26 Oct
2012
26 Oct
'12
12:16 a.m.
On Thu, Oct 25, 2012 at 7:41 PM, Pete Turnbull
<pete at dunnington.plus.com> wrote:
> On 25/10/2012 22:45, Tothwolf wrote:
>
>> Are any of those other pinouts "standard"? I've found the material
in
>> several of these Wikipedia articles to be very incomplete.
>
> Well, for certain values of "standard", perhaps.
We used to use them, at a couple of places I worked. There never
seemed to be a consistent pinout between even our own customer sites..
One particular scheme "evolved" due to the structured cabling being
shared between telephone and serial terminals - the serial stuff was
put on pairs not used by the phones, so as to reduce problems caused
by users plugging things into the wrong socket...
Rob