Features and application:

Features:

• Frequency hopping algorithm

• Up to 3Km line-of-sight in open area

• 16 predefined channels

• Parameters configurable by PC software/ Remote

• controller/ UART Command

• Real-time/Timing working mode for optional

• GFSK modulation

• Bi-directional wireless switch control

• anti-interference

• Sensitivity up to -121 dBm

• Maximum output power: 1 W

• Indicate and alarm when battery low

• Working voltage 9 ~ 18 V

• Working temperature range: - 40 ~ + 85 ° C

• Weight: 143g

Applications:

• Remote control switch control

• Security system

• Home automation remote sensing

• Wireless remote telemetry

• Building automation and security

• Access control system

Specification:

Electrical characteristics:

Functional description:

Interface:

The description of interfaces as below

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 a regular connection:

DIP Definition:

Dip switch Settings (valid when power on again )

DIP8—Normal working mode selection

ON—Real-time mode ( In this mode, when state changes in input port, it transmit signal immediately)

OFF—Timing mode (Signal transmitted at the predefined time interval according to the setting of DIP6)

DIP7—master/slave selection

ON—the master

OFF—the slave

DIP6—Time interval selection of timing mode

ON—Slow time (configurable, default 30S)

OFF—Fast time (configurable, default 2S)

DIP5—Mode selection

ON—Normal working mode

OFF—Configuration mode (Wireless setting on PC via configuration module K108-S)

DIP4~1 —Working frequency channel selection, a total of 16 channels(default channel interval: 0.5M), frequency is

configurable through PC software / UART Command/ Remote controller SK108.

Relationship between DIP switch and working frequency channel:

Pin and dimension:

Pin definition:

Mechanical dimension: