shenzhen kylcom communication equipment co., ltd.rf models rf io models-凯发官网入口

1.power transmission

  low power transmission with 2w,high receiver sensitivity -123dbm(1200bps);-118dbm(9600bps),
 small size 80mm×45mm×20mm (without antenna connector)

2.with 433mhz as factory default carrier frequency, 400~470mhz ism frequency is available if needed.

3.high anti- interference and low ber (bit error rate)

  based on the gaussian frequency shift keying (fsk/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 ( line-of-sight distance）

    5km (ber=10-5@9600bps,standard antenna length 10cm,the height of antenna 1.5m)；

    7km (ber=10-5@1200bps,standard antenna length 10cm,the height of antenna 1.5m)；

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).

  transceiver conversion time：<10ms

6.multi-channels,multi baud rate

  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.

  baud rate：1200、2400、4800、9600、19200 etc.

7.high speed wireless communication and big data buffer area    

  when air baud rate is greater than interface baud rate, unlimited data can be continuously transmitted.
  when baud rate is less than or equal to interface baud rate, can transmit one frame 128 bytes of data.

8.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 kyl-300m transceivers automatically.

9. lower power consumption & sleep function

   with 5v power, the receiving current is less than 30ma, the transmitting current is less than 1.5a, and the sleeping current is less than 20ua.

10.high reliability, small and light

   by using monolithic radio-frequency integrated circuit and single-chip mcu, the

   transceivers have less peripheral circuit s, high reliability, and low failure rate.

11.provides square wave transmission function for customers using non-standard coded .

amr automatic meter reading；

    building automation, security, wireless monitoring and control of room equipment,access control system;

    wireless alarm and security systems, wireless queuing machine and wireless medical containers;

    wireless pos, pda wireless smart terminal ;

    wireless data transmission, automatic data collection system;

    wireless led display, responder and intelligent traffic;

    converting rs-485 cable to wireless communication, such as plc。

                                                     300m interface schematic

table: channel and rf frequency

1、when module a transmits data and module b receives data

 that is, the delay time that the terminal a (connected to the module a) sends data to the terminal b
(connected to the b module) by wireless. which be fixed to the time for transmitting 15 bytes. this time is related to the air baud rate,
but not to the interface baud rate. details as follows:

 
table: baud rate and delay time

2、module transceiver conversion time

 that is, the time for converting from the receive state to the transmit state, or from the transmit state to the receive state. during this time (100us), the module cannot receive air data.

power supply：

      3.3~5.0v dc,according to the needs of users, it can share the power with other devices, but please select a power supply with a better ripple factor.if conditional, 5v regulators can be used to supply power alone. it is recommended not to use the switching power supply. if you must use the switching power supply, please pay attention to the interference due to switching pulse.in addition, if there are other devices in the system equipment, it must be grounded reliably. otherwise, it can be self-contained, but it must be completely separated from the city electricity. the maximum output current of the power supply should be more than 1.5 times the maximum operating current of the module.

connection diagram for wireless module and computer：