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XPR 6550 USB cable schematics

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greywolf
Posts: 52
Joined: Fri Oct 12, 2001 4:00 pm

XPR 6550 USB cable schematics

Postby greywolf » Tue Dec 20, 2016 12:04 pm

Looking for schematics or cable pinout to build a usb cable for a XPR 6550

Done a little web searching but my resources (knowledge) are limited

n3obl
Posts: 602
Joined: Tue Mar 26, 2002 4:00 pm

Re: XPR 6550 USB cable schematics

Postby n3obl » Fri Dec 23, 2016 1:05 am

they can be had oem for 40-60 dollars. Kinda cheap to using a homemade cable.

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greywolf
Posts: 52
Joined: Fri Oct 12, 2001 4:00 pm

Re: XPR 6550 USB cable schematics

Postby greywolf » Mon Dec 26, 2016 7:09 am

n3obl wrote:they can be had oem for 40-60 dollars. Kinda cheap to using a homemade cable.


yes, wanted to give it a try but I understand the risks of bricking the radio. so far no luck with homemade usb cable.
think I have the wrong pinouts.

n1gtl
Posts: 91
Joined: Tue Mar 25, 2008 12:43 pm
What radios do you own?: XPR5550, XPR7550e

Re: XPR 6550 USB cable schematics

Postby n1gtl » Tue Dec 27, 2016 9:15 am


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greywolf
Posts: 52
Joined: Fri Oct 12, 2001 4:00 pm

Re: XPR 6550 USB cable schematics

Postby greywolf » Tue Dec 27, 2016 7:17 pm



could be.....I am going straight through, figured a chip was needed somewhere


thanks!!

n1gtl
Posts: 91
Joined: Tue Mar 25, 2008 12:43 pm
What radios do you own?: XPR5550, XPR7550e

Re: XPR 6550 USB cable schematics

Postby n1gtl » Wed Dec 28, 2016 8:09 am

From page 3-4 of the detailed service manual:

USB:
Pin 1 - VCC (5V) to PIN 3 on radio connector
Pin 2 - DATA - to PIN 5 on radio connector
PIN 3 - DATA + to PIN 4 on radio connector
Pin 4 - GROUND to PIN 1 on radio connector

Looking at the connector cable (NOT the radio), pin 1 is the upper most left pin. The numbering goes down the left side in odd numbers... 1,3,5,7,9,11
The upper most right pin is pin 2 and they go down the right side 2,4,6,8,10,12

User avatar
greywolf
Posts: 52
Joined: Fri Oct 12, 2001 4:00 pm

Re: XPR 6550 USB cable schematics

Postby greywolf » Fri Dec 30, 2016 7:05 am

n1gtl wrote:From page 3-4 of the detailed service manual:

USB:
Pin 1 - VCC (5V) to PIN 3 on radio connector
Pin 2 - DATA - to PIN 5 on radio connector
PIN 3 - DATA + to PIN 4 on radio connector
Pin 4 - GROUND to PIN 1 on radio connector

Looking at the connector cable (NOT the radio), pin 1 is the upper most left pin. The numbering goes down the left side in odd numbers... 1,3,5,7,9,11
The upper most right pin is pin 2 and they go down the right side 2,4,6,8,10,12


perfect, cable all setup as in pinout from service manual. windows fails to load usb driver. need DS2433 chip in the line I'm thinking....
will keep tinkering

User avatar
jackhackett
Posts: 1402
Joined: Tue Jun 10, 2003 8:52 am

Re: XPR 6550 USB cable schematics

Postby jackhackett » Fri Dec 30, 2016 3:21 pm

The DS2433 is a 1-Wire EEPROM. It contains a unique ID used to identify whatever device it's built into and possibly some software, so even of you get one it may not work.

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greywolf
Posts: 52
Joined: Fri Oct 12, 2001 4:00 pm

Re: XPR 6550 USB cable schematics

Postby greywolf » Fri Dec 30, 2016 6:13 pm

jackhackett wrote:The DS2433 is a 1-Wire EEPROM. It contains a unique ID used to identify whatever device it's built into and possibly some software, so even of you get one it may not work.


Okay, thank you. possibly rule out the DS2433 chip.
will focus on the windows driver


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