Connection from Optima xm panel to Pyronix Deltabell?

Im just updating my system. I have acquired a Pyronix Deltabell plus. and I'm trying to connect it to a Optima xm 6 control panel.

Could someone please give me the connections between the bell box and the control panel.

I have the POS.NEG. Triger-ve. connections ok , but don't know what to do with th Strobe pos. and neg. connection from the control panel to the bell.

Any help on this would be very welcome.

Best regards

Tony