Features and application:

Features:

•  Distance up to 8Km in open area

• 16 channels to choose

•  Parameters set wirelessly by PC

•  Real-time / Timing mode

• GFSK modulation

• Antennamatches automatically

• Bi-directional switch control

• Sensitivity to -121 dBm

• Max.output power：5 W

• Working voltage: 9~30 V

• Workingtemperature：-40 ~ +85 °C

• Weight：180g

Application:

• Remote switch control

• Security system

• Home automation remote sensing

•  Wireless remote telemetry

• Building automation and security

• AccessControl System

Specification:

Electrical characteristics:

Functional description:

Schematic diagram:

DIP definition:

DIP function description:

DIP8—communication mode selection

ON – real-time mode ( In this mode, output sync to the input immediately once the input state changed) 

OFF - timing mode ( output sync to in the input at set time interval )

DIP7 - master/slave selection 

ON - the master  

OFF - the slave

DIP6 – time interval selection of timing mode 

ON – nonpairing mode ( valid when DIP 5 is On )

OFF – pairing mode ( pair the module in this mode, valid when DIP 5 is On )

DIP5 - mode selection 

ON - normal working mode 

OFF - setting mode ( connect the module to PC by SK108-S, set the parameters)

DIP4 ~ 1 - working frequency channel selection, 16 channels in total (default channel interval is 0.5M), the frequency can be reset by PC. 

Relationship between DIP switches and working frequency channel:

Application connection:

The input port is pulled up internally, leave open or connect with 3.3V will result in a high level, it is low level
when connecting to GND.
A high level will make the output of the other side short out. And low level will make the output of the other
side open. Below is regular connection：

Pin and dimension:

Pin definiton:

Mechanical dimension: