FDDI Single Ring Adapter (Type 2-6)

8ef4m.xx.xx
Crossover Cable
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...

? FDDI xcvr
P2 Connector to DAS
U4 AM79C81AGC/10
U5 AM79C82AGC
U? 17x MT5C2564DJ-35
U14 MCA Bus Interface [81F8516ESD?]
U15 AM79C83GC
U? AM7984AJC/20 (under heatsink?)
U51 AM7985AJC/10
U28 81F8988
U22 81F8987
U31 Blue 91F1059
U37 75.0000 MHz osc
U? PLCC68 33G5456 / D12063FN

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...

AM7984AJC FDDI Encoder Decoder (ENDEC)
AM7985AJC FDDI ENDEC Data Separator (EDS)
AM79C81AGC CMOS RAM Buffer Controller (RBC)
AM79C82AGC Data Path Controller (DPC)
AM79C83GC FORMAC (AM79C830 FORMAC Plus)

Content created and/or collected by:
Louis Ohland, Peter Wendt, David Beem, William Walsh, Tatsuo Sunagawa, Jim Shorney, Tim Clarke, Kevin Bowling, Tomáš Slavotínek, and many others.

Ardent Tool of Capitalism - MAD Edition! is maintained by Tomáš Slavotínek.
Last update: 25 Nov 2022 - Changelog | Legal Info & Contact