Provides redundant loudspeaker loops for public address and voice alarm systems
Dramatically reduces cost and complexity of installations, by largely eliminating expensive E30 cabling
Six loudspeaker loops per Master Unit, and up to 50 Isolator Boards per loop
Operates on 24 and 48 VDC backup power
Walk Test mode and installation test button for easy fault-finding and installation
| Mains power supply | |
| Voltage | 115 / 230 VAC, ±10%, 50/60 Hz |
| Fuse rating | T6.3 A, 250 V |
| Inrush current | Time: < 10 ms; ≤ 30 A |
| Max. power consumption | 150 W |
| Battery power supply | |
| Voltage | 18 – 56 VDC nominal 24 or 48 VDC |
| Backup fault detection level | 21 ± 1 VDC |
| Max. backup power current | 4.5 A |
| Hardware Interfaces | |
| 100 V audio I/O (loop 1‑6) | Pluggable screw connector |
| Fault output (loop 1‑6) | Floating contacts 24 V, 1 A |
| Fault relays except general fault relay | OK state is normally de-energized NO is open |
BOSCH |
