13 Aug
2012
13 Aug
'12
10:56 p.m.
On Mon, 13 Aug 2012, Tony Duell wrote:
99% of the people who wanted a DE-9 adapter wanted a way to use a PC as a
terminal/console for a system that had a MMJ connector. A lot of people
were using laptops. Soldered adapters wouldn't have been of any benefit to
those types of end-users since they needed adapters for that one specific
application.
Even with crimped pins, it isn't hard to change an adapter if you need to
later, so long as you have an insertion-extraction tool for the pins.
Using solder-type DE-9 connectors would have been more expensive and far
more time consuming to assemble, especially in any sort of volume.
People asked
me if I could make cables that could be used with 6P6C to
DE-9 or DB-25 rewirable adapters. I later had enough demand for them
that I began pre-wiring 6P6C DE-9 adapters as H8751-J work-alike
adapters and pairing them up with a cable.
The great advnatage of soldering the wires to the D connecotr is that
it's a lot easier to change them. RS232 seiral interaces and the simular
thing on a DE9 connecotr fornd on soem PCs, are notorious for not doing
what you alwauys expect :-) I have foudn that if you supply only the 'hard to
make' part (in this
case criming the MMJ) and let the user do the rest you may well sell a
lot fewer cables, but those you sell go to the clueful. Who are not
going to complain that the DB25 version of the cable together with a PC
printer head didn't let thenm print on their deskjet or whatever.
I didn't have any complains with the cables I made but if someone had
asked I could have made up a modular cable with only one end terminated.