Guest Lee Posted June 4, 2011 Share Posted June 4, 2011 Hi, I wounder if anyone could please advise me on this? I have a Scantronic 9651 Control Panel and I'm a little unsure as how to connect the external bell. The Control Panel as the following connections: OP1 OP2 TR 12vAUX 0v I understand that OP1 and OP2 apply a negative, TR is for tamper and 12v/0v supply the power. The bell box has the following connections: STB+ STB- HOLDOFF+ HOLDOFF- RTN TRG This is now I think they should wire together: OP1 to TRG OP2 to STB- TR to RTN 12V to HOLDOFF+ 0V to HOLDOFF- I wanted to check this was correct before I connected for real in case I damage something. Can you please advise? Much appreicated! Link to comment https://www.thesecurityinstaller.co.uk/community/topic/31714-scantronic-9651-and-bell/ Share on other sites More sharing options...
mma Posted June 4, 2011 Share Posted June 4, 2011 Excellent. 10 out of 10. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/31714-scantronic-9651-and-bell/#findComment-274351 Share on other sites More sharing options...
itesecurity Posted June 4, 2011 Share Posted June 4, 2011 100% correct !! Link to comment https://www.thesecurityinstaller.co.uk/community/topic/31714-scantronic-9651-and-bell/#findComment-274352 Share on other sites More sharing options...
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