EduQuest TR Adapter
Based on content by William R. Walsh (original HERE). Modified by Major Tom.
EduQuest TR Adapter FRU P/N 6263325, P/N 6263326
This is a proprietary "inverted" ISA adapter designed specifically for the EduQuest line.
P1 3-pin jumper (rearmost pins jumped)
S1 DIP switchblock
U11,12 TC55329J-35 32Kx9 SRAM
U? 6263329 µcode + RPL? ROM
Y1 32.0000 MHz osc
Jumpers/Switches Not a clue,
but I'd suspect they are similar to or the same as the ISA TR adapters.
I should find out if this adapter supports RPL. It probably does...
seems that booting from a centralized server was pretty common in the
educational market so as to cut costs.
Looks just like an ISA version of the oh-so-common 16/4 adapter for
MCA machines. Anyone ever seen the Ethernet adapter?
The original device is Toshiba TC57H1024AD-85 (U?, not marked visibly).
6263329 - © IBM CORP. 1991, 1993