John,
Over here we'd just run down to the nearest Radio Shack store, or if we had
to mail-order them we'd go to Digikey (
www.digikey.com) or Mouser
www.mouser.com). Here is a link to a digikey catalog page that shows the
different types they carry:
http://dkc3.digikey.com/PDF/T061/0304.pdf
Also, here is a link to a Digikey search page from which you can narrow your
search down to a specific type and stock number:
http://www.digikey.com/scripts/DkSea...S&Cat=32440884
If you follow the above link to a specific connector, you'll eventually get
to a page that has the manufacturer's web sites and datasheet information.
This might help you at least pick a connector type, then go to the
manufacturer's web page and find out who stocks the part in your area.
Joe
W3JDR
"John Wilkinson" wrote in message
...
On Sun, 26 Mar 2006 21:19:01 GMT, W3JDR wrote:
The author said it was RS-485. This is a 2-wire differential signalling
system. He also wants to use a shield. Hence the need for 3 circuits. I
doubt that reflections will play any part in the performance, especially
considering that he's using twisted-pair for the signals. This is how
CAT5
RS-485 distribution works.
Besides, he's talking about a1 MHz presumably steady-state square-wave
clock
and presumably short board-to-board connection lengths.
Joe
W3JDR
"jack" wrote in message
...
Problem with a phono-plug and a clock signal is that you will get
reflection
back -- probably much better off with a BNC or SMA connector.
"W3JDR" wrote in message
news:NXhVf.9224$6%2.4606@trnddc08...
John,
How about a miniature stereo phono plug? These have 2 signal circuits
plus
a
ground. They're common, they're available in many PCB configurations,
and
they're cheap.
Joe
W3JDR
"John Wilkinson" wrote in message
news
Hi,
I have a 1MHz clock that I need to disribute to several boards. I am
using
RS485 drivers and receivers to do this, along with twisted screened
cable.
The question is that I need a 2 pole pcb connector that is screened.
Does anyone know of such a beast?
Thanks,
John.
HI,
Yes this is a differential signale, so needs 2 connections plus ground for
the shield.
I have looked for these stereo phono plugs, but to no avail, any idea who
stocks them, RS/Farnell numbers.
Thanks,
John.