-t --on                 send an on signal
-f --off                send an off signal
-s --systemcode=system  control a device with this id
-u --unitcode=unit      control a device with this unit code

"devices": {
	"Switch": {
		"protocol": [ "logilink_switch" ],
		"id": [{
			"systemcode": 0,
			"unitcode": 0
		}],
		"state": "closed"
	}
}

None

This protocol sends 50 pulses like this

284 852 852 284 852 284 284 852 284 852 852 284 284 852 284 852 852 284 852 284 284 852 284 852 284 852 852 284 852 284 284 852 284 852 852 284 852 284 284 852 852 284 284 852 284 852 284 852 284 9656

It has no header and the last 2 pulses are the footer. These are meant to identify the pulses as genuine, and the protocol also has some bit checks to filter false positives. We don't use them for further processing. The next step is to transform this output into 24 groups of 2 pulses (and thereby dropping the footer pulses).

284 852
852 284 
852 284 
284 852 
284 852 
852 284 
284 852 
284 852 
852 284 
852 284 
284 852 
284 852 
284 852 
852 284 
852 284 
284 852 
284 852 
852 284 
852 284 
284 852 
852 284 
284 852 
284 852 
284 852 

If we now look at carefully at these groups you can distinguish two types of groups:

1. 284 852
2. 852 284

So the first group is defined by a high second pulse, the second group has a low second pulse. We then get the following output:

01100100110001100110 1 000

Each (group) of numbers has a specific meaning:

• SytemCode: 0 till 19
• State: 20
• UnitCode: 21 till 23

01100100110001100110 1 000

• The SystemCode is defined as a binary number
• The State defines whether a switch state is Opened or Closed
• The UnitCode is defined as a binary number and represents the button pressed, e.g. A, B or ALL

So this code represents:

• SystemCode: 412774
• State: Opened
• Button: All