APPEARANCE

External Appearance

FEATURES

Application

Product Block Diagram

RD-800 has the complete RF receiving and transmitting circuit and interface,  main components are as followings: DSP processor, circuit of RF frequency, memory, power and system connector and all can connect outer antenna. When through system connector is able to link 8 sets control signal input port and 8 sets equipment control output port.

In Chart 1, inside the red line frame is the each component part of the main board of RD-800. The outside of red line is outer interface. RD-800 main board has finished all the function of wireless control. Include RF specification and the code of RF data, regulation frequency indication. Additionally, the main board also include: 8 sets control signal input port and 8 sets equipment control output port. LED light instruction. Following, we will separate to introduce each part function of main board and outer interface.

Introduction of Each Function

DSP Processor 

DSP processor finished all signals handle function of RD-800HI, including receiving and transmitting RF data, LED light instruction, and judgment of the button.

• Circuit of radio frequency
  The circuit of radio frequency offers the pass way of receiving and transmitting of 902~928MHz. Including receiving circuit, transmitting circuit, frequency compose the circuit.

• Memory 
  The memory is mainly used in storing the present working frequency and RF transmitting speed.

• Circuit of the power 
  Circuit of the power offered AC 24~28V or DC 20~28V input in power supply.

  Indication Position	Item	Description
  1	AC/DC Input	Outer power input
  2	Controlled Signal Input	Provide 8 sets signal input
  3	Device Controlled Output	Provide 8 sets signal output
  4	Antenna	The position for antenna ***.
  5	Setting Key	Function setting
  6	Track	Put in the position of aluminum track

8 PIN In and 8 PIN Out, simple terminal PIN In, may penetrate the dip switch to control, also may penetrate the PC to control. When it's no signal, it demonstrates that the input -output has the photocoupler to be the interface, and prevents the wave form of applied voltage.

RD-800 is a module of 8 points PIN In and PIN Out, including transceiver and receiver module TRW-909HI (902~928MHz),greatly reduce consumer's operational complexity, 8in8out I/O not only penetrates the Terminal to finish wiring easily, but also can permeate the PC control, proceed a pair of many communications.

For duplex wireless RF transceiver product

• Wireless 8 in-out control box

• 8 sets of equipment input control

• 8 sets of equipment output control

• Effective reducing the connecting cost of the equipment

Automatic switching devices

SPECIFICATION

Technical specifications 

• Frequency : 902~928MHz

• Distance : 150M (Straight-line distance under open space)

• Number of Channels : 16

• Consumption Current : 36mA (MIN disconnect)

• 8 PIN in and 8 PIN out.

• Simple terminal PIN in.

• May penetrate the switch to control

• Possess showing if have signal´s function.

• It demonstrates the input -output has the photocoupler to be the interface, and prevents the wave form of applied voltage.

• Item	Specification	Remark
  Voltage Range	AC:24~28V ; DC:20V~28V
  Frequency Range	902~928MHz
  Output Power	0.5W (2W special demand)
  Antenna	1/4λ wire antenna	Gain of 2.14 dBi or less
  Antenna Power	Within 8 (+20% -50%)	Contact (50 Ω)
  Modulation System	Binary FSK
  Oscillation System	PLL synthesizer system
  Radio Communication Speed	10Kbps
  Number Of Channels	16
  Receiver Sensitivity	-112 dBm (1200 bps)	Packet error rate 1% (253 bytes/1 packet)
  Working Temperature	-10℃ ~+70℃
  Storage Temperature	-30℃ ~+95℃
  Consumption Current	MAX:300mA MIN:Disconnect:36mA  Connect:43mA