Jumpers and settings, Cmos & rtc clear jumper (jp8) – Kontron PCI-761 User Manual

Page 18

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9. Jumpers and Connectors

PCI 761 – User’s Guide (V1.01)

16

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9.3. Jumpers and Settings

Proper jumper settings configure the PCI-761 to meet your application purpose.

9.3.1. COM1 Mode Select Jumpers for RS-232/422/485 (JP2, JP3, JP4)

These jumpers select the COM1 port’s communication mode to operate RS-232 or RS-422/485.

Description

Function

Jumper Setting

RS-232 (Default)

JP2

JP3

JP4

RS-422

JP2

JP3

JP4

COM1

RS-485

JP2

JP3

JP4

9.3.2. CMOS & RTC Clear Jumper (JP8)

You may need to use this jumper is to clear the CMOS memory if incorrect BIOS settings.

Description

Function

Jumper Setting

Normal (Default)

Clear CMOS

CMOS & RTC Clear

Clear

RTC

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