BOSCH LBB4443/00 End Of Line Supervision Board

BOSCH LBB4443/00 End Of Line Supervision Board

The board monitors are the integrity of a loudspeaker line. The boards are working together along with the LBB 4440/00 Supervision Control Board capable of monitoring the status of the loudspeaker line and all of its branches. The line status is communicated to the LBB 4440/00 along with the use of the existing loudspeaker cable. The board is built mounted inside the case of the last loudspeaker on the loudspeaker line or inside a separate case. Supervision of branched lines is made possible. If a loudspeaker line comes with a multiple branches, a separate LBB 4443/00 is required for the last loudspeaker in each branch. The board is capable of detecting and reporting the line faults within 100 s.

Interconnections
• Two 30 cm flying leads
• Two faston connectors

Features

• Loudspeaker line monitoring without additional cabling
• Open-circuit fault detection
• Compatible with 100 V and 70 V loudspeaker lines
• Powering of the supervision-board from the power amplifier
• Communication is not affected by the audio signals on the line