ZyWall USG 50 Powersupply polarity?

Marco123456789

Hi all

I have a ZyWALL USG 50, but no matching powersupply for it.
The specs state 12VDC 1.5A, but no info about the polarity of the barrell-plug.
Could someone please tell me which polarity the powersupply has? center-positive or center-negative.
If you happen to have such a powersupply I would appreciate very much if you could check what it says on the powersupply about polarity.

Thank you in advance!
Marco

gb5102

Center positive

mMontana

Even USG60, 40, 20 and 20-VPN had the same polarity. In my experience, a good quality & switching power supply beefier that the amperage requested by Zyxel device won't harm the device itself.