I have installed a Scantronic 9448 to replace an old control box. Everything is OK except for the connection of the existing bell box, which is an old simple siren, with only power connections, ie. no strobe or tamper facilities (not ideal, I know, but I don't want to have to rewire a new one).
My question is, how to connect this to the control box. The terminals in the 9448 are as follows:- Strobe, Bell, 12V, 0V, TR, +, LS, O/P, Data, CLK. The internal speaker is connected to the + and LS terminals. I have connected the old bell box to the Bell and 12V, and looped the 0V and TR connections as there is no tamper circuit. Does this sound right? The trouble is, the bell box is not working. All advice gratefully received.
My question is, how to connect this to the control box. The terminals in the 9448 are as follows:- Strobe, Bell, 12V, 0V, TR, +, LS, O/P, Data, CLK. The internal speaker is connected to the + and LS terminals. I have connected the old bell box to the Bell and 12V, and looped the 0V and TR connections as there is no tamper circuit. Does this sound right? The trouble is, the bell box is not working. All advice gratefully received.