the Cable supplied by LX Navigation has connection between the LX20 and
Iapq.....just plug in....the cable also has a set of power leads to your
supply power....the LX20 cable set also has a set of power leads for your
power supply (battery).....connect the LX Cable between the PDA and to
LX20......then connect both sets of power leads to your power supply
(Battery) and that should be all you need......if you have the LXPDA Cable
set (which also converts the 12VDC to 5VDC for the PDA......if you don't
have this cabl;e set call me.I ahve them here
thanks
tim
Wings & Wheels
www.wingsandwheels.com

"Bruce" wrote in message
...
Hello all

I am trying to connect my LX20 to my iPaq.
LX20 is older model (Pre 2000)
iPaq is 3850

I have the original cradle and cables from LX Navigation that is designed
to connect ot a PC seiral port. This meand the cable has a DB9 female
connector both ends.

So I invested in a LX NAvigation "IPAQ Interface" which consists of a pair
of input power lines for 8-24V and a iPaq connector, and a little power
regulator / IC block with a female DB9 connector on it.

When I asked if the unit supplied power to the LX20 the answer was "OK
then I supply [other stuff] and the LX to iPAQ 30xx adapter and you sort
the power supply? Should be possible to take power from the iPAQ adapter
with a simple splitter. "

Now I am an IT type, but this beats me.

Has anyone done this before? Do I need to open the heat shrink on the IPAQ
Interface and wire one of the pins with +12V and the case with -12V.

The standard cradle has certain of the pins shorted out to swiths the unit
on whenever it is in the cradle, and an external button wired for "event
mark", which you can do from the keypad, and a third pin powering an LED
to indicate each NMEA sentence written.

Not sure where to start. I have the pin out on the cradle...

--
Bruce Greeff
Std Cirrus #57
I'm no-T at the address above.