Extra contacts on PIR - how to use them?

[PaulD]

Looking at using some Takex PA-6612 PIR's for occupancy detectors because they are supposed to be pet resistant. Not being used for security role. The literature shows 7 contacts. Two for power and two for dry contacts. However, there are 3 more and I am curious how to use them...if I can. Two are labled for "Tamper" and one is for "M/C Memory".
I am using an HAI OMni Pro II. What are the 3 remaining connections for and is there any function the might play for me in my Omni II setup?

 

[Steve]

Tamper is for security, its basically for protecting the pir against tampering. For HA all you need is your 4 wires - 2 power and 2 zone.