--- David Woyciesjes <DAW_at_yalepress3.unipress.yale.edu> wrote:
> I have here a terminator of some sort. It's a male 37 pin (DE37?),
DC37, IIRC. The second letter refers to the physical size of the shell.
D connector designators and common uses:
o DE9 - common mouse, AT-serial connector
o DA15 - Mac video, Ethernet AUI
o DB25 - Mac SCSI, RS-232 serial
o DC37 - Xebec? SCSI, IBM PC (5150) external floppy interface
o DD50 - Sun old-style SCSI (Sun3-era), DEC external TU80 cables
AFAIK, all of these have high-density cousins - same shell size, more
pins (i.e., DE15, sometimes called DE15HD, for VGA monitors/adapters).
Hope this is simple enough to avoid confusion. By posting this here,
of course, I subject myself to public humilation at the slightest
mistake. :-)
> the hood is black plastic, no identifying marks on it. Only " CONTACT
> 11.2964 075 " on the metal shroud that surrounds the pins.
No idea.
> Inside is one of those orange circuit sheets, with an blue rectangle
> chip on it. The chip is marked...
> 14-3-
> 221/331
> *B 8418
It's a 220/330 Ohm terminator.
> ... there is 106027 on the end of the sheet, with REV. B on the side. The
> logo on the sheet looks like a stylized MB. Here's what the pinout is...
> Chip - Connector
> 1 - 21
> 2 - 20...
> Any ideas what it is, and what its for? Anyone?
Nope. I've seen these connectors used for SCSI, for floppy, for
printers (DEC DMF-32 - for the line printer output) and probably
a few other uses. Hopefully the resistors and/or the pinout will
trigger some recognition in someone. If it really is a DEC device,
it might be worth checking as a diagnostic loopback connector for
a DMF-32. I know the pinout for that is in the docs for the 11/730-Z,
since they typically shipped with one.
-ethan
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Received on Tue Jun 04 2002 - 12:40:13 BST