From: cac@iear.arts.rpi.edu (Christopher A. Cox)
Subject: Mystery board...please identify...
Organization: Rensselaer Polytechnic Institute, Troy, NY
Distribution: usa
Date: Mon, 28 Sep 1992 03:18:43 GMT

	Well, I have come upon this mystery board, and although it's
probably not Sun equipment perhaps someone here can tell me what it is.
Following is a description and a diagram.
	This thing is a board about the size - actually, exactly the
size - of a Sun 2/50 SCSI controller or floating point board.  It has on
it a 25MHz MC68030 and 68882, both socketed for easy removal.  It also
has 8Mb of 80ns DRAMs on it, soldered at right angles like SIPPs.  There
is a reset button (nothing else it could be), what appeasr to be two
serial ports (two DB25 femail connectors), a bank of dipswitches, and a
socket that looks like a stretch of ribbon cable might come out of it
and maybe head for a keyboard and mouse someplace.
	This thing is obviously someone's CPU board.  It has two VME
style connectors on it.  There is no evidence of any on board SCSI
control, so I doin't think it's a high end Sun 3 CPU board of any
kind...but I could be wrong.  I think it may be some kind of evaluation
board.  The only markings are as follows:

On the edge:  CARTE VMTV2B   IND D FACE COMPOSANT 8/8 2289
Sticker in the middle:  V2B-D-25MHz
			8MO 1 0246
Sticker on one VME connector:  CETIA IF 3.1.4, and to its left a sticker
with a logo that says CHIA REV ...and then letters a-j with a-f crossed
out.
Sticker on the other connector:  CETIA S/N (and a serial number, of
course)
A whole bunch of PALs and other chips have labels all starting with
"V2B."
On the underside of a VME connnector:  VMTV2B D 25 08 C2, and a sticker
with a bar code and the words "GTE WARRANTY."

	So, anyone know what this is?  Anyone want it?  If I can't find
out what it is or I do and find I don't care (like if it's not something
I can build a neat machine around easily) I'll be willing to take offers
based on the value of the '030 and '882.  

						Chris

Following is a diagram:


    ________________________                ________________________
   |         "CETIA IF 3.1.4|              |                        |
|--|________________________|--------------|________________________|--|
|        VME type connector                     VME type connector     |
|                           |SCB68172C2N28|                            |
|                           |SCB68155CAN40|                            |
|                                               Various 74LS series    |
|                           |SCB68154C2N40|     gates and such...      |
|  memory (8Mb)                                 Various PALs,          |
|L -----------------------                      all labelled           |
|A -----------------------                      "V2B/????"             |
|B -----------------------                                             |
|E -----------------------                                             |
|L -----------------------       _________     _______                 |
|  -----------------------      | 25MHz   |   |25MHz  |                |
|  -----------------------      | 68030   |   |68882  |                |
|  -----------------------      |         |   |_______|          50MHz |
|     | MC68681 (MMU?)|         |_________|                     crystal|
|  ____________  dipswitch  ________________    ______________         |
| |____________|   bank     |              |    |            |         |
---------------------------|________________|--|______________|---||----
   ^plug for ribbon cable?     serial port        serial port    reset?

-- 
---------- If you cut here you'd probably ruin your monitor -------------
cac@iear.arts.rpi.edu			               Christopher A. Cox
cac@itchy.geog.albany.edu			       I think, therefore
cc8034@eve.albany.edu				              am confused.