I know for APC stuff you need fairly current firmware to have solarwinds get all the correct OIDs and MIBs. Does Tripp have newer firmware?
The MIB does not have to present in the Orion MIB database to setup a custom poller. All that you need to know is the OID. And, it looks like MIB is availableon the tripp website. Once you create your custom pollers, please upload them to thwack content exchange