Prosistel PST641 D mini usb port doesn't work

[EA5WA]

I'm trying to help a friend with a new remoterig installation. Everything is fine, except rotator control.

Prosistel PST641D comes with a mini USB conection por control. Connected with a serial-usb converter to COM-1 on remote side doesn't work.

COM1 on both sides are configured as Mode 3.

Is there anyobdy here using that rotator with remoterig?

We need some help

73's from EA5WA Juan Carlos

[dj0qn]

Hi Juan Carlos,

A USB converter will never work. You can only connect a real serial cable to an RRC.

73,
Mitch DJ0QN / K7DX

[EA5WA]

Thanks Mitch:

Problem here is that Prosistel Control comes with USB interface.

I'm looking for how to have RS-232 port on prosistel control and don't find anything....

73's

[dj0qn]

Sorry, Juan Carlos, but I guess you need to change the controller. I used to have the Prosistel
controller with RS-232 and it worked great.

73,
Mitch DJ0QN / K7DX

[EA5WA]

Could you explain me how was it connected? Using COM1? Using a null modem cable on radio side?

Thanks Mitch

73's EA5WA Juan Carlos

[dj0qn]

I could have used RRC COM1, but I used a Webswitch and also Lantronix serial server. Both use
straight serial cables.

73,
Mitch DJ0QN / K7DX

[EA5WA]

Many Thanks Mitch

[sm2o]

Hi

it's quite easy to convert a USB Prosistel to RS232. 15 minutes of work

1. Replace the USB connector which eg is a USB to TTL converter with a 9 pin female D-sub- same pinning

2. Put a MAX232 in the empty socket on the main PCB

2. Remove the main PCB and cut the two jumpers  under the socket you put the MAX-232 in

73 de mike

[EA5WA]

Many thanks Mike:

I'll try to do it

73's EA5WA Juan Carlos

[ea5zj]

Helo Mike.

I am the friend that EA5WA is helping.
I have the rotor open command, and I suppose it must be the integrated or socket that you comment. Upload photo. It is accessible, yes. It is easy to place max 232, but I can't find in google bridges that I should cut on the board. Would you provide this information please? I use google translator and it is never perfect.

To change usb in the remote, I understand I need that or similar?

https://www.amazon.com/-/es/MAX232-RS232-Conversor-adaptador-Junta-M%C3%B3dulo/dp/B011NOHC4S/ref=sr_1_3?__mk_es_US=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=rs232+max232&qid=1601619719&sr=8-3
is ok?


https://www.amazon.com/-/es/FlashTree-Breakout-Converter-Transistor-Compatibilidad/dp/B07TYX3V4J/ref=sr_1_1?__mk_es_US=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=ttl+db9&qid=1601619274&sr=8-1

Or maybe I just need chassis connector? easy.


It seems strange to me the part that comes from origin, or manufactures, that indicates rs232 to usb converter, so we thought that we only had to change the connector and easy. But no.
And photo.

Thanks in advance for your great help.

Jorgs EA5ZJ

[sm2o]

Hi

you only need a connector like this

https://www.mouser.se/ProductDetail/CONEC/164A16569X?qs=1A3x81zjaSym3KfjHmcMRA%3D%3D

and the MAX232

https://www.mouser.se/ProductDetail/Maxim-Integrated/MAX232CPE%2b?qs=1THa7WoU59H6WLBcdj%252BTOQ%3D%3D

the wires which need to be cut is on the back of the PCB under the empty socket

I will try to get a picture from an other ham i helped

73 de mike

[ea5zj]

This is the photo that I can get with a flashlight on the part of the screen.

[sm2o]

yes it's the two wires which is solder beween the pins of the socket which need to be cut

if you can take a new picture with correct colors it would be good to have to instruct others

73 de mike

[ea5zj]

Off course,  but no colour.

[ea5zj]

Another.