Difference between revisions of "20ma current loop to RS-232 conversion"
(adding more resources. Schematic at circuitlab) |
(Add my terminal strip colors) |
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* Another circuit. From [[http://altairclone.com/teletype.htm Altairclone]] Specifically designed to fit in a Teletype model 33 using only a 12vdc wall wart for power. | * Another circuit. From [[http://altairclone.com/teletype.htm Altairclone]] Specifically designed to fit in a Teletype model 33 using only a 12vdc wall wart for power. | ||
* Another [https://www.circuitlab.com/circuit/mnartk/screenshot/1024x768/ circuit] I found referenced on the greenkeys email list | * Another [https://www.circuitlab.com/circuit/mnartk/screenshot/1024x768/ circuit] I found referenced on the greenkeys email list | ||
| + | |||
| + | ==My ASR hookup== | ||
| + | <source lang="text"> | ||
| + | Signal screw terminal my wire color | ||
| + | --------------------------------------------------------------------- | ||
| + | Transmitted data send (+) 7 orange | ||
| + | Transmitted data return (-) 6 brown | ||
| + | |||
| + | Received data send (+) 4 red | ||
| + | Received data return (-) 3 black | ||
| + | </source> | ||
[[Category:Various]] | [[Category:Various]] | ||
[[Category:Teletype]] | [[Category:Teletype]] | ||
Revision as of 18:11, 20 August 2015
Contents
20ma current loop <> RS-232 conversion
Vintage PCB
Dig this crazy circuit board man! Still in it's original packaging from Hobby World Electronics in Northridge California.
other resources
- Another circuit. From [Altairclone] Specifically designed to fit in a Teletype model 33 using only a 12vdc wall wart for power.
- Another circuit I found referenced on the greenkeys email list
My ASR hookup
Signal screw terminal my wire color
---------------------------------------------------------------------
Transmitted data send (+) 7 orange
Transmitted data return (-) 6 brown
Received data send (+) 4 red
Received data return (-) 3 black
