15
Due Fili Plus telephone interface
6. Technical characteristics
• TELEPHONE INPUT:
- Input voltage: 24-48 VDC
- Maximum absorbed current:
• Standby: 38 mA
• Calling: 50 mA
- Ring signal recognised: 35Veff 25Hz/50Hz
- Busy tone recognition: Frequency 425Hz +/- 5Hz; minimum tone duration 300ms
• DIGITAL BUS INPUT: Conforming to the Due Fili Bus
• DIMENSIONS: H x L x D: 85x53x66mm (3 DIN modules)