https://www.cncwiki.org/index.php?action=history&feed=atom&title=UGREEN_40391_USB_to_RS-232_Adapter
UGREEN 40391 USB to RS-232 Adapter - Revision history
2026-05-01T20:29:13Z
Revision history for this page on the wiki
MediaWiki 1.43.0
https://www.cncwiki.org/index.php?title=UGREEN_40391_USB_to_RS-232_Adapter&diff=877&oldid=prev
Fdarling: initial page creation
2024-02-13T02:59:11Z
<p>initial page creation</p>
<p><b>New page</b></p><div>[[File:UGREEN_40391_Stock_Photo.jpg|thumb|stock photo]]<br />
<br />
== Overview ==<br />
<br />
USB to RS-232 adapter, based on an FTDI chipset. It has a male DE9 pinout with female jackscrews, similar to a native RS-232 port on a computer.<br />
<br />
== Wiring Diagram ==<br />
<br />
{| class="wikitable"<br />
! DE9 Pin<br />
! Function<br />
! Direction<br />
|-<br />
| 1<br />
| DCD<br />
| PC &larr; device<br />
|-<br />
| 2<br />
| RXD<br />
| PC &larr; device<br />
|-<br />
| 3<br />
| TXD<br />
| PC &rarr; device<br />
|-<br />
| 4<br />
| DTR<br />
| PC &rarr; device<br />
|-<br />
| 5<br />
| GND<br />
| PC &harr; device<br />
|-<br />
| 6<br />
| DSR<br />
| PC &larr; device<br />
|-<br />
| 7<br />
| RTS<br />
| PC &rarr; device<br />
|-<br />
| 8<br />
| CTS<br />
| PC &larr; device<br />
|-<br />
| 9<br />
| RI<br />
| PC &larr; device<br />
|-<br />
| (shield)<br />
| shield<br />
| PC &harr; device<br />
|}<br />
<br />
== Online Resources ==<br />
<br />
[https://www.amazon.com/gp/product/B06WLLSDR9/ UGREEN USB to DB9 RS232 Cable Converter, USB 2.0 to Serial Adapter Hexnuts Male with FTDI Chipset | Amazon]</div>
Fdarling