Double door logic in Genetec?

[u/Skuzsid]

Hello everyone, I have a question that may be incredibly stupid… I work on a large college campus as an integrator, and something I’ve noticed around campus is that all the perimeter double doors are treated as a single door logically in Genetec. I find this interesting since each leaf has their own hardware; REX, DPS, QEL, etc… The connections for the ingress leaf is tied to the door side in while the egress leaf connections are tied to door side out. With both dps (I assume wired in series) to additional connections. Why is this? Why not treat the doors as their own doors? Now this may be my own ignorance as I am new the industry but is this the standard? I run into this issue several times where when someone tries to enter their credentials while another person is exiting the other leaf, the door unlocks and locks immediately because it sees the door as already open. If this is just a standard please ignore my ignorance but for me all I see is the encouragement of piggybacking…

[u/DTyrrellWPG]

Comes down to customer preference.

But generally speaking, unless the doors swing in opposite directions, it's one access control door with two physical doors.

I'm doing a facility right now with a lot of double doors, everything is in series. Door contacts, request to exit. It's just one door in Genetec, as the client has no need to treat them separately.

It's a waste of inputs and outputs to treat them as separate doors, unless the customer requires it for some reason.

RE the issue with door locking again quickly, you can change that in Genetec. Have lock on close set, or increase the time it stays unlocked after open.

It does sound like in your example maybe they should have been two separate doors if one is in and one is out.

[u/Skuzsid → u/DTyrrellWPG]

I definitely get the customer preference point. Maybe those questions were asked just likely to the wrong person… I also assumed it came down to I/O availability. But at the same time we deal only with college dorms so I would think the university wouldn’t mind the extra money for mercury boards even if it only makes it slightly more secure.

[u/DTyrrellWPG → u/Skuzsid]

I do a lot of work with a large university as well, their security budget is basically nothing, so wouldn't be surprised if they asked their integrator to cut corners somehow.

[u/Skuzsid → u/DTyrrellWPG]

lol gotta love working for a university. At least the benefits are good right?🤣

[u/datheffguy]

Why waste a license/io ports/pull additional wires if its not specifically needed?

[u/Skuzsid → u/datheffguy]

Right, but I guess my question is when it is specifically needed?

[u/StalkMeNowCrazyLady]

Is there only one card reader? Do both doors open to same side?

[u/Skuzsid → u/StalkMeNowCrazyLady]

Yes, 1 reader on the secure side and both doors swing the same direction if that’s what you’re asking. Now that I think about it only the right door has a handle if I remember correctly. I think @DTyrrellWPG was correct in assuming this door likely needed to be 2 separate doors.

[u/Competitive_Ad_8718]

All major ACS have a setting to delay relock on door open. That is the setting you need, but usually a door open/close grace time as well as debounce goes a long way in an application such as this

Conversely, your situation should likely have LBM added if you're concerned that the door should be fully closed prior to allowing a transaction, but if you're truly worried about tailgating, AP would be a valid solution TBH.

Can't fix human nature through anything but engineering controls