On April 18, 2019 at 14:33, Ernie Gilman said...
The ordinary non-lit doorbell button is a dry contact. Doesn't that mean you can use this unit's dry contact so that pushing the intercom button rings the doorbell? As I said, the instructions aren't clear enough to think things through... is that dry contact a part of the intercom push button, or is it a separate switch?
From reading the user instructions I interperate the 24V/2A dry contact as a user controllable output and would not be triggered when the door station push button is used.
From the user manual
Security/Home Automation (Optional)
This optional function can control another system that is properly connected to the NM200. For example: it may control a door release mechanism, turn on the lights, set off an alarm, etc. This function is available from the Master Station and all Remote Stations (NRS200). It is not available from an Outdoor Remote Station. To initiate this feature from a remote station:
1. Simultaneously press VOLUME UP and VOLUME DOWN and hold for at least 4 seconds. After 4 seconds, this feature is active for as long as the buttons are pressed.
2. Release the buttons to deactivate the feature.
