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House Coding SmartLINK, RadioLINK+ and RadioLINK Products

How to set up a SmartLINK, RadioLINK+ and RadioLINK interconnected system (House Coding)

SmartLINK, RadioLINK+ and RadioLINK use Radio Frequency signals for wireless interconnection making installation quicker and easier. Once you have installed all your RadioLINK products you will need to set them up in a system to recognise each other and then close this system off to avoid the alarms being triggered by neighbouring systems – we call this House Coding.


House Coding Ei168RC RadioLINK Bases, Ei100MRF RadioLINK+ Modules or Ei3000MRF SmartLINK Modules


  • Step 1 – Ensure all your alarms have been installed and tested and you have inserted your Ei100MRF or Ei3000MRF modules into your 160e Series ,Ei2110e alarms  or Ei3000 Series
  • Step 2 – Push a screwdriver into the House Code slot on the side of the alarm or RadioLINK base
  • Step 3 – Hold it in until the blue LED comes on solidly, then release
  • Step 4 – Remove the screwdriver and the blue LED will flash once every 5 seconds (approx.) to indicate that it is in House Code mode and is looking for other alarms
  • Step 5 – Repeat the House Code process in Steps 1-4 above with all the bases or alarms in your system
  • Step 6 – All the bases in the system will start to flash blue. Check that the number of flashes is the same as the number of alarms in the system, e.g. if there are 3 alarms, the blue LED will flash 3 times every 5 seconds on every alarm
  • Step 7 – Once the correct amount of flashes is present on every unit, insert a screwdriver into the House Code slot on the side of one of the alarms or bases until the blue LED comes on solidly, then release
  • Step 8 – The blue LEDs on all units will now stop flashing and the entire system will automatically ‘seal’
  • Step 9 – The alarm system has now been House Coded. Press and hold the test button on each alarm in turn and check that all alarms in the system sound


Although we recommend the above procedure for House Coding and sealing a RadioLINK system, it is worth noting that the system will manually seal itself after 30 minutes once put into House Code mode.


RadioLINK+ additional features


RadioLINK+ units have an additional ‘remote House Coding’ feature which makes it easier to add new units to an existing system that has already been House Coded

  • Step 1 – push a screwdriver into the House Code slot on one of the existing House Coded units and hold until the House Code LED flashes a green, blue and red tri-colour. This will put all the existing RadioLINK+ alarms in the system into Remote House Code mode
  • Step 2 – A new alarm can then be added into the system. Put the new unit into House Code mode as described above and again check the number of flashes matches the number of units in the system. Once the number of flashes on all units is correct, seal the system and test as described above


If you would like to know more about RadioLINK, RadioLINK+ or SmartLINK, please view our dedicated technology pages