., Ltd Shenzhen KYL Communication Equipment Co Co., KYL-500L Small Size RF Transceiver face back I: About KYL-500L KYL-500L, the micro power wireless transceiver data module is designed for wireless POS terminal. With small size, low power consumption as well as good stability and reliability, it is also widely used for other embedded systems. II. Technical parameter PERFORMANCE Power Output: 400mW RF Line-of-sight Range: 2000m@1200bps; 1500m@9600bps www.rf-data.com [email protected] [email protected] ., Ltd Shenzhen KYL Communication Equipment Co Co., RF Effective Rate: 1200/2400/4800/9600/19200bps Space Channel: 1MHz(Default),(12.5/25KHz Customization ) Bandwidth: <25KHz Receiver Sensitivity: -123dBm@1200bps (1% BER) NETWORKING Networking Topology: Point-to-point, point-to-multipoint COMPATIBILITY KYL-200 and KYL-300 and KYL-500 series POWER Supply Voltage: 5V DC (3.3V-3.6V optional) Transmit Current: <350mA Receive Current: <25mA Sleep current: <1uA GENERAL Communication Mode: Half-duplex Frequency Band: 400-470MHz Channel: 8(default),16/32/64(optional) Interface: TTL/UART PHYSICAL PROPERTIES 49mm×23mm×10mm Size: (excluding antenna base and data pin) Weight: 20g Antenna Base: 50Ω, Operating Temperature: Industrial:-40℃~+80℃(TCXO) Frequency Stability: ±2.5ppm Industrial SMA III. Applications of KYL-500L Wireless Dish-ordering system; Automatic Meter Reading (AMR) Wireless POS terminal, Wireless PDA Wireless alarm and security systems Wireless data transmission, automatic data collection system; www.rf-data.com [email protected] [email protected] ., Ltd Shenzhen KYL Communication Equipment Co Co., IV. How to Use KYL-500L KYL-500L is a TTL interface data transceiver. Here is its diagram. 1. Power supply The factory setting is DC 5V. 2. Pin definition Pin Signal name Function level 1 GND Ground of power supply 2 VCC Remarks No. Power supply DC 5V 3 4 GND 5 TEST Factory testing 6 - For future development TTL 7 SLP Sleep control(TTL level) TTL 8 RXD Data receiving TTL 9 TXD Data transmitting TTL Low level valid 3. Setting of channel, interface, and data format You can use KYLCOM.exe software to read or set the parameter, such as frequency, channel on your computer. 4. Default frequency for each channel Ch. No Frequency CH. No.. Frequency Ch. No. Frequency Ch. No. Frequency 1 429.0325MHZ 2 430.0325MHZ 3 431.0325MHZ 4 432.0325MHZ 5 433.0325MHZ 6 434.0325MHZ 7 435.0325MHZ 8 436.0325MHZ www.rf-data.com [email protected] [email protected] ., Ltd Shenzhen KYL Communication Equipment Co Co., 5. Installation dimension (mm): 6. The Function-indicator light a. The LED indicator turns red for 0.5S once power on. b. The LED indicator turns green continually while receiving data. c. The LED indicator turns red continuously when transmitting data. d. If the module enters to sleep mode, LED indicator light is always dark. 7. Sleep function instruction: In order to save power, KYL-500L transceivers support Sleep function. In sleep mode, the current consumption is less than 1uA. a. How to use the Sleep function: The Pin7 ‘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 enter sleep mode after finishing transmission. From sleep mode to working, it takes the transceiver 1ms after rising edge. To disable the opened sleep function of KYL-500L, the SLP (SLEEP) pin should be definitely connected with 0 or ground. b. Attentions about the use of sleep function: When the sleep function enabled, any supply glitches, such as switch dithering, fire striking or quick switching on and off may cause the transceiver moving to wrong sleep mode. Users can avoid this error by making a compulsive restoration once the CPU delays 100ms after switching on Sleep Timing Diagram: www.rf-data.com [email protected] [email protected] ., Ltd Shenzhen KYL Communication Equipment Co Co., 8. Attentions about data transmission a. The delay time of conversion between transmitting and receiving is less than 1ms. Timing diagram: b. The delay time of transceivers between the first bit sent by TxD to the first bit received by RxD is as follows follows.. 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: www.rf-data.com [email protected] [email protected] ., Ltd Shenzhen KYL Communication Equipment Co Co., 9. Antenna configuration: We usually use A2 antenna for this module, if you have other requirements, please specify before placing the order! Thanks! Shenzhen KYL Communication Equipment Co., Ltd 4th Floor, Building 3, No. 335#, West Zhuguang Road, Xili, Nanshan District, Shenzhen, Chinas Fax: 86-755-83408785 Tel: 86-755-86643962 www.rf-data.com [email protected] [email protected]