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YS-C20UA
YS-C20UA RF Modules
Item Code:

* Modulation mode: GFSK/FSK

* Working frequency:400MHz~470MHz, 868MHz, 915MHz;

* Power supply: DC 5V (3.3~3.6V informed when placing the order);

* RF power: ≤10mW, 50mW~100mWis available;

* RF data rate: 1200/2400/4800/9600/19200bps(Set before delivery);

* Receive current: <20mA(TTL connect);

* Receive sensitivity: -120dBm(1200bps); -115dBm (9600bps);

* Transmitting current:<40mA;

* Sleep current: <20uA;

* Interface data format:8E1/8N1/8O1;

* Working humidity: 10%~90%relative humidity without condensation;

* Working temperature:-35℃~+75℃( industrial)

* RF Line-of-sight Range:600m(BER=10-5@9600bps);

1000m(BER=10-5@1200bps);

* Size: 47mm*26mm*10mm (without antenna port).

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Product Details

I: About YS-C20UA

YS-C20UA, the micro power wireless transceiver data module is used as the wireless data transceiver in short-ranges, with the small size, weight and power consumption and good stability and reliability. Narrow band low power UHF wireless data transmitters and receivers with channel spacing as low as 25 KHz.

YS-816 Analog Wireless Acquisition Module has the function for analog acquisition and wireless transmission, do not re-empolder,it can achieve the function for wireless remote controlling and collecting data with a low cost. It is industrial design and has a wide work temperature so that can meet client’s requirement for whole day using. Besides, the RF adopts narrow band FM and has high anti-jamming. Accord with EN300220.

 

II: Features:

1. Technical specification of YS-C20UA

* Modulation mode: GFSK/FSK

* Working frequency:400MHz~470MHz, 868MHz, 915MHz;

* Power supply: DC 5V (3.3~3.6Vinformed when placing the order);

* RF power: ≤10mW, 50mW~100mWis available;

* RF data rate: 1200/2400/4800/9600/19200bps(Set before delivery);

* Receive current: <20mA(TTL connect);

* Receive sensitivity: -120dBm(1200bps); -115dBm (9600bps);

* Transmitting current:<40mA;

* Sleep current: <20uA;

* Interface data format:8E1/8N1/8O1;

* Working humidity: 10%~90%relative humidity without condensation;

* Working temperature:-35℃~+75℃( industrial)

* RF Line-of-sight Range:600m(BER=10-5@9600bps);

1000m(BER=10-5@1200bps);

* Size: 47mm*26mm*10mm (withoutantenna port).

 

2 Features of YS-C20UA

1. Low power transmission with 10mW, 50~100mW is available if needed.

2. With 433MHz as factory default carrier frequency, but400-470MHz, 868MHz, 915MHz is available if needed.

3. High anti- interference and Low BER (Bit error Rate)

Based on the Gaussian Frequency Shift Keying (GFSK) modulation, the high-efficiency forward error correction channel encoding technology is used to enhance data’s resistance to both transient interference and random interference and the actual bit error rate of 10-5 ~ 10-6 can be achieved when channel bit error rate is 10-2.

4. Long Transmission Distance

Within the visible range, when the height of antenna is higher than 2m and The Bit Error Rate (BER) is 10-3, the reliable transmission distances respectively is 1000m @1200bps, and is 600m@9600bps.

5. Transparent data transmission

Transparent data interface used in transceivers is for meeting many standard or 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

YS-C20UA transceivers offer 8 channels, if needed, 16 or 32 channels are available to satisfy various configuration of communication under user’s demand at the same time.

7. 2 ports with three connection methods

YS-C20UA transceivers provide 2 ports with three connections, ports: a UART interface of TTL level, a non-standard RS-232 port and a non-standard RS-485 port.

8. Big data buffer area

With optional interface baud rate: 1200/4800/9600/19200bps and 8N1/8E1/8O1 data format (set 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.

9. Intelligent data control and no any extra programs required

Even for half duplex communication, no any excessive programs required. All RF system data transmission/reception and other On-the-Fly conversion and control are performed by YS-C20UA transceivers automatically.

10. Lower power consumption & Sleep function

With +5V power, the receiving current is less than 20mA, the transmitting current is less than 40mA, and the sleeping current is less than 20uA.

11. High reliability, small and light

By using monolithic radio-frequency integrated circuit and single-chip MCU, the

transceiver shave less peripheral circuit s, high reliability, and low failure rate.

12. More options of configurable antennas for user different applications.

13. Watchdog monitor

Watchdog monitors the inner function, so it can change the traditional product structure and also improve the reliability of our modules.

 

III: Application of YS-C20UA:

YS-C20UA the micro power wireless transceiver data module is suitable for:

* AMR Automatic Meter Reading

* Wireless alarm and security systems

* Building automation, security, wireless monitoring and control of room equipment, Access Control System;

* Wireless data transmission, automatic data collection system;

* Radio modem can be used for Sports training & competition;

* Wireless dishes ordering;

* Wireless POS, PDA wireless smart terminal;

* RF modem can be used for Electronic bus station and intelligent traffic;

* RF transmitter Wireless electronic display screen and queuing machine;

* Wireless telemetry Charging for parking, parking lot;

* Wireless modem Automobile inspection and four-wheel orientation;

* Wireless sensor Industrial wireless remote control and air conditioning remote controller;

* Data communication used for railway, oil field, dock and army.

* LED display in thruway and public places

* Point to multi-point wireless network, wireless on-the-spot bus and automatic data collection system;

 

 

 

V. Networking Application of YS-C20UA

The communication channel of YS-C20UA 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 add ressis 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 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.

YS-C20UA 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.

 

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