USB to Serial_Manual_Eng_DM v3.05.1

USB to Serial User Manual
41
1. RS232 Model
- DB9 Female Pin Assignment
- External Voltage Supply Jumper
Multi-4U RS232 V1.6
Multi-8U RS232 V1.6
There are jumpers for each ports inside the case. Users can select modes by changing the position of a jumper.
RI: Use 9th pin of DB9 connector as RI signal (Default)
Power: Use 9th pin of DB9 connector to supply +5V DC.