I am newbie in RPi.
I want to know what is suitable configuration the connection to raspberry pi 3 if device output which is use serial port db9 then give digital signal to raspberry pi 3 by IDC10 Head Connector ? It is must add another adapter/interface ?
1. Port db9 (male) on the rear from device output like monitor, pc, etc
2. Then connect to the end of serial cable which is 10 pins (female) >>> IDC10 Head Connector
3. From that IDC10 Connector must be connect to RPi 3