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PDF KYL-200U Data sheet ( Hoja de datos )
| Número de pieza | KYL-200U | |
| Descripción | wireless data transceiver | |
| Fabricantes | Shenzhen KYL Communication | |
| Logotipo |  |
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Shenzhen KYL Communication Equipment Co., Ltd
KYL-200U Micro 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 / 82943662
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
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1 page  
Shenzhen KYL Communication Equipment Co., Ltd
1. Power supply
The factory default setting is +5V(3.3-3.6V will inform when placing the order).By
using better ripple factor, KYL-200U 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-200U 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
Fax: +0086-755-83408785 [email protected] www.rf-data.com
5
5 Page 
Shenzhen KYL Communication Equipment Co., Ltd
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:
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-200U transceiver
using FEC (Forward Error Correction) or other correction algorithm, when RxD
of a KYL-200U 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:
Fax: +0086-755-83408785 [email protected] www.rf-data.com
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet KYL-200U.PDF ] | |
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