RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog
 

Go Back   The RadioReference.com Forums > Scanners and Receivers Forums > Radio Shack Scanners

Radio Shack Scanners A forum for the discussion of all Radio Shack scanning radios and receivers.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 05-01-2009, 10:04 AM
KF5DCI's Avatar
Member
  Amateur Radio Operator
Amateur Radio
 
Join Date: Sep 2008
Location: Spring, TX
Posts: 398
Default RS 20-047 Cable Pinout

Does anyone know the pinout of the connectors on the Radio Shack programming cable (#20-047)? As in which parts of the ring/sleeve/tip are for rx/tx? Also is this cable basically a USB to RS232 to TTL device?
__________________
BCD996XT, ICOM ID-800H
Reply With Quote
Sponsored links
        
  #2 (permalink)  
Old 05-07-2009, 7:16 AM
Member
   
Join Date: Jul 2008
Location: West River South Dakota
Posts: 331
Default

Yes, the 20-047 is “basically a USB to RS232 to TTL device”. The main chip is an FTDI FT232BL that does the USB to RS232 part.

As to the stereo plug pinout, I am pretty sure that the Radio Shack/GRE version follows the same pinout that FTDI uses on their complete USB to TTL cables such as the TTL-232R-AJ shown below for full-duplex mode. For half-duplex, the tip serves for both tx and rx.
Attached Images
 

Last edited by Evert; 05-07-2009 at 8:26 AM..
Reply With Quote
  #3 (permalink)  
Old 05-07-2009, 10:31 AM
KF5DCI's Avatar
Member
  Amateur Radio Operator
Amateur Radio
 
Join Date: Sep 2008
Location: Spring, TX
Posts: 398
Default

Thanks for the response. I managed to figure it out but I will save the diagram for future reference.


I managed to get my Minitor V programmed using my RadioShack programmer!!
__________________
BCD996XT, ICOM ID-800H
Reply With Quote
  #4 (permalink)  
Old 11-14-2009, 11:19 AM
fourthhorseman's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Feb 2009
Location: Allways Sunny in Philadelphia
Posts: 1,167
Default

Evert..

You Rock Man,the need for this info arose only 6 minutes ago,now the pic's on my desktop..
good info to have on the RR forums,
Many Thank You's!
__________________
Yep..Got some radios..I can hear lotsa stuff...
Reply With Quote
  #5 (permalink)  
Old 11-15-2009, 1:01 AM
gmclam's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Sep 2006
Location: Fair Oaks, CA
Posts: 4,845
Default

If you look at the signals from the cable, both ring AND sleeve are transmitted on from the PC.
__________________
PRO-95 | PRO-10 | PRO-97 | PRO-77 | PRO-92 | PSR-300 | PSR-310
Reply With Quote
Sponsored links
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 6:13 AM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
All information here is Copyright 2012 by RadioReference.com LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2011 by RadioReference.com LLC Privacy Policy  |  Terms and Conditions