why don't you just look at the D_Sub connectors. Pins and sockets are
consistently numbered. I do see these numbers even on the J5 interface
connector of my RFTG-1. If needed take a magnifying glass.
Götz
Am 08.11.2014 16:56, :
Even though Bob says it I also screwed up the 15 pin mini.
To be very clear
Viewed from the chassis front.
Male plugs pin 1 left side
Female plugs pin 1 right side
But that said the systems running fine now by simply doing the pin 2 and 3
approach.
Next things. Battery backup to the GPS unit then RS422 and communications.
My unit took a solid 2.5 hours to lock etc. But I was not on the good
antenna. Instead an inside unit on the bench. Far from optimum. I just did
not want to screw with the antenna connector and the L + 220 ohm R to fake
out the GPS unit.
Thanks for the help every one.
Regards
Paul
WB8TSL
On Fri, Nov 7, 2014 at 9:14 PM, Bob Camp <[email protected]> wrote:
Hi
The reason it was listed as #1 on the list is that I made the backwards
numbering mistake when I was trying to work out the resistances on the
interface connector. I’ve been doing this for > 40 years and I still mess
it up on a regular basis. We also seem to get it wrong from time to time
when we lay out connector connections on pc boards, but that’s another
story altogether …..
Bob
On Nov 7, 2014, at 9:09 PM, Alan Hochhalter <[email protected]> wrote:
I got in a hurry and made mistake #1 listed by Bob a few replies back. I
hooked one up to the RS422/1PPI port transmit pins (same as on J8) and
was
receiving data fine in the PC so I just hooked up the other pair of
terminals to the receive pins for J8 and couldn't get any response to
commands.
I finally found that I had initially connected the Lucent box ouput pins
to
the wrong terminals on the converter. The Time code data on J6 was still
getting into the PC even though it was connected wrong. So I just wired
the Lucent box input pins to the other pins on the converter that are
really inputs and couldn't get J8 sto work either.
What I ended up with to make it work is: J8-9 to RX-, J8-5 to RX+, J8-8
to
TX- and T8-4 to TX+.
Alan
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