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PDF KYL-210 Data sheet ( Hoja de datos )
| Número de pieza | KYL-210 | |
| Descripción | wireless transceiver module | |
| Fabricantes | Shenzhen KYL Communication | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de KYL-210 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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Shenzhen KYL Communication Equipment Co., Ltd
KYL-210 High speed Rate RF
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(3.3-3.6V will inform when placing the order).By
using better ripple factor, KYL-210 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-210 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
I/O
1 GND
Grounding of power supply
-
Level
-
Remarks
2 Vcc
RS232 TXD
3 TTL TXD
RS485 A
RS232 RXD
4 TTL RXD
RS485 B
5 DGND
6 NC
Power supply DC
Data Transmission
Data Transmission
RS485 A
Data Receiving
Data Receiving
RS485 B
Signal Ground
-
-
O(output)
O(output)
IO
I(input)
I(input)
IO
-
-
3.1~5.5V
RS232
TTL
-
RS232
TTL
-
-
-
Other power
supply need
customized
Choose one
of the three
interface
ports
Choose one
of the three
interface
ports
Fax: +0086-755-83408785 [email protected] www.rf-data.com
5
5 Page 
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-210 transceiver
using FEC (Forward Error Correction) or other correction algorithm, when RxD
of a KYL-210 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-210 modules.
d. Large-number data transmission
In theory, when the interface data rate is faster than the RF data rate, KYL-210
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.
Fax: +0086-755-83408785 [email protected] www.rf-data.com
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet KYL-210.PDF ] | |
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