Art. 317 connects to the 2-wire BUS and allows the connection of four devices (intercoms or videophones). An Art.317 is required for every 4 intercoms/ videophones. If there is a problem on an intercom or videophones, the Art. 317 will isolate all 4 units connected to it without affecting the functioning of the rest of the system. Up to 25 devices on the same BUS riser (100 apartments) Improved video signal amplification Simplified 3 level video amplification settings (low, medium and high) Green LED for BUS voltage signal Red LED for BUS output short circuit indication Electronic short circuit protection to isolate the device from the bus allowing other devices to continue operating normally
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