How to connect a Defender Bell Box to a Scantronic 9448-90 panel?

Almost forgot, adding a please at the end does wonders.

Alarm
January 2011

First in each is the 9448, 2nd the defender.

STR-.............Strobe Trigger
Bell-..............Siren Trigger
12v...............Supply Hold Off
0v.................Supply Hold Off
TR.................RTN Signal

Then put a link between Com and -ve on the Defender.

Alarm
January 2011