PRODUCTS
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ASL EOL AC Monitoring Active EOL Unit
ASL EOL AC Monitoring Active EOL Unit
AS-EOL-AEL02
The AEL02 Active End of Line Device enables ASL amplifier systems to monitor either single or dual loudspeaker circuits without the need for DC blocking capacitors in the loudspeakers. This makes it ideal for retrofitting into existing installations where it is not possible to modify the installed loudspeakers. The loudspeaker monitoring using the AEL02 is fully compliant with BSEN 5839 Pt 8. The AEL02 operates by utilising 30 Hz and 20 kHz surveillance tones that are output by the iPAM400 Intelligent Public Address Amplifier Mainframe, or by LSDDC or LSIDC amplifier interfaces in other types of ASL amplifier systems*,**. The AEL02 derives power from the 20 kHz surveillance tone, and monitors the line integrity by detecting the 30 Hz surveillance tone. On detection of the 30 Hz surveillance tone, the unit introduces a periodic signal current which the standard circuit within the ASL amplifier systems unit can detect. If the 30 Hz tone is lost due to open or short circuit, then this periodic signal disappears and a line fault is reported. The earth monitoring circuit within the ASL amplifier system can still detect ‘real’ earth faults.
ASL EOL DC Monitoring - EOL Resistor Pack
ASL EOL DC Monitoring - EOL Resistor Pack
AS-EOL-EOL10K-10PACK
ASL V2000 Dual Line Surveillance Interface
ASL V2000 Dual Line Surveillance Interface
AS-V20-LSZDC
The LSZDC is an amplifier interface card for use with the D500 and D150 Transformerless Class-D Amplifiers. It enables two circuits (A&B) to be fed from a single amplifier.The interface card provides:Amplifier health monitoring via subsonic surveillance tone.Standby switchover.Loudspeaker line earth leakage monitoring.Loudspeaker line ‘End Of Line’ (EOL) monitoring.Relays in series with each output facilitate isolation of faulty speaker circuits. Loudspeaker circuits can be monitored using DC, Impedance or Loop Return methods. Each LSZDC includes powerful on-board DSP (digital signal processing) capability, enabling parametric equalisation, gate and gain settings to be applied separately to each amplifier.
ASL V400 Dual Line Surveillance Interface
ASL V400 Dual Line Surveillance Interface
AS-V40-LSDDC
The LSDDC is an amplifier interface card for use with the M100, M200 and M400 Class-D Amplifiers in a V400 Amplifier Mainframe for Voice Alarm and Public Address applications. Uniquely, it enables two circuits (A&B) to be fed from a single amplifier while still maintaining BS5839 Pt 8 compliance.This interface card provides; amplifier health monitoring via subsonic surveillance tone, automatic control of changeover to standby amplifier, loudspeaker line earth leakage monitoring, and loudspeaker line ‘End Of Line’ (EOL) monitoring. Relays in series with each output facilitate isolation of faulty speaker circuits.The unit also supports a secondary audio input that enables emergency sources to be switched directly to the input of the power amplifiers.A second mode of operation allows loop return monitoring to be implemented or a single loudspeaker circuit can be fed instead of two, if required.
Bosch PAVIRO EOL Module
Bosch PAVIRO EOL Module
BO-PAV-PVA-1WEOL
The End Of Line (EOL) Slave Module monitors the integrity of a loudspeaker line. In combination with an EOL master, integrated in every Controller and Router of the PAVIRO system, the loudspeaker line can be monitored against short-circuit or open-circuit. The status LED of the module can help to check the installation.
Bosch Plena VA Set Of 12 Dummy Load 60W
Bosch Plena VA Set Of 12 Dummy Load 60W
BO-PLE-PLN-DMY60
Provides filtered load at 20 kHzMakes longer loudspeaker lines possibleThree power settingsFits on built?in mounts on selected Bosch loudspeakersEN 54?16 certified
Bosch Plena VA Set of 6 End Of Line Boards
Bosch Plena VA Set of 6 End Of Line Boards
BO-PLE-PLN-1EOL
Pilot tone detection on 100 V loudspeaker linesVoltage free switch 200 V 1 A and LED indications of pilot toneDaisy chainable for monitoring multiple zones on a single input contactFits on built-in mounts on selected Bosch loudspeakersEN 54?16 certified
Bosch Praesideo End of Line Supervision Board
Bosch Praesideo End of Line Supervision Board
BO-PRA-LBB4443/00
Loudspeaker line monitoring without additional cablingOpen-circuit fault detectionCompatible with 100 V and 70 V loudspeaker linesPowering of the supervision-board from the power amplifierCommunication is not affected by the audio signals on the line
Bosch Praesideo Line Supervision Set
Bosch Praesideo Line Supervision Set
BO-PRA-LBB4442/00
Loudspeaker line monitoring without additional cablingSupervision-master mounting in the power amplifierSupervision-slave mounting at the end of the loudspeaker lineOpen-circuit fault detectionCompatible with 100 V and 70 V loudspeaker linesSupervision-slave powered from the power amplifier
Bosch Praesideo Loudspeaker Supervision Board
Bosch Praesideo Loudspeaker Supervision Board
BO-PRA-LBB4441/00
Loudspeaker and loudspeaker line monitoring without additional cablingOpen-circuit fault detectionCompatible with 100 V and 70 V loudspeaker linesPowering of the supervision-board from the power amplifierCommunication is not affected by the audio signals on the loudspeaker line
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