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PDF KYL-300L Data sheet ( Hoja de datos )
| Número de pieza | KYL-300L | |
| Descripción | Wireless RF transceiver modules | |
| Fabricantes | Shenzhen KYL Communication | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de KYL-300L (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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Shenzhen KYL Communication Equipment Co., Ltd
KYL-300L Low Power Wireless
Transceiver Data 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
1. Power supply
The factory default setting is +5V(7.5V-12V will inform when placing the
order).By using better ripple factor, KYL-300L transceivers can also share power
supply with other equipment. If possible, a voltage-stabilizing chip with 5V 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 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-300L 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
5 SGND
Transmitted data out of the
transceiver
Signal
6 A (TXD) A of RS-485(TxD of RS-232)
7 B (RXD) B of RS-485(RxD of RS-232)
8 SLEEP
Sleep control (input)
9 RESET
Reset signal(input)
TTL RxD
A(RxD)
B(TxD)
TTL Sleep signal High level
sleep
TTL Negative
pulse reset
3. The connection schematic diagram between computer and our
Fax: +0086-755-83408785 [email protected] www.rf-data.com
5
5 Page 
Shenzhen KYL Communication Equipment Co., Ltd
8. 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-300L transceiver
using FEC (Forward Error Correction) or other correction algorithm, when RxD
of a KYL-300L 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)
Ts(mS)
(bps)
Ts(mS)
1200 90 9600
16
2400
48 19200
10
4800
30
Fax: +0086-755-83408785 [email protected] www.rf-data.com
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet KYL-300L.PDF ] | |
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