J. David Bryan wrote:
  Digi-Key may have a complete replacement cable;
I'll have to look at my
 2108B on Monday when I get to work.  But, from memory, the cable has a 50
 pin IDC edge connector on one end and a four-row IDC "transition" connector
 on the other that's soldered into the board.  Part number C3PET-5006G-ND
 might be it.
 But you'd have to unsolder the 50-pin transition connector from the front
 panel PCB.  It'd be easier to cut off and replace the edge connector, I
 believe.
 The OEM part for the edge connector is 3M part number 3415-0001. 
The cable assembly was cheaper than the connector itself, though not the
factory gray. I ordered a C3PES-5006G-ND and put it in last night. Seems
to be working fine now. IBL now loads code into memory.
Thanx again!
I wish I had a full diagnostics virtual tape image to more fully check
out on all my systems.
--
Tim Riker - 
http://Rikers.org/ - TimR at 
Debian.org
Embedded Linux Technologist - 
http://eLinux.org/
BZFlag maintainer - 
http://BZFlag.org/ - for fun!