SK109 : 1.5W 4 Channel Wireless Relay Module With Pairing Function And ESD Protection-Wireless IO & 4-20mA modules

SK109 is an industrial 4 channel wireless relay module with pairing function, it provides maximum four channel signal input and maximum four channel control output. It features in simple interface and reliable performance. The parameters can be modified by PC software / UART command / remote controller (SK109-S). DIP switch on the module can used to change operating frequency (maximum 16 group), operation mode etc. Using this module, user can replace wired device with the wireless connection, which significantly reduce the cost and save much time.
SK109 strictly uses lead-free process for production and testing, and meets RoHS and Reach standards.

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Note: below parameters were tested under voltage 12V and temperature 25℃.

Parameter	Min	Typ.	Max	Unit	Condition
Condition
Working voltage	9	12	30	V
Working temperature	-40	25	+85	℃
Current Consumption
Rx current		<20		mA
Tx current		<300		mA
Standby current		<5		mA	@12V timing mode Master don’t send message
RF Parameters
Output power		31.5		dBm
Sensitivity		-121		dBm	@1200

Features of Wireless Relay Module SK109

Application link of switch control module SK109

Pin definition of the switch control module SK109

Pin NO.	Pin	Description
1	GND	Connect negative power
2	VCC	Connect positive power
3	IN1	Ch1 switch input, internal pull up
4	GND	Ch1 switch input, internal pull up
5	IN2	Ch2 switch input, internal pull up
6	GND	Ch2 switch input, internal pull up
7	IN3	Ch3 switch input, internal pull up
8	GND	Ch3 switch input, internal pull up
9	IN4	Ch4 switch input, internal pull up
10	GND	Ch4 switch input, internal pull up
11	NC	Reserved, Non-Connected
12	NC	Reserved , Non-Connected
13	OUT1	Ch1 relay output
14	OUT1	Ch1 relay output
15	OUT2	Ch2 relay output
16	OUT2	Ch2 relay output
17	OUT3	Ch3 relay output
18	OUT3	Ch3 relay output
19	OUT4	Ch4 relay output
20	OUT4	Ch4 relay output

Mechanical dimensions of the switch control module SK109