PowerConnect 3448P PoE Mode A or Mode B

Could you please tell me the electrical wiring for the PoE ports on the PowerConnect 3448P?  I am trying to connect a Ubiquiti Unifi Cloud Key to the PowerConnect and it fails to negotiate power.  The Ubiquiti device is Mode B.  That is, it uses pins 4,5 and 7,8 for PoE power.

So, I need to know if the PowerConnect is electrically Mode A (1,2 & 3,6) or Mode B (4,5 & 7,8).  

Thank you.