On 10/23/2012 12:31 AM, Tothwolf wrote:
If these adapters sound useful at all I can see about
taking some photos
and a work up the pinout. I just really can't see me ever using ~350 of
these things :)
I recognize these and even recall an office suite that we used (around
1985) being wired this way. The idea is that you had the same installer
wire your phone system to the KSU, and give you a punch-down block in
the closet to wire your terminals. So basically, you attached the
adapters to your PeeCees or terminals and connected them to pairs in the
cable (usually 50-conductor) that also carried your phone traffic using
more-or-less standard modular cords.
Radio Shack, believe it or not, used to sell DB25F versions of these
with a 4-conductor modular connector in the connector hood. I still
have a couple.
--Chuck