| If anyone can confirm suitable uses for each pin it would be most
| appreciated.
| So far we have noted:
|
| Pin 1
| Pin 2 used for serial data out (to iPaq) by CAI-302
| Pin 3 used for serial data in (from iPaq) by CAI-302
| Pin 4
| Pin 5 used for data and power ground by CAI-302
| Pin 6
| Pin 7 used for +12v (to GPS) by Goddard Power Supplies
| Pin 8 used for +5v (to iPaq) by CAI-302
| Pin 9
|
| I would hate to cause a problem by choosing to send too many volts
| to the wrong part of a gadget!

Answering my own query here . . .
Seems that up to 25v is acceptable on all pins so our +5v and +12v
probably should not cause any problems.
Here is a handy web page for anyone else following along:
http://www.proav.de/index.html?http&...S232-port.html
and no shortage of others that back up this info.

Also noted that the small Garmins that use the "Eplug" (Summit,
Legend, Vista, etc) run on 2.5v . . . but then I guess their tiny
screens don't lend themselves to panel mounting. Still, some folks
already have them . . perhaps that is what pin 9 is there for??
Their specs claim 12hrs per pair of batteries so perhaps they do not
need to share the glider's power?

Cheers,

Jim Kelly.