Wrap Plug 92F9003
FDDI Single Ring Adapter 81F8981 ?
Kevin Bowling sendt me some feelthy-feely pics of the 2-6.
2R looks OEM-ish, 2-6 screams heavy-handed IBM...
The DIP in the lower left corner is P/N 31G9394, the white sticker to lower left of the blue chip says 31G9393.
Some chips may be off a little. Blame Kevin, not me...
AM79C81AGC CMOS RAM Buffer Controller (RBC)
AM79C82AGC Data Path Controller (DPC)
AM79C83GC FORMAC Plus
AM7984AJC FDDI Encoder Decoder (ENDEC)
AM7985AJC FDDI ENDEC Data Separator (EDS)