Db-9 Connector Pinout; Dip Switch Configuration - StarTech.com NETRS232485W User Manual

DB-9 Connector Pinout

DIP Switch Configuration

DIP 1 DIP 2
ON
ON
OFF
OFF
Instruction Manual
Termination Configuration
ON Termination for long distance 4-wire RS485/422
OFF Reserved
ON Termination for long distance 2-wire RS485
OFF No termination for RS485/ 422 (short distance)
3