Procom 4LSL User Manual

4lsl, Data sheet, Loudspeaker impedance monitoring

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Data Sheet

4LSL

Loudspeaker Function Card

4LSL

Loudspeaker Impedance Monitoring

Fig. 4LSL (L- No. 2.830)

At a Glance:

• Active monitoring of impedance on 4 independent LF
channels (configurable deviation thresholds from 1% to 99%)

• Short circuit and wire break recognition

• Ground connection message (recognition through TG01)

and allocation of the loudspeaker circuit

• Minimum load and overload monitoring
(2.5 W>=load<= 150 W)

• Distribution of loudspeaker circuits through independent

power relays

• Generation of positive or negative public address ac-

knowledgements

Date:

13.03.2009 Page:

1/7 Author:

Document-No.:

DB_4LSL_2830_01