Edgeport RS-232 DB9 pinout:
http://ftp1.digi.com/support/documentation/loopback.txt
DB-9M Function Abbreviation
------ ------------------- ----------------
Pin #1 Data Carrier Detect CD
Pin #2 Receive Data RD or RX or RXD
Pin #3 Transmitted Data TD or TX or TXD
Pin #4 Data Terminal Ready DTR
Pin #5 Signal Ground GND
Pin #6 Data Set Ready DSR
Pin #7 Request To Send RTS
Pin #8 Clear To Send CTS
Pin #9 Ring Indicator RI
RS-232 DB25 pinout:
Common Ground (G) Pin 7
Protective Ground (PG) Pin 1
Transmitted Data (TxD) Pin 2
Received Data (RxD) Pin 3
Data Terminal Ready (DTR) Pin 20
Data Set Ready (DSR) Pin 6
Request To Send (RTS) Pin 4
Clear To Send (CTS) Pin 5
Carrier Detect (DCD) Pin 8
Ring Indicator (RI) Pin 22
Last updated:
Jun 11, 2019