For the full technical schematic and official documentation, you can access the following resources: Urmet Official Portal Urmet Service & Manuals
If audio works but the door doesn't open, check the bridge or common wire on terminal 6. If the call doesn't sound, ensure the system uses an electronic generator; if it's an old buzzer system, the 1131 will not ring.
For the full technical schematic and official documentation, you can access the following resources: Urmet Official Portal Urmet Service & Manuals
If audio works but the door doesn't open, check the bridge or common wire on terminal 6. If the call doesn't sound, ensure the system uses an electronic generator; if it's an old buzzer system, the 1131 will not ring. urmet 1131 manual full