On Sat, 11 Jul 2009 15:27:05 +0100, Dave Plowman (News) wrote:

It's for the serial port on a PC. According to the blurb with the device
I'm connecting to it pins 1&9 have 5 volts DC on them to power things
like Bluetooth.

RS232 DB9 pin 1 is Carrier Detect and pin 9 Ring Indicator so this
port is non-standard. I assume this non-standard port is on the bit
of kit you want to connect to the PC and it just has the abilty to
power a Bluetooth device if required.

--
Cheers
Dave.