Safe to power PTP650 with PIDU plus from PTP 400?

We have an existing link using PTP 400 radios that would like to upgrade to PTP 650 radios. Can the existing PIDU plus unit be used to power the new radios?

No, the PTP 400 PIDU+ uses a different pinout and is not compatible with the PTP 650 AC+DC Power Injector.



Such a buzzkill :)

Guess it's better than letting the magic smoke out though. Thanks.