Installation guide

ManualsBrandsSIIG Manualscomputer componentsUSB to RS-422/485 Serial Adapter

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Jumper Settings

RS-422 or 4-wire RS-485 working model with

termination resistor

2-wire RS-485 working model with termination

resistor

This DP RS-422/485 PCI Adapter Card equips

independent TX and RX termination resistors for

each serial port. User can modify the jumper

setting (short the pins) to avoid impedance

mismatched problem when operate under Multi-

drop transmission. Resistors should be added

near the receiving side.