The MPO/MTP connectors and adapters, if they meet the interoperability standards, will work together with a
couple of caveats.
- 12 and 24 fiber MM MTP or MTP Connectors will mate, but will not function due to 1 centered row of 12 in the 12f and 2 rows of 12 above and below center in the 24f.
- SM MTP connectors are always APC (Angled Physical Contact) with an 8 degree angle to the horizontal plane of the
connector. You can mate an APC with a PC however the IL will be huge due
to the air gap caused by the different ferrule angles (flat/0 degrees vs. angled/8 degrees) not to mention the fiber type change (from SM to MM). You must always use a key-up to key-down adapter when mating SM MTP or MPO connectors as they are APC.
As to what the performance (dB loss) of mating MPO to MTP connectors will depend on the manufacturing specifications, tolerances, and quality of the connectors.