See 'WikiDevi' @ the Internet Archive (MW XML, Files, Images)
upgraded MW to 1.30 - maybe things are slightly less broken
D-Link DWL-8620APE rev A1
Wireless AC2600 Wave2 4X4 MU-MIMO Dual Band Unified Access Point with External Antennas
- Product page (D-Link Middle East & Africa)
Most useful FCC documents are under short-term confidentiality until 03/13/2019.
The D-Link DWL-8620AP rev A1 is internally identical but has internal antennas. This device was mentioned in FCC documents for that model before getting its own FCC ID.