Shenzhen KYL Communication Equipment Co., Ltd KYL-200L Low Power Wireless Transceiver Data Module Shenzhen KYL Communication Equipment Co., Ltd Address: C3705-3707, Huangdu Square, South of Exhibition Center, Yitian Road, Futian District, Shenzhen, Guangdong, China 518048 Tel: 86-755-82943662 Fax: 86-755-83408785 Skype：KYL-Sunny Yahoo messenger: [email protected] MSN: [email protected] Email: [email protected] Website: http://www.rf-data.com Fax: +86-755-83408785 [email protected] www.rf-data.com 1 Shenzhen KYL Communication Equipment Co., Ltd Before using our products, please read the user manual carefully. Any questions, Welcome to contact us. I．About KYL-200L KYL-200L is a kind of low power wireless transceiver data module. With small size, low power consumption as well as good stability and reliability, it is widely used as wireless data transmitter in long-ranges such as AMR and wireless telemetry system. Its channel spacing is as low as 25 KHz and the frequency stability is 2.5ppm II．Data Sheet of KYL-200L PERFORMANCE Power Output: 500mW(Default), (500mW~1W optional) RF Line-of-sight Range: 3Km@1200bps; 2Km@9600bps RF Effective Rate: 1200/2400/4800/9600/19200bps Space Channel: 1MHz(Default), (12.5/25KHz/other Customization ) Bandwidth: 25KHz Receiver Sensitivity: -123dBm@1200bps (1% BER) NETWORKING Networking Topology: Point-to-point, point-to-multipoint COMPATIBILITY HAC-LAN POWER Supply Voltage: 5V DC (Default); (7.5~9V optional) Transmit Current: <400mA Receive Current: <28mA Sleep current: <20uA GENERAL Communication Mode: Half-duplex Frequency Band: 400-470MHz,868MHz, 915MHz Channel: 8(default),16/32/64(optional) Interface: TTL/UART, Non-Standard RS232/RS485 PHYSICAL PROPERTIES Size: 53mm×38mm×10mm Weight: 22g Antenna Base: 50Ω, Operating Temperature: Industrial:-40℃~+80℃(TCXO) Frequency Stability: ±2.5ppm Industrial SMA CERTIFICATIONS FCC/RoHS/CE Fax: +86-755-83408785 [email protected] www.rf-data.com 2 Shenzhen KYL Communication Equipment Co., Ltd III．Features of KYL-200L 1. Low power transmission: 500mW (default), 600mW~1W (optional). 2. Carrier frequency: 433MHz (default), 400-470MHz, 868MHz, 915MHz (optional) 3. High anti- interference and Low BER (Bit Error Rate) Based on GFSK modulation, high-efficiency forward error correction channel encoding technology is used to ensure the data’s resistance against both transient interference and random interference. The actual BER can be achieved to 10-5~ 10-6 when channel BER is 10-2. 4. Long Transmission Distance Within the visible range, when the height of antenna is higher than 2m and the BER is 10-3, the reliable transmission distance is 3000m @1200bps and 2000m@9600bps respectively. 5. Transparent data transmission Transparent data interface used in transceivers is to satisfy many standard and nonstandard user protocols. Any false data generated in air can be filtrated automatically (What has been received is exactly what has been transmitted). 6. Multi-channels KYL-200L provides 8 channels, expandable for 16, 32 channels according to requirements of users. 7. 2 ports with three connection methods KYL-200L transceivers provide 2 ports with three connections: a UART interface of TTL level, a non-standard RS-232 port and a non-standard RS-485 port. 8. Big data buffer area With optional interface baud rates: 1200/4800/9600/19200bps and 8N1/8E1/8O1 data format (decide by user), the transceiver can transmit unlimited data frames with flexible user program. Note: the RF data rate is only settled down before delivery; please specify our sales your requirements when placing your orders. 9. Intelligent data control system and no other extra programs required Even for half duplex communication, no other excessive programs are required. All RF system data transmission/reception and other On-the-Fly conversion and control are performed by KYL-200L transceivers automatically. 10. Lower power consumption & nice sleep function With +5V power, the receiving current is less than 25mA, the transmitting current is less than 300mA, and the sleeping current is less than 20uA. 11. High reliability, small size and excellent performance By using monolithic radio-frequency integrated circuit and single-chip MCU, the transceivers have less peripheral circuits, high reliability, and low failure rate. 12. Various options for configurable antennas. Fax: +86-755-83408785 [email protected] www.rf-data.com 3 Shenzhen KYL Communication Equipment Co., Ltd III: Application of KYL-200L: KYL-200L is suitable for: * Automatic Meter Reading (AMR); * Wireless alarm and security systems; * Building automation, security systems, wireless monitor; * Wireless data transmission, automatic data collection system; * Wireless POS, PDA wireless smart terminal; * RF transmitter, Wireless electronic display screen and Queuing machine; * Wireless telemetry; remote control and access control system; * Wireless modem automobile inspection and four-wheel orientation; * Wireless sensor, Industrial wireless remote control; * Data communication in the aspects of railway, oil field, dock and army. * LED display in thruway and public place; * Point to multi-point wireless network. IV: How to use the KYL-200L KYL-200L provide RS-232, RS-485 and UART/TTL level interface ports which can be direct connected with PC, RS485 devices, monolithic processors and other UART components. Please find the schematic diagram below: 1. Power supply The factory setting is +5V (needing 7.5V-12V, please notify us when placing the order). 2. Connection Definition with terminal KYL-200L transceivers supply one 9-pin connector (JP1), their definitions and connection methods with terminals are shown in Table 1. Fax: +86-755-83408785 [email protected] www.rf-data.com 4 Shenzhen KYL Communication Equipment Co., Ltd Table 1: JP1 Pin Definitions and connection methods Pin No. Signal Name Function Level Connection with terminal Ground 1 GND Grounding of power supply 2 Vcc Power supply DC 5V 3 RxD/TTL Serial data input to the transceiver TTL TxD 4 TxD/TTL the TTL RxD 5 SGND Transmitted transceiver Signal 6 A (TXD) A of RS-485(TxD of RS-232) A(RxD) 7 B (RXD) B of RS-485(RxD of RS-232) B(TxD) 8 SLEEP Sleep control (input) TTL 9 RESET Reset signal(input) TTL data out of Sleep signal Remarks High level sleep Negative pulse reset 3. The connection schematic diagram between computer and our RF module 4. Setting of channel, interface, and data format Before using KYL-200L, the user needs to make simple configuration to determine the channel, interface mode and data format based on his own needs. You can view or change the module's interface baud rate, channel and address code, parameter setting or reading as per the testing software KYLCOM in the PC (in products box). i. Channel configuration: Fax: +86-755-83408785 [email protected] www.rf-data.com 5 Shenzhen KYL Communication Equipment Co., Ltd Channel No. Frequency Channel No. Frequency 1 429.0325MHZ 5 433.0325MHZ 2 430.0325MHZ 6 434.0325MHZ 3 431.0325MHZ 7 435.0325MHZ 4 432.0325MHZ 8 436.0325MHZ Note: the frequency points corresponding to each channel can be adjusted based on the user’s needs. ⅱYou can read and change some data sheet by our software. If needed, please find the instruction on our website. 5. Installation dimension: 6. The Function-indicator light a. The LED indicator light will turn red for 0.5S once switch on. b. The LED indicator light will turn green continually while receiving data from air. c. The LED indicator light will turn red continually when transmitting data into air after receiving from COM. d. If the module keeps sleep function, LED indicator light is always dark. 7. Supported protocol and Transmit capability KYL-200L standard transceivers offer transparent protocol to support various applications and protocols of users. If you need to decrease his cost or ease the workload of terminal CPU, we can add other specific functions based on the transparent protocol, such as addressing, data acquisition, command interpretation, etc. Fax: +86-755-83408785 [email protected] www.rf-data.com 6 Shenzhen KYL Communication Equipment Co., Ltd 8. Sleep function In order to reduce consumption, KYL-200L transceivers support sleep function. In sleep mode, the current consumption is less than 20uA. a. How to use sleep function: The Pin8 ‘SLP’ in JP1 is the signal of sleep control. At high power level, transceiver stays in working mode. At low power level (<0.5V), transceiver stays in sleep mode. The SLP signal can convert transceiver from working to sleep mode in 1ms after falling edge. If the Sleep signal arrives when the transceiver is transmitting data, the module will move to sleep mode after finishing transmission. From sleep moves to working, it takes the transceiver 1ms after rising edge. To disable the opened sleep function of KYL-200L, the SLP (SLEEP) pin should be definitely connected with 0 or ground. b. Attentions about using sleep function: When the sleep function enabled, or any supply glitches, such as switch dithering, fire striking or quick switching on and off, may cause the transceiver switch to wrong sleep mode. After switching on, users can avoid this error by making a compulsive restoration once after the CPU delays 100ms. Sleep Timing Diagram: 9. Attentions about data transmission a. The delay time (tc) of conversion between transmitting and receiving is less than 1ms. Timing diagram: Fax: +86-755-83408785 [email protected] www.rf-data.com 7 Shenzhen KYL Communication Equipment Co., Ltd b. The delay time of transceivers between the first bit sent by TxD to the first bit received by RxD. As data processing will be made on user’s data by KYL-200L transceiver using FEC (Forward Error Correction) or other correction algorithm, when RxD of a KYL-200L transceiver ‘A’ receives the data, then transmits it, the other one transceiver ‘B’ will have a delay (ts) to receive and transmit by TxD. Different RF data rate causes different delay time. Please see the specific delay time below: RF Date Rate (bps) 1200 Delay Ts(mS) 90 RF Date Rate (bps) 9600 Delay Ts(mS) 16 2400 48 19200 10 4800 30 Timing diagram: c. Error dealing procedure: To enhance the reliability and stability of user’s systems, a verify bit or a Cyclic Redundancy Check (CRC) mode is highly recommended to prevent wrong Fax: +86-755-83408785 [email protected] www.rf-data.com 8 Shenzhen KYL Communication Equipment Co., Ltd information while using KYL-200L modules. d. Large-number data transmission In theory, when the interface data rate is faster than the RF data rate, KYL-200L transceivers can sent unlimited-long data package, but long packages more than 120B are not recommended. The length of each package should be between 60~100B. We also recommend our users to use Automatic Error Request Equipment (ARQ) to prevent wrong information. Reasons: What if the actual transmission BER (Bit Error Rate) is 10-4, 1 packet with 1KB data which is about 10-thousand bits, is sent, theoretically, at least 1 bit will be received wrongly, then the 1KB information will never be received correctly. But if we package the data into 10 packets with 100B for each, when all 10 packets are sent, there will be only 1 packet wrong according to this probability. After that, resend this wrong packet using ARQ mode. So by resending one more packet and the efficiency rate is reduced 10%, all data will be absolutely received correctly. 10. Antenna configuration: Many appropriative antennas for low power RF modules are selected to meet different users’ antenna configurations. Please ask our Sales for more information about the antenna’s dimension and performance. a. Helical SMA antennas KYL-ANT-433-10-SMA: 100mm helical SMA antennas with high gain and low cost, reach a long distance. KYL-ANT-433-3-SMA: 28mm SMA helical antenna with magnetic core, small size, beautiful appearance (like the mobile phone antenna) KYL-ANT-433-10-ZSMA: 100mm SMA helical antenna with folding joint, easy for adjusting the direction and fixing. Fax: +86-755-83408785 [email protected] www.rf-data.com 9 Shenzhen KYL Communication Equipment Co., Ltd b. Magnetic vehicle antenna KYL-ANT-O433S-300H1.5-SMA: include magnetic antenna base, suitable for equipment with metal shell, easy for fixing, effective to enhance the transmission distance. For more kinds of antennas ， please go to our website: http://www.rf-data.com/Products_list_en.asp?classid=163 If you have special requirements on antennas, we can design and produce for you individually. V. Network Application of KYL-200L The communication channel of KYL-200L is half duplex, which is most suitable for the communication mode of point to multi-point. Under this mode, one master station must be set, and all of the rest are slave stations. A unique address is given to each station. The coordination of communication is controlled by master station that uses data frames containing address code to transmit data or command. Slave station will receive all of the data and command and compare the received address code with local address code. If they are different, the data will be deserted without any response. If those address codes are the same, it means the data is sent to the local. Slave station will make different responses according to the transmitted data or command and send back the data of response. All these jobs must be performed by upper protocol, and it is assured that there is only one transmitter-receiver in the state of transmission in the communication network at any instant moment so as to avoid the cross-interference. KYL-200L can also be used for point-to-point communication with easier operation. For the programming of serial port, all you have to do is to remember that its communication mode is semi duplex while always observing the time sequence of come-and-go for receiving and transmitting. Fax: +86-755-83408785 [email protected] www.rf-data.com 10 Shenzhen KYL Communication Equipment Co., Ltd VII. Description of type KYL-200L-96 Manufacture Type Fax: +86-755-83408785 Baud Rate 12:1200bps 24:2400bps 48:4800bps 96:9600bps 192:19200bps [email protected] www.rf-data.com 11