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PDF KYL-300H Data sheet ( Hoja de datos )
| Número de pieza | KYL-300H | |
| Descripción | high RF power radio modem | |
| Fabricantes | Shenzhen KYL Communication | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de KYL-300H (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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Shenzhen KYL Communication Equipment Co., Ltd
KYL-300H High Speed Data Radio Module
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: +0086-755-83410815
Fax: +0086-755-83408785
Skype：lxmlosia
Yahoo messenger: [email protected]
MSN: [email protected]
Website: http://www.rf-data.com
Fax: +0086-755-83408785 [email protected] www.rf-data.com
1
1 page  
Shenzhen KYL Communication Equipment Co., Ltd
KYL-300H 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
1 GND
Grounding of power supply
Connection
with terminal
Ground
Remarks
2 Vcc
Power supply DC
5V
3 RxD/TTL Serial data input to the transceiver TTL
TxD
4 TxD/TTL
Transmitted data out of the
TTL
RxD
transceiver
5 SGND
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
9 RESET
Sleep control (input)
Reset signal(input)
TTL Sleep signal High level
sleep
TTL Negative
pulse reset
3. The connection schematic diagram of KYL-300H transceivers with terminal.
VCC 12V
GND
9
1
4. Setting of channel, interface and data format:
Before using KYL-300H, the user needs to make simple configuration based on its 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 KYLPRO.exe in the PC (in
Fax: +0086-755-83408785 [email protected] www.rf-data.com
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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.
Due to a data processing will be made on user’s data by KYL-300H transceiver using
FEC (Forward Error Correction) or other correction algorithm, when RxD of a
KYL-300H 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
2400
4800
Delay
Ts(mS)
90
48
30
RF Date Rate
(bps)
9600
19200
Delay
Ts(mS)
16
10
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-300H modules.
d. Large-number data transmission
In theory, when the interface data rate is faster than the RF data rate, KYL-300H
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,
Fax: +0086-755-83408785 [email protected] www.rf-data.com
11
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| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet KYL-300H.PDF ] | |
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