1 Dec
2012
1 Dec
'12
12:53 p.m.
>>>>> DE15F to DE9F
>>> THAT one is labelled "RS232C"!!!
> Considering that these cables probably came from an LCD projector, it is
> PROBABLY a monitor adapter of some sort.
On Sat, 1 Dec 2012, David Riley wrote:
My assumption, actually, is that it's a custom
peripheral
adaptor for the projector. The presence of ADB and PS/2
ports would make me guess that it's so you can attach a
mouse (some projectors used it for their config screens,
others let you control the host machine's cursor through
the remote, which would indicate the other direction).
The DE9 is probably for a serial mouse (which I recall
being pretty popular before PS/2 was ubiquitous).
Serial mice normally mated to a DE9M!
(suitable for connecting the projector to serial of host computer
for control of host computer, not for attaching mouse to projector)
But the ORIGINAL Microsoft "Bus Mouse" (green-eyed mouse with
it's own ISA card) mated to a DE9F on the mouse card. That,
of course, resulted in people plugging the mouse into CGA and MDA
and plugging the monitor into the mouse card. (YES, college
employees did that A LOT)
Because of the potential for hardware damage, the "bus mouse"
switched to a mini-DIN connector, and the mice that mate with
DE9F are R at RE, and long gone before this device.
But, we are opining over something inconsequential.
Pay postage, and YOU CAN HAVE IT!
(It is a molded (not moldy) cable, so pinout changes
for any other use are inconvenient.)
--
Grumpy Ol' Fred cisin at xenosoft.com