From: "Herbert Graf"
> For example: if you use an RJ11 connector you have to be prepared for
> people to plug your device into a phone line (can your device handle 100
> + volts AC?)

What I like about the RJ11 idea is:
1) small size
2) cable easily available (if not a direct one, then a standard serial cable
with an RJ11-DB9 adapter
What I don't like about the RJ11 for my application is:
1) Agreeing with you, the capability of plugging the device to non-intended
sources, and no, I guess my device would explode if plugged to 100v ac :-)
2) Not too small size for my enjoyment
3) Somehow I don't think RJ11 has a "snug" fit. I think it is fragile and it
will break with time, but that's only my impression.

The device is a GPS receiver and I want to provide a PC communication link.
One idea would be using what is already on the market, for example the
Garmin eSeries cable, but I cannot find the female connector to include into
my device.

I have a voice recorder in my hands right now. It connects to the PC using a
USB connection instead serial cable. On one end of the cable, there is a
regular USB male connector, but on the other end, there is a very small
(USB?) connector. That connector size would be perfect for my application.
Can I use a USB miniature connector (4 pins?) in a custom cable to carry
serial data? Is that a good idea?

Another idea would be using another type of small connector (DIN-8?) and
provide a custom cable, but I still don't know what are the costs involved
with custom cables.

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