DIY Wiring Testing w/ Putty Converter COM Port RS-232 – TTL Serial MAX232EPE IC Breadboard Prototype

test with #putty #rx #tx communication prototype breadbroad wiring max232epe maxim ic schematic +5v-powered, multichannel rs-232 drivers/receivers
diy Converter com serial port (10 pin IDC RS232 Motherboard header) old desktop pc RS232 interface to TTL Serial Module 3V ~ 5V Modul UART

common 9-pin connector:
1 DCD : Data Carrier Detect
2 RXD : Receive Data
3 TXD : Transmit Data
4 DTR : Data Terminal Ready
5 GND : System Ground
6 DSR : Data Set Ready
7 RTS : Request to Send
8 CTS : Clear to Send
9 RI : Ring Indicator