After initial difficulties, but they were known to be somewhat complicated due Secvest IP, the siren is functioning properly. The Secvest IP is anyway hard to install for a layman or configure. Manifests knowledge of network & security system are therefore a prerequisite. Details for future buyers: The external siren can be set up only on the channel 4 (detectors that have been set on this channel must be otherwise remodeled). In addition, the menu of the Secvest 7 has the siren are activated. Even after the existence jumper CON3 must be seen, for activating the siren it must be removed.
As you can see, a lot of things to consider if you ... but then everything was real, the potential burglars are "spoiled" by an almost deafening squeal ... PS: For all those who say, was the siren to softly, maybe turn the hearing aid ?! ;-)