There are commercial solutions availabe, ready to use.
But I would like to know which pins are used on the
IPAQ 3900 side for a two wire communication with the GPS
and which pins are used for the +5V power supply.

The IPAQ connector has some 22 pins and I guess that for
power pins 19 gets +5V and pin 21 gets ground.

A standard serial cable may connect pins 6,7,8,9,10,11,12,13,14,
whereas the USB cable connects to what? Is it pin 17 and 22 or
some of the serial pins?

Can someone explain the pin usage for a 4 wire power/com cable
on the IPAq side?

Thanks a lot
Michael

Here goes

1 Power V_ADP + 5 Volt
2 Power V_ADP +
3 Power V_ADP +
4 Power V_ADP +
5 Reserved - Do not use
6 RS232 DCD
7 RS232 RXD For GPS
8 RS232 TXD For GPS
9 RS232 DTR
10 GND Ground Negative side for your 5 volt -
11 RS232 DSR
12 RS232 RTS
13 RS232 CTS
14 DS232 RING
15 GND Ground
16 No Connect - Do Not Use
17 USB Detect
18 No Connect - Do Not Use
19 USB - UDC +
20 No Connect - Do Not Use
21 USB - UDC -
22 Ground

Note: Pin out- 22 Pin Cradle Connector IPAQ Side

Notched Side will be the even numbers


Gary



(Michael) wrote in message >...
> There are commercial solutions availabe, ready to use.
> But I would like to know which pins are used on the
> IPAQ 3900 side for a two wire communication with the GPS
> and which pins are used for the +5V power supply.
>
> The IPAQ connector has some 22 pins and I guess that for
> power pins 19 gets +5V and pin 21 gets ground.
>
> A standard serial cable may connect pins 6,7,8,9,10,11,12,13,14,
> whereas the USB cable connects to what? Is it pin 17 and 22 or
> some of the serial pins?
>
> Can someone explain the pin usage for a 4 wire power/com cable
> on the IPAq side?
>
> Thanks a lot
> Michael

The 22 pin connector that fits into the iPaq 3900 series uses the following
pins for a connection to a NMEA serial port:
pins 1,2,3,4 = 5Volt
pins 10,15,22 = common
pin 7 = RD (input to iPaq)
pin 8 = TD (output from iPaq)

When using a DB9 male connector for the serial port connection use the
following pins on this connector:
pin 2 = data in (to iPaq)
pin 3 = data out (from iPaq, but normally not used)
pin 5 = common
pin 8 = +5Volt

Good luck,

Karel, NL

"Michael" > schreef in bericht
om...
> There are commercial solutions availabe, ready to use.
> But I would like to know which pins are used on the
> IPAQ 3900 side for a two wire communication with the GPS
> and which pins are used for the +5V power supply.
>
> The IPAQ connector has some 22 pins and I guess that for
> power pins 19 gets +5V and pin 21 gets ground.
>
> A standard serial cable may connect pins 6,7,8,9,10,11,12,13,14,
> whereas the USB cable connects to what? Is it pin 17 and 22 or
> some of the serial pins?
>
> Can someone explain the pin usage for a 4 wire power/com cable
> on the IPAq side?
>
> Thanks a lot
> Michael

Hi,

Wonder if you can help. I'm looking at a plug for the
3900 series Ipaq and it has 4 rows of staggered pins
for soldering to. Does anyone know the pin numbering
sequence for the plug, thanks in advance

John

At 23:12 22 February 2004, K.P. Termaat wrote:
>
>The 22 pin connector that fits into the iPaq 3900 series
>uses the following
>pins for a connection to a NMEA serial port:
>pins 1,2,3,4 = 5Volt
>pins 10,15,22 = common
>pin 7 = RD (input to iPaq)
>pin 8 = TD (output from iPaq)
>
>When using a DB9 male connector for the serial port
>connection use the
>following pins on this connector:
>pin 2 = data in (to iPaq)
>pin 3 = data out (from iPaq, but normally not used)
>pin 5 = common
>pin 8 = +5Volt
>

Try www.internationalsoaring.org/Pinouts.html

Ian

Thanks Ian, unfortunately, you plug is a bit different
to mine. Yours has 5 pins in the top then two rows
of 6 then one of 5.

Mine has 6 pins in the top row then two rows of 5 and
a last row of six.

Has anyone managed to get one of these cables working
with a 5450 Ipaq ?

All help appreciated.

or you might try
http://www.kolumbus.fi/ari.torpstrom/pinouts_.htm nice pictures of the pins

Gunnar

Same picture but the connector for the 3900 that he has is different. I am
trying to get a matching photo to the one he has

Ian

Thanks for your help with the pinouts, I have to admit
that I got my pin count wrong and have been trying
to use 12 (RTS) instead of 7. Found out by plucking
pins out of a plug until I was sure.

My plug is numbered like this

1 5 9 13 17 21
3 7 11 15 19
4 8 12 16 20
2 6 10 14 18 22

Hope the formatting is retained.

John

I have plugs by 2 different manufacturers and neither of them has 4 rows of
pins!

Ian

"John Ferguson" o.uk>
wrote in message ...
> Thanks for your help with the pinouts, I have to admit
> that I got my pin count wrong and have been trying
> to use 12 (RTS) instead of 7. Found out by plucking
> pins out of a plug until I was sure.
>
> My plug is numbered like this
>
> 1 5 9 13 17 21
> 3 7 11 15 19
> 4 8 12 16 20
> 2 6 10 14 18 22
>
> Hope the formatting is retained.
>
> John
>
>
>
>