shenzhen shenzhen shenzhen shenzhen kyl kyl kyl kyl communication communication communication communication equipment equipment equipment equipment co co co co ., ., ., ., ltd ltd ltd ltd tel: tel: tel: tel: 86-755-82943662 86-755-82943662 86-755-82943662 86-755-82943662 sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com KYL-220 KYL-220 KYL-220 KYL-220 high high high high speed speed speed speed rate rate rate rate rf rf rf rf transceiver transceiver transceiver transceiver module module module module shenzhen shenzhen shenzhen shenzhen kyl kyl kyl kyl communication communication communication communication equipment equipment equipment equipment co., co., co., co., ltd ltd ltd ltd add: add: add: add: 3705-3707, building c, huangdu square (south of shenzhen exhibition center) , yitian road, futian district, shenzhen, guangdong, china 518048 tel: tel: tel: tel: 86-755-82943662 fax: fax: fax: fax: 86-755-83408785 skype skype skype skype kyl-sunny yahoo: yahoo: yahoo: yahoo: kyl_sunny@yahoo.com msn: msn: msn: msn: kyl-sunny@hotmail.com email: email: email: email: sales02@rf-data.com web: web: web: web: www.rf-data.com
shenzhen shenzhen shenzhen shenzhen kyl kyl kyl kyl communication communication communication communication equipment equipment equipment equipment co co co co ., ., ., ., ltd ltd ltd ltd tel: tel: tel: tel: 86-755-82943662 86-755-82943662 86-755-82943662 86-755-82943662 sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com i: i: i: i: about about about about KYL-220 KYL-220 KYL-220 KYL-220 KYL-220 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 transceiver in long-ranges. ii: ii: ii: ii: technical technical technical technical specification specification specification specification performance performance performance performance power output: 10mw rf line-of-sight range: 100m rf effective rate: 1200/2400/4800/9600/19200/38400/100kbps space channel: 1mhz(default), (12.5/25khz/other customization ) bandwidth: <25khz receiver sensitivity: - 118dbm@1200bps (1% ber) networking networking networking networking networking topology: point-to-point, point-to-multipoint compatibility compatibility compatibility compatibility kyl-210 power power power power supply voltage: 5v dc transmit current: <25ma receive current: <20ma sleep current: <20ua general general general general communication mode: half-duplex frequency band: 400-470mhz, 868mhz, 915mhz channel: 8(default),16/32/64(optional) interface: usb physical physical physical physical properties properties properties properties size: 40mm 22mm 6mm (excluding antenna base and data pin) weight: 20g antenna base: 50 , sma operating temperature: commercial:-35 ~+75 (tcxo) frequency stability: 2.5ppm
shenzhen shenzhen shenzhen shenzhen kyl kyl kyl kyl communication communication communication communication equipment equipment equipment equipment co co co co ., ., ., ., ltd ltd ltd ltd tel: tel: tel: tel: 86-755-82943662 86-755-82943662 86-755-82943662 86-755-82943662 sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com iii: iii: iii: iii: application application application application of of of of KYL-220: KYL-220: KYL-220: KYL-220: * automatic meter reading (amr); * wireless alarm and security systems; * building automation, security systems, wireless monitor , remote control and access control system; * wireless data transmission, automatic data collection system; * radio modem can be used for sports training & competition; * wireless dishes ordering; * wireless pos, pda wireless smart terminal; * rf module can be used for electronic bus station and intelligent traffics; * rf transmitter , wireless electronic display screen and queuing machine; * wireless telemetry; charging for parking, parking lot; * wireless modem automobile inspection and four-wheel orientation; * data communication in the aspects of railway, oil field, dock and army. * led display in thruway and public place; iv: iv: iv: iv: how how how how to to to to use use use use the the the the KYL-220 KYL-220 KYL-220 KYL-220 KYL-220 provides usb interface which can be directly connected with pc. please find the schematic diagram below: 1. 1. 1. 1. power power power power supply supply supply supply the factory setting is +5v. using better ripple factor, KYL-220 transceivers can also share power supply with other equipment. if possible, a voltage-stabilizing chip with 5v voltage is much recommended than switch power supply. but if only switch power supply is available, the jam caused by switch pulse should be avoided. in addition, the reliable grounding must be used if there is other device in the system equipment. in case of failing to connect with the ground, it can form its own grounding but must be absolutely separated from the municipal electric supply. 2. 2. 2. 2. setting setting setting setting of of of of channel, channel, channel, channel, interface, interface, interface, interface, and and and and data data data data format format format format before using KYL-220, 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 .
shenzhen shenzhen shenzhen shenzhen kyl kyl kyl kyl communication communication communication communication equipment equipment equipment equipment co co co co ., ., ., ., ltd ltd ltd ltd tel: tel: tel: tel: 86-755-82943662 86-755-82943662 86-755-82943662 86-755-82943662 sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com 3. 3. 3. 3. supported supported supported supported protocol protocol protocol protocol and and and and transmit transmit transmit transmit capability capability capability capability KYL-220 standard transceiver offe rs transparent protocol to support various applications and protocols. 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. 4 4 4 4 the the the the attentions attentions attentions attentions of of of of data data data data transmission transmission transmission transmission a. a. a. a. the the the the delay delay delay delay time time time time (tc) (tc) (tc) (tc) of of of of conversion conversion conversion conversion between between between between transmitting transmitting transmitting transmitting and and and and receiving receiving receiving receiving is is is is less less less less than than than than 1ms. 1ms. 1ms. 1ms. timing diagram: b. b. b. b. the the the the delay delay delay delay time time time time of of of of transceivers transceivers transceivers transceivers between between between between the the the the first first first first bit bit bit bit sent sent sent sent by by by by txd txd txd txd to to to to the the the the first first first first bit bit bit bit received received received received by by by by rxd. rxd. rxd. rxd. delay time: rf date rate (bps) delay ts(ms) rf date rate (bps) delay ts(ms) 1200 90 9600 16 2400 48 19200 10 4800 30 timing timing timing timing diagram: diagram: diagram: diagram:
shenzhen shenzhen shenzhen shenzhen kyl kyl kyl kyl communication communication communication communication equipment equipment equipment equipment co co co co ., ., ., ., ltd ltd ltd ltd tel: tel: tel: tel: 86-755-82943662 86-755-82943662 86-755-82943662 86-755-82943662 sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com sales02@rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com c. c. c. c. error error error error dealing dealing dealing dealing procedure: procedure: procedure: 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 information while using KYL-220 modules. d. d. d. d. large-number large-number large-number large-number data data data data transmission transmission transmission transmission in theory, when the interface data rate is faster than the rf data rate, KYL-220 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: reasons: reasons: reasons: what if the actual transmission ber (bit error rate) is 10 -4 -4 -4 -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. 5. 5. 5. 5. antenna antenna antenna antenna configuration: configuration: configuration: configuration: many appropriative antennas for low power rf modules are selected to meet different user antenna configurations. please ask our sales office for further information about the antenna s dimension and performance. the standard antenna for KYL-220 is the 2nd one---28mm antenna.
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