right High mete c Power supply ripple is too great 4 Indicator light all Electromagnetism disturb in circumstance twinkling b Same frequency disturb in the circumstance Shenzhen Jizhuo technology CO LTD Tel 86 755 83304518 Website http www jizhuo net 6

JZ871 Mini Power Wireless Module User`s Manual

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