Usb - Rs232 - Electronic Circuits Projects Diagrams Free

Kryten · 5th February 2008, 06:13 PM

Does anyone know how this is connected?
My adapeter has gone all coroded (dont ask me how)

I would like to just cut the cable and atache a new db9 plug

justDIY · 5th February 2008, 06:31 PM

all the magic is in the db9 plug, so if you cut it off, you're done.

the damn things are usually sealed in some sort of rubber too, making it very hard to service them. try your best to cut open the DB9 connector and then you can solder on a new usb cable.

Kryten · 5th February 2008, 06:35 PM

Well its the db9 plug thats shot. But ill give it a try. My has a plastic casing (solid of corse..) Ill also try to make a schematic to post here if others need to do similar things....
or if you want to make something that are meant to be RS232, to USB

justDIY · 5th February 2008, 06:51 PM

Well, if you can get it open, soldering on a new db9 shouldn't be a big deal. they usually just use a solder cup type which straddles the pcb, and solder it on both sides.

mvs sarma · 6th February 2008, 01:24 PM

I suggest, as anyway you need to rewire it, cut it 2" below and slightly open the cable and remove wires' insulation, perhaps you can buzz the wires and note down data.

It would be easy to rewire exactly on a fresh DB9.

Kryten · 6th February 2008, 02:05 PM

Yes the new DB9 is easy and its the part that i need to replace.
After opening the boks on the DB9 end i was a bit suprised to find that amount of electronics inside

So the resolder is really easy i can see

mvs sarma · 6th February 2008, 03:09 PM

Quote:

Originally Posted by Kryten

Yes the new DB9 is easy and its the part that i need to replace.
After opening the boks on the DB9 end i was a bit suprised to find that amount of electronics inside

So the resolder is really easy i can see

What exactly is this cable? i suppose it like PIC programming cable or 89s51 programming cable?

Kryten · 7th February 2008, 07:15 AM

Well i dont know what that look like but here is a couple of shoots I just took to show you all:

The first is th reason why I opend it and the other two are from inside the cable ENJOY

mvs sarma · 7th February 2008, 07:47 AM

Nice Job Kryten and thanks.

A lot of components. Perhaps now you can replace the DB9 male connector alone carefully and pack it back, and seal it with some superglue. If you have access to an hot-air gun, your job is simple.

I was anxious to know, what actually this cable does. what is at the other end? An USB? or RS232 with tx, Rx and common?

Thanks again

Kryten · 7th February 2008, 08:41 AM

Its a USB to RS232 cable (as my laptop dosent have any Serial ports)

mvs sarma · 7th February 2008, 09:35 AM

Quote:

Originally Posted by Kryten

Its a USB to RS232 cable (as my laptop dosent have any Serial ports)

I saw one simpler from www.sparkfun.com

Its double sided but uses only one chip FT232RL. PCB layout attached.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Latest
USB Power hack with DC/DC Converter - am I crazy?	chconnor	Electronic Projects Design/Ideas/Reviews	14	8th March 2008 09:12 PM
USB to RS232 driver	flemmard	Electronic Projects Design/Ideas/Reviews	1	6th October 2007 07:03 PM
RS232 Converter	e.chain	Micro Controllers	0	6th October 2007 06:19 PM
usb to RS232 serial port :	simrantogether	Electronic Projects Design/Ideas/Reviews	3	12th September 2007 12:04 PM
RS232 buffer	TDY	General Electronics Chat	3	18th March 2005 08:36 PM

5th February 2008, 06:13 PM	(permalink (permalink))
Kryten	Usb - Rs232 Does anyone know how this is connected? My adapeter has gone all coroded (dont ask me how) I would like to just cut the cable and atache a new db9 plug __________________ Simplicity rules Good enought - its perfect ?? 2 Gig of free online backup space Are you a Chemist?

5th February 2008, 06:31 PM	(permalink (permalink))
justDIY	all the magic is in the db9 plug, so if you cut it off, you're done. the damn things are usually sealed in some sort of rubber too, making it very hard to service them. try your best to cut open the DB9 connector and then you can solder on a new usb cable. __________________ If you don't have a planet, what good are gold bars? want to contact me directly? gmail gordonthree check out my project website: http://projects.dimension-x.net Favorite numbers: 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

5th February 2008, 06:35 PM	(permalink (permalink))
Kryten	Well its the db9 plug thats shot. But ill give it a try. My has a plastic casing (solid of corse..) Ill also try to make a schematic to post here if others need to do similar things.... or if you want to make something that are meant to be RS232, to USB __________________ Simplicity rules Good enought - its perfect ?? 2 Gig of free online backup space Are you a Chemist?

5th February 2008, 06:51 PM	(permalink (permalink))
justDIY	Well, if you can get it open, soldering on a new db9 shouldn't be a big deal. they usually just use a solder cup type which straddles the pcb, and solder it on both sides. __________________ If you don't have a planet, what good are gold bars? want to contact me directly? gmail gordonthree check out my project website: http://projects.dimension-x.net Favorite numbers: 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

6th February 2008, 01:24 PM	(permalink (permalink))
mvs sarma	I suggest, as anyway you need to rewire it, cut it 2" below and slightly open the cable and remove wires' insulation, perhaps you can buzz the wires and note down data. It would be easy to rewire exactly on a fresh DB9. __________________ Regards, Sarma.

6th February 2008, 02:05 PM	(permalink (permalink))
Kryten	Yes the new DB9 is easy and its the part that i need to replace. After opening the boks on the DB9 end i was a bit suprised to find that amount of electronics inside So the resolder is really easy i can see __________________ Simplicity rules Good enought - its perfect ?? 2 Gig of free online backup space Are you a Chemist?

7th February 2008, 07:47 AM	(permalink (permalink))
mvs sarma	Nice Job Kryten and thanks. A lot of components. Perhaps now you can replace the DB9 male connector alone carefully and pack it back, and seal it with some superglue. If you have access to an hot-air gun, your job is simple. I was anxious to know, what actually this cable does. what is at the other end? An USB? or RS232 with tx, Rx and common? Thanks again __________________ Regards, Sarma. Last edited by mvs sarma; 7th February 2008 at 07:56 AM.

7th February 2008, 08:41 AM	(permalink (permalink))
Kryten	Its a USB to RS232 cable (as my laptop dosent have any Serial ports) __________________ Simplicity rules Good enought - its perfect ?? 2 Gig of free online backup space Are you a Chemist?