mounting in vista 20p cabinet

[rodbarnes]

The mounting holes on the board do not match up with any holes on my vista 20 P cabinet.
What diameter should the cabinet holes be to use the plastic standoffs. I can drill the cabinet.

[Robbed twice]

Take and lay the module on a piece of paper, draw a outline of the module then with a pencil poke a hole thru the paper in the 3 mounting holes, cut out lay on the box where you want to mount it and take a sharpie marker and poke in each hole to make the marks on the panel then drill your 3 holes starting with an 1/8" bit then a 3/16" bit, fits perfect.

[GrandWizard]

We are working on a drill template for Vista "cans". Unfortunately Honeywell "cans" aren't as versatile as DSC "cans" where you can mount boards in almost any orientation and in multiple locations. The mounting-hole pattern of the Envisalink lines-up with the DSC side-mount pattern which gives you 4 mounting options in the medium-sized can.

[grabo]

The mounting holes on the board do not match up with any holes on my vista 20 P cabinet.
What diameter should the cabinet holes be to use the plastic standoffs. I can drill the cabinet.

I used Velcro. Each Velcro strip has a sticky backing - one side stuck to the standoffs and the other on the back plate of the panel box. No drilling needed.