USB to Serial_Manual_Eng_DM v3.05.1

USB to Serial User Manual
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- Port# RT: RS422, RS485 Terminal Resistor
Multi-4U Combo V1.6
Multi-8/USB Combo V1.6
422: Enable terminal resistor for RS422
485: Enable terminal resistor for RS485
NONE: Disable terminal resistors (Default)
- External Voltage Supply
- In Multi-4/8 USB Combo model, +5V is always supplied through the 9th pin of DB9 connector. Users can connect
9th pin to the device if they require to supply +5V DC to the device.