Help finding a serial cable (RS232)

[mpm]

Anyone know where I can find a supplier for pre-made RS232 serial
cables with a DB-9 Male on one end, and a 3.5mm plug on the other?

Or...? Doesn't have to be 3.5mm, that's just the first thing that
comes to mind.

I'm on a new project that will need a serial port and want to shave
cost of the DB9 on the product end. (Also, tooling would be a slight
hassle as the PacTec enclosure I'm going to use would have to hacked
up a bit, whereas panel mounting a 3.5mm jack is no big deal.)

Ideally, a 3-foot to maybe 5-foot pre-assembled RS-232 to 3.5mm (mini-
phono) type plug would fit the bill. I only need TXD, RXD and ground
(common). How it pins out on the plug is not critical as it will
likely be panel mount anyway - although I suspect there's a "standard"
here.

Even RS232 DB9 Male to bare wire would be considered and I'll make the
plugs myself.
Not my first choice, however. But acceptable in early production.

Thanks!!
-mpm

 

[Jamie]

Anyone know where I can find a supplier for pre-made RS232 serial
cables with a DB-9 Male on one end, and a 3.5mm plug on the other?

Or...? Doesn't have to be 3.5mm, that's just the first thing that
comes to mind.

I'm on a new project that will need a serial port and want to shave
cost of the DB9 on the product end. (Also, tooling would be a slight
hassle as the PacTec enclosure I'm going to use would have to hacked
up a bit, whereas panel mounting a 3.5mm jack is no big deal.)

Ideally, a 3-foot to maybe 5-foot pre-assembled RS-232 to 3.5mm (mini-
phono) type plug would fit the bill. I only need TXD, RXD and ground
(common). How it pins out on the plug is not critical as it will
likely be panel mount anyway - although I suspect there's a "standard"
here.

Even RS232 DB9 Male to bare wire would be considered and I'll make the
plugs myself.
Not my first choice, however. But acceptable in early production.

Thanks!!
-mpm

You would be better off getting a roll of wire and connectors..

Pricing for molded serial cables are all over the place.
http://www.connectworld.net/iss//molded-rs232-cables.html
check there.
They seem to have some good prices on cheap molded serial cables.

 

[mpm]

You would be better off getting a roll of wire and connectors..

� Pricing for molded serial cables are all over the place.http://www.connectworld.net/iss//molded-rs232-cables.html
check there.
� �They seem to have some good prices on cheap molded serial cables.

I've seen (3) products - at least!! that use the type of cable I'm
looking for:
An old Philips "Pronto" universal remote control, my dad's brand new
Bayer Ascenture blood glucose meter, and a Boxcar (sp?) data
acquisition gizmo that looked like a pager.

I have a contact who does the China import thing and I'm sure he'll
have it... I'm just not ready to buy a few thousand of 'em yet. Which
is where that usually leads... I tried the Google route but after
sifiting though a dozen or so sites I gave up. I think this is the
kind of thing you either know where to get it, or you're stuck. So
far, I'm stuck.

But thanks for the lead. If push comes to shove, I guess I can hack
off one end and wire it to a plug. At least half the work would be
done for me.....

 

[Bill Brown]

We buy our cables from PCH Cables in Oregon. (www.pch.com) They show a 6 ft
double ended DB9 male for $1.95 each, Qty 1. As someone's post suggested,
they could be cut in half and the 3.5 mm plug put on.

We have used this company for a couple years and have been very happy with
their price and fast delivery.

bill

 

[Eeyore]

Anyone know where I can find a supplier for pre-made RS232 serial
cables with a DB-9 Male on one end, and a 3.5mm plug on the other?

Don't even consider it.

3.5mm jacks are as noisy and simply generally unreliable as they come.

Graham

 

[budgie]

I've seen (3) products - at least!! that use the type of cable I'm
looking for:
An old Philips "Pronto" universal remote control, my dad's brand new
Bayer Ascenture blood glucose meter, and a Boxcar (sp?) data
acquisition gizmo that looked like a pager.

I have a contact who does the China import thing and I'm sure he'll
have it... I'm just not ready to buy a few thousand of 'em yet. Which
is where that usually leads... I tried the Google route but after
sifiting though a dozen or so sites I gave up. I think this is the
kind of thing you either know where to get it, or you're stuck. So
far, I'm stuck.

But thanks for the lead. If push comes to shove, I guess I can hack
off one end and wire it to a plug. At least half the work would be
done for me.....

Consider a male-male D lead, and hack it in half to apply the 3.5mm stereo
plugs. At least that reduces the waste (cost).

 

[mpm]

Consider a male-male D lead, and hack it in half to apply the 3.5mm stereo
plugs. �At least that reduces the waste (cost).- Hide quoted text -

- Show quoted text -

Now, there's some thinking! Thanks!
Still, I'd rather find the cable already made - and obviously they are.

 

[mpm]

Don't even consider it.

3.5mm jacks are as noisy and simply generally unreliable as they come.

Graham

That's a good point, but I can always spec a higher quality jack.
And supervise the data with XON/XOFF, retransmit, etc.. I'm not too
worried about handling data corruption. It's not a lot of data, and
can be slowed down if/as needed.

What connector would you use?

 

[Eeyore]

That's a good point, but I can always spec a higher quality jack.
And supervise the data with XON/XOFF, retransmit, etc.. I'm not too
worried about handling data corruption. It's not a lot of data, and
can be slowed down if/as needed.

What connector would you use?

Well, if you want cheap, a 1/4" 'phone' jack is vastly better than its smaller
cousin. I'd have no reservations there.

Graham

 

[JosephKK]

mpm [email protected] posted to sci.electronics.design:

That's a good point, but I can always spec a higher quality jack.
And supervise the data with XON/XOFF, retransmit, etc.. I'm not too
worried about handling data corruption. It's not a lot of data, and
can be slowed down if/as needed.

What connector would you use?

My cell phone has a 3 contact version of the 2.5 mm power plug. There
is a detent in the outer ring contact to help with reliable
connections.