The issue with interfacing B500/600/800 to Oudie
has been resolved. The problem was not that the
Naviter website was wrong but the customer looked
up the net for the RJ connector numbering and the
electronics industry standard is the reverse of
the IGC format. This caused his confusion.
Thanks to Al and Naviter for taking an interest
and the B500/600/800 successfully transmit
settings and Air data to the Oudie which uses them. Nice system.
Be really careful when using these connectors
and cables to interface two pieces of equipment.
There is the electronics industry standard for
Ethernet for pins and numbering, the IGC one with
totally different pin assignments and reversed
numbering, Our B500/600/800 which uses
electronics industry numbering but different pin
assigments( we double up the pins for the 4 wires
we need) and the EW Microrecorder which uses yet
another set of pin assignments.
We will provide correct cable adapters for Oudie
and AVier PNAs making it all plug and play.
Here's what the customer came back with finally after getting it all going:
Mike,
This whole experience shows me the truth in the
saying: "The good Lord protects idiots and
fools" because it could have turned out very expensive for me!!
I took the pinouts from the following post on the
Oudie forum. I read right past the word "IGC"
and assumed that the pinouts were the "industry" standard RJ45.
RJ45 connector with standard IGC pinout where
pins 1 and 2 = +12V
pin 5 = Receive to Oudie
pin 6 = Transmit from Oudie
pins 7 and 8 = Ground
Use directly with these devices: Swiss Flarm, Volkslogger, K6 Mux, VW1150
The first time I connected the two instruments, I
had the Oudie 12V tied to the B500 ground and
promptly blew the 1 amp fuse for the Oudie power supply!!
I then replaced the Oudie fuse and started
checking the outputs on the Oudie power cable and discovered:
* What I thought were pins 1 & 2 (actual pins 7 & 8 per IGC) were ground,
* What I thought were pins 7 & 8 (pins 1 & 2 per IGC) were +12 volts,
* What I thought was pin 3 (pin 6 per IGC)
was transmitting from the Oudie.
I then went back to the interface that I had made
up to use a Garmin GPS rcvr with the Oudie some
time ago and discovered that what I thought was
pin 4 (pin 5 per IGC) was receiving the signal from the Garmin.
I then made up a cable that connects:
* Pins 1&2 from the B500 to IGC pins 7&8 on the Oudie; and,
* Pin 5 from the B500 to IGC pin 5 on the Oudie
and everything worked!!!
I also found that there is nothing special about
setting up the interface except selecting COM 4,
4800 Baud, and Borgelt B50/500 device from the list of devices.
As you can tell from the above I was not aware
that IGC reversed the pin numbering on the RF45 connector!!!
Again, thanks for your interest and help!!!
--------------------------------------
Mike
Borgelt Instruments - design & manufacture of
quality soaring instrumentation since 1978
www.borgeltinstruments.com
tel: 07 4635 5784 overseas: int+61-7-4635 5784
mob: 042835 5784 : int+61-42835 5784
P O Box 4607, Toowoomba East, QLD 4350, Australia
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