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KYL-500L-24

型号:

KYL-500L-24

描述:

无线订单碟系统KYL- 500L特殊的射频模块[ KYL-500L Special RF module for Wireless Order-dish System ]

品牌:

KYL[ SHENZHEN KYL COMMUNICATION EQUIPMENT CO,LTD. ]

页数:

14 页

PDF大小:

467 K

Shenzhen KYL Communication Equipment Co., Ltd  
KYL-500L Special RF module for Wireless  
Order-dish System  
Shenzhen KYL Communication Equipment Co., Ltd  
Address: Unit 5-7, Building3, Huangdu Square, South of Exhibition Center,Yitian  
Road, Futian District, Shenzhen Guangdong China  
Tel: +86-0755-83410815  
Fax: +86-0755-83408785  
Skypelxmlosia  
Yahoo messenger: losia2012@yahoo.com  
MSN: kylcom01.com@hotmail.com  
E_mail: sales01@rf-data.com/kyl03losia@gmail.com  
Website: http://www.rf-data.com  
1
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Shenzhen KYL Communication Equipment Co., Ltd  
Catalogue  
I. Features of KYL-300H ............................................................. 3  
II. Applications of KYL-300H.......................................................4  
III. How to use KYL-300H............................................................ 4  
IV. Networking Application of KYL-300H................................ 13  
V. Technical specification of KYL-300H.................................... 13  
VI. Description of type.................................................................. 14  
2
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I: About KYL-500L  
KYL-500L, the micro power wireless transceiver data module is designed for  
order-dish system, with the small size, weight and low power consumption and good  
stability and reliability. Also it can used for the embedded system which need small  
size and low power consumption and long range. Narrowband low power UHF  
wireless data transmitters and receivers with channel spacing as low as 25 KHz.  
II. Features of KYL-500L  
1. Low power transmission with 400mW.  
2. With 433MHz as factory default carrier frequency, but 400-470MHz is available if  
needed.  
3. High anti- interference and Low BER (Bit error Rate)  
Based on the Gaussian Frequency Shift Keying (GFSK) modulation, the  
high-efficiency forward error correction channel encoding technology is used to  
enhance data’s resistance to both transient interference and random interference and  
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 visible range, when the height of antenna is higher than 2m and The Bit  
Error Rate (BER) is 10-3, the reliable transmission distances respectively is 2km  
@1200bps, and is 1.5km@9600bps.  
5. Transparent data transmission  
Transparent data interface used in transceivers is for meeting many standard or  
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-500L transceivers offer 8 channels, if needed, 16 or 32 channels are available  
to satisfy various configuration of communication under user’s demand at the same  
time.  
7. Big data buffer area  
With optional interface baud rate: 1200/4800/9600/19200bps and 8N1/8E1/8O1  
data format (set by user), the transceiver can transmit unlimited data frames with  
flexible user program.  
8. Intelligent data control and no any extra programs required  
Even for half duplex communication, no any excessive programs required. All RF  
system data transmission/reception and other On-the-Fly conversion and control are  
performed by KYL-500L transceivers automatically.  
8. Lower power consumption & Sleep function  
With +3.3V to +3.6V power, the receiving current is less than 25mA, the  
transmitting current is less than 200mA, and the sleeping current is less than 1uA.  
9. High reliability, small and light  
High sensitivity, suitable size for the order-dish system,  
long distance, strong penetrability, suitable for handheld terminal, RSSI value.  
3
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Shenzhen KYL Communication Equipment Co., Ltd  
III. Applications of KYL-500L  
KYL-500L Ultra low power RF module is suitable for:  
* Wireless Order-dish system;  
* Wireless POS, PDA wirelss smart terminal;  
* Lower power consumption System;  
* AMR Automatic Meter Reading  
* Wireless alarm and security systems  
* Building automation, security, wireless monitoring and control of room equipment,  
Access Control System;  
* Wireless data transmission, automatic data collection system;  
* Radio modem can be used for Sports training & competition;  
* Wireless dishes ordering;  
* RF modem can be used for Electronic bus station and intelligent traffic;  
* RF transmitter Wireless electronic display screen and queuing machine;  
* Wireless telemetry Charging for parking, parking lot;  
* Wireless modem Automobile inspection and four-wheel orientation;  
* Wireless sensor Industrial wireless remote control and air conditioning remote  
controller;  
* LED display in thruway and public places  
* Point to multi-point wireless network, wireless on-the-spot bus and automatic data  
collection system;  
IV. How to use KYL-500L  
KYL-500L can provides RS-232,RS-485 and TTL level interface port for direct  
connection with PC, RS485 devices, monolithic processors. The schematic diagram is  
shown below:  
1. Power supply  
The factory default setting is 3.6V. DC. By using better ripple factor, KYL-500L  
transceivers can also share power supply with other equipment. If possible, a  
voltage-stabilizing chip with 3.6V voltage is more recommended as the only power  
supply than Switch power supply. But if only switch power supply available, the  
jam by switch pulse to the transceivers should be avoided. In addition, the reliable  
grounding must be used if there is other device in the system equipment. In case of  
4
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failing to connect with the ground, it can form its own grounding but must be  
absolutely separated from the municipal electric supply.  
2. Connection Definition with terminal  
KYL-500L transceivers supply one 9-pin connector (JP1), their definitions and  
connection methods with terminals are shown in Table 1.  
Table 1: JP1 Pin Definitions and connection methods  
Pin No. Signal Name  
Function  
Level  
Connection  
with terminal  
Ground  
Remarks  
1
2
3
4
GND  
Vcc  
Grounding of power supply  
Power supply DC  
5V  
RxD/TTL  
TxD/TTL  
Serial data input to the transceiver  
TTL  
TTL  
TxD  
RxD  
Transmitted data out of the  
transceiver  
5
6
7
8
SGND  
A (TXD)  
B (RXD)  
SLEEP  
Signal  
A of RS-485(TxD of RS-232)  
B of RS-485(RxD of RS-232)  
Sleep control (input)  
A(RxD)  
B(TxD)  
TTL  
TTL  
Sleep signal  
High level  
sleep  
9
RESET  
Reset signal(input)  
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-500L, the user needs to make simple configuration based on its  
5
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own needs to determine the channel, interface mode and data format. The user can  
change or view the module's interface baud rate, channel and address code.  
Parameter setting or reading as per the testing software KYLCOM.exe in the PC  
(in products box).And the configuration is as follows:  
i. Channel configuration:  
Channel No.  
Frequency  
Channel No.  
Frequency  
1
2
3
4
429.0325MHZ  
430.0325MHZ  
431.0325MHZ  
432.0325MHZ  
5
6
7
8
433.0325MHZ  
434.0325MHZ  
435.0325MHZ  
436.0325MHZ  
Note: the frequency points corresponding to each channel can be adjusted  
based on the user’s needs.  
ii. The schematic diagram of setting the parameter as follows:  
a. Connect the PC and module with RS232 data cable.  
b. Open the “KYLCOM” PC software, select “English” as follows:  
c. Click “open port”, then will open a small window as the following picture, clients  
will write the parameters in this windows.  
6
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d. Click “read paras”.  
“Read correct” show your connection between KYL module and PC is correct.  
7
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If you want to change some technical parameter, you need do as follows.  
e. User can change the parameter such as channel and interface  
rate and Parity mode according to actual demand through the button of the left  
window. After writing the parameters in the left catalogue, click the “write para”,  
then will show “write correct”. So you have finished the process for changing  
technical parameter.  
8
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Note: The RF data rate(Air Rate) can not be set by user, it is confirmed when  
placing orders and set before delivery. So please confirm the RF data rate when  
placing the order.  
5. Installation dimension(mm):  
9
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6. The Function-indicator light  
a. The LED indicator light will glitter red for 0.5S once after switched on.  
b. The LED indicator light will glitter green continually while receiving data from  
air.  
c. The LED indicator light will glitter red continuously when transmitting data into  
air after receiving from COM.  
d. If the module enables the sleep function, LED indicator light is always dark.  
7. Supported protocol and Transmit capability  
KYL-500L standard transceivers offer transparent protocol to support various  
applications and protocols of users. If the user needs 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.  
8. Sleep function instruction:  
Due to reducing more consumption, KYL-500L transceivers support Sleep function.  
In sleep mode, the current consumption is less than 20uA.  
a. How to use the Sleep function:  
The Pin8 ‘SLP’ in JP1 is the signal of sleep control. In high power level,  
transceiver stays in working mode. In 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 use of sleep function:  
When the sleep function enabled, any supply glitches, such as switch dithering,  
fire striking or quick switching on and off, could cause the transceiver to be  
switched to the 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:  
10  
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9. The attentions of data transmission  
a. The delay time (tc) 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.  
Due to a data processing will be made on user’s data by KYL-500L transceiver  
using FEC (Forward Error Correction) or other correction algorithm, when RxD  
of a KYL-500L 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)  
Delay  
Ts(mS)  
90  
RF Date Rate  
(bps)  
Delay  
Ts(mS)  
16  
1200  
9600  
2400  
4800  
48  
30  
19200  
10  
11  
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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 resent the wrong  
information while using KYL-500L modules.  
d. Large-number data transmission  
In theory, when the interface data rate is faster than the RF data rate, KYL-500L  
transceivers can sent unlimited-long data package, but any long packages more  
than 120B are not recommended. The length of each package should be between  
60~100B. We also recommend user to resent the wrong information using  
Automatic Error Request Equipment (ARQ).  
The analyzing as below:  
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 for meeting  
different user antenna configurations. Please ask our Sales office for further  
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.  
12  
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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.  
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.  
More kinds of antenna, please browse our website:  
http://www.rf-data.com/Products_list_en.asp?classid=163  
If the user has special demands on antennas, we can design and produce for them  
specially.  
V. Networking Application of KYL-500L  
The communication channel of KYL-500L 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  
13  
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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-500L 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.  
VI. Technical specification of KYL-500L  
* Modulation mode: GFSK/FSK  
* Working frequency: 400MHz~470MHz  
* Power supply: DC 3.3-3.6V±10%)  
* RF power: ≤400 mW;  
* RF data rate: 1200/2400/4800/9600/19200bps (Set before delivery);  
* Receive current: <25mA (TTL connect);  
* Receive sensitivity: -123dBm (1200bps); -118dBm (9600bps);  
* Transmitting current: <200mA;  
* Sleep current: <1uA;  
* Interface data format: 8E1/8N1/8O1;  
* Working humidity: 10%~90% relative humidity without condensation;  
* Working temperature: -35~+75( industrial)  
* RF Line-of-sight Range: 1.5km(BER=10-5@9600bps);  
2km(BER=10-5@1200bps);  
* Size: 49mm*23mm*10mm (without antenna port).  
VII. Description of type  
KYL-500L-96  
Baud Rate  
12:1200bps  
manufacturer  
type  
24:2400bps  
48:4800bps  
96:9600bps  
192:19200bps  
14  
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