Nova-Security Posted March 25, 2018 Share Posted March 25, 2018 HV is normally voltage on circuit pair. www.nova-security.co.uk www.nsiapproved.co.uk No PMs please unless i know you or you are using this board with your proper name. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/40447-urn-enquiry/page/2/#findComment-475376 Share on other sites More sharing options...
scrimshanker Posted March 27, 2018 Share Posted March 27, 2018 Normally voltage? Eh? Link to comment https://www.thesecurityinstaller.co.uk/community/topic/40447-urn-enquiry/page/2/#findComment-475443 Share on other sites More sharing options...
Nova-Security Posted March 28, 2018 Share Posted March 28, 2018 HV is voltage getting on to alarm pair www.nova-security.co.uk www.nsiapproved.co.uk No PMs please unless i know you or you are using this board with your proper name. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/40447-urn-enquiry/page/2/#findComment-475505 Share on other sites More sharing options...
scrimshanker Posted March 28, 2018 Share Posted March 28, 2018 Normally voltage? Eh? Oh, you mean induced voltage across the alarm tamper pair. Got it Link to comment https://www.thesecurityinstaller.co.uk/community/topic/40447-urn-enquiry/page/2/#findComment-475506 Share on other sites More sharing options...
goncall Posted March 28, 2018 Share Posted March 28, 2018 Not sure what 9651 was referring too regards hv was this sia code,could of been ht but hv if in log is actually cv (control voltage) either induced or an attempt to disable the zone Link to comment https://www.thesecurityinstaller.co.uk/community/topic/40447-urn-enquiry/page/2/#findComment-475507 Share on other sites More sharing options...
9651 Posted March 28, 2018 Share Posted March 28, 2018 HV is holdup confirmed Link to comment https://www.thesecurityinstaller.co.uk/community/topic/40447-urn-enquiry/page/2/#findComment-475516 Share on other sites More sharing options...
Nova-Security Posted March 29, 2018 Share Posted March 29, 2018 Depends how you read the post HV on a galaxy or HV on SIA Dont know if i like the way confirmed HU works on a galaxy yet www.nova-security.co.uk www.nsiapproved.co.uk No PMs please unless i know you or you are using this board with your proper name. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/40447-urn-enquiry/page/2/#findComment-475569 Share on other sites More sharing options...
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