Take the 2-minute tour ×
Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It's 100% free, no registration required.

I've got a Comelit Okay Simplebus2 door entry system which yesterday wasn't able to be used to let someone into the building, however I'm not sure if the buttons next to the phone were being used correctly.

The interface has 2 buttons, 1 with a key and 1 with a lightbulb symbol, and I'm wondering if anyone has seen this style before and knows how it should be used?

enter image description here

I've tried calling the manufacturer but like most places the phone line's closed at weekends

share|improve this question

1 Answer 1

It can be configured to turn on an external light

share|improve this answer
Please improve this answer by explaining how. –  Niall C. Oct 19 '13 at 23:36

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.