veritas r8 alarm door contact removed?

You need to put the contact back.
You also need to work out what pair is the alarm circuit and the alarm circuit.
Twist one pair together, try red and black and blue and yellow see if the tamper goes out. alternativly open the panel and see what in in the zone for the contact. Just remember there is mains in the panel so if unsure get in someone who can.

Alarm
January 2011