USB to Serial_Manual_Eng_DM v3.05.1

USB to Serial User Manual
35
-Jumper Setting
- RS232
RI: Use 9th pin of DB9 connector as RI signal (Default)
Power: Use 9th pin of DB9 connector to supply +5V DC power.
(Requires an adapter.)
Mode: Used as power mode setting (Keep default. Do not temper with it.)