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UNO-148 User Manual
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A.7.3
COM Port RS422/485 Termination Resistor Setting
A.8
BIOS Update Setting
Use SW4 to set BIOS1/2 update selection, BIOS1 (Default), BIOS2 (PCIex4) for Fac
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tory Engineering staff use.
BIOS1: Configure to Setting 1 (Default) BIOS2: Configure to Setting 3
SW1
Termination Resistor Setting
Description
This switch is used to select Termination Resistor (120 ohm) for
long distance transmission or device matching.
Default
Bit3 off & Bit8 off
COM1
Bit3 on
COM2
Bit8 on
SW2
Termination Resistor Setting
Description
This switch is used to select Termination Resistor (120 ohm) for
long distance transmission or device matching.
Default
Bit3 off & Bit8 off
COM3
Bit3 on
COM4
Bit8 on