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KYL-500L_1

型号：

KYL-500L_1

描述：

无线POS终端专项射频模块[ Special RF module for Wireless POS Terminal ]

品牌：

KYL[ SHENZHEN KYL COMMUNICATION EQUIPMENT CO,LTD. ]

页数：

10 页

PDF大小：

140 K

下载PDF手册
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
KYL-500L Special RF module for Wireless POS  
Terminal  
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: KYL_Sunny@yahoo.com  
MSN: KYL-Sunny@hotmail.com  
Email: sales02@rf-data.com  
Website: http://www.rf-data.com  
1
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
Before using our products, please read the user manual carefully.  
Any questions, please contact us at the above mentioned ways.  
I: About KYL-500L  
KYL-500L, the micro power wireless transceiver data module, is designed for  
order-dish system. With small size, low power consumption as well as good  
stability and reliability, it is also widely used for other embedded systems like  
AMR.  
II. Features of KYL-500L  
1. Low power transmission: 400mW  
2. Carrier frequency: 433MHz (default), 400-470MHz (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 enhance the data’s resistance to 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 10-5, the reliable transmission distance is 2km @1200bps, and is  
1.5km@9600bps respectively.  
5. Transparent data transmission  
Transparent data interface used in transceivers is to meet 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  
We provide 8 channels, expandable for 16, 32 channels according to  
requirements of customers.  
7. 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 inform our  
sales when placing your orders.  
8. 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-500L transceivers automatically.  
9. Lower power consumption & nice sleep function  
With +3.3V to 3.6 power, the receiving current is less than 25mA, the  
transmitting current is less than 200mA, and the sleeping current is less than  
2
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
1uA.  
10. High reliability, small size and excellent performance  
High sensitivity, small size is suitable for the order-dish system. With Long  
transmission distance, strong penetrability, it is preferable for handheld  
terminal.  
III. Applications of KYL-500L  
* Automatic Meter Reading (AMR)  
* Wireless Dish-ordering system;  
* Wireless POS, PDA, wireless smart terminals;  
* Lower power consumption System;  
* Wireless alarm and security systems  
* Building automation, security, wireless monitor and control of room  
equipment, Access Control System;  
* Wireless data transmission, automatic data collection system;  
* Radio modem can be used for Sports training & competition;  
* Electronic bus station and intelligent traffic;  
* Wireless electronic display screen and queuing machine;  
* Wireless telemetry, charging for parking, parking lot;  
* Automobile inspection and four-wheel orientation;  
* Wireless sensor, Industrial wireless remote control and air condition remote  
control;  
* LED display in thruway and public place  
* 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 provide 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 setting is DC 3.6V. Using better ripple factor, KYL-500L transceivers  
3
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
can also share power supply with other equipments. If available, a  
voltage-stabilizing chip with 3.6V voltage is more recommended as the power  
supplier than Switch power. But if only switch power supply available, the jam  
caused by switch pulse should be avoided. In addition, a reliable grounding must be  
used if there are other devices in the system. 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. Connection Definition with terminal  
KYL-500L transceivers provide 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  
Grounding of power supply  
Power supply DC  
Vcc  
5V  
RxD/TTL  
TxD/TTL  
Serial data input to the transceiver  
TTL  
TxD  
RxD  
Transmitted data out of theTTL  
transceiver  
Signal  
5
6
7
8
SGND  
A (TXD)  
B (RXD)  
SLEEP  
A of RS-485(TxD of RS-232)  
B of RS-485(RxD of RS-232)  
A(RxD)  
B(TxD)  
Sleep control (input)  
Reset signal(input)  
TTL  
TTL  
Sleep signal  
High  
sleep  
level  
9
RESET  
Negative  
pulse reset  
3. The connection schematic diagram between computer and our RF module  
4
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
4. Setting of channel, interface, and data format  
Before using KYL-500L, the user needs to make simple configuration according  
your own needs to determine the channel, interface mode and data format. You  
can view or change the module's interface baud rate, channel and address code.  
Please read or set the parameters as per the testing software KYLCOM.exe (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 user’s needs.  
5. Installation dimension (mm):  
5
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
6. The Function-indicator light  
a. The LED indicator light will turn red for 0.5S once switched on.  
b. The LED indicator light will turn green continually while receiving data from  
air.  
c. The LED indicator light will turn red continuously when transmitting data into  
air after receiving data from COM.  
d. If the module moves to sleep mode, 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. 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:  
In order to reduce more consumption, KYL-500L transceivers support Sleep  
function. In sleep mode, the current consumption is less than 1uA.  
a. How to use the 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 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  
6
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
delays 100ms after switching on  
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:  
b. The delay time of transceivers between the first bit sent by TxD to the first  
bit received by RxD.  
As data processing happens on user’s data by KYL-500L transceiver using FEC  
(Forward Error Correction) or other correction algorithm, when RxD of  
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 Delay  
RF Date Rate Delay  
(bps)  
1200  
Ts(mS)  
90  
(bps)  
9600  
Ts(mS)  
16  
7
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
2400  
4800  
48  
19200  
10  
30  
Timing diagram:  
c. Error dealing procedure:  
To enhance the reliability and stability of user’s systems, a verified bit or a  
Cyclic Redundancy Check (CRC) mode is highly recommended to resist 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 users to resist the wrong information by using  
Automatic Error Request Equipment (ARQ).  
Reasons:  
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. So 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, it will resend this wrong packet using ARQ mode. So 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 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.  
8
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
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.  
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 demands on antennas, please specify, we can design and produce  
for you individually.  
V. Network 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 will be deserted without  
9
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
ShenzhenKYLCommunicationEquipmentCo.,Ltd  
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: <400mA;  
* Sleep current: <1uA;  
* Interface data format: 8E1/8N1/8O1;  
* Working temperature: -40ꢀ~+80ꢀ (industrial standard)  
* 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  
Manufacture  
Type  
24:2400bps  
48:4800bps  
96:9600bps  
192:19200bps  
10  
Fax: +86-755-83408785  
sales02@rf-data.com  
www.rf-data.com  
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