Ring Elite POE Mode A or B?

Setting up an Elite for a customer and we only have an 18 gauge 2 conductor at the door. We want to use the wire for power only and use wifi for the connection, but we need to know the POE mode the unit uses. We called tech support and they sent us this when we asked for the pin outs, but that didn't tell us which one they used. If someone knows, we would be super grateful.