Advantech UTC-520 Manual do Utilizador descarregar pdf (Página 40)

UTC-520A/B User Manual 32

4.2.1.3 Jumper Description

Cards can be configured by setting jumpers. A jumper is a metal bridge used to close

an electric circuit. It consists of two metal pins and a small metal clip (often protected

by a plastic cover) that slides over the pins to connect them. To close a jumper, you

connect the pins with the clip. To open a jumper, you remove the clip. Sometimes a

jumper will have three pins, labeled 1, 2 and 3. In this case you would connect either

pins 1 and 2, or 2 and 3.

The jumper settings are schematically depicted in this manual as follows.

A pair of needle-nose pliers may be helpful when working with jumpers. If you have

any doubts about the best hardware configuration for your application, contact your

local distributor or sales representative before you make any changes.

(1-2)* RS232

(3-4) RS485

(5-6) RS422

J6 Clear CMOS

Part Number 1653003101

Footprint HD_3x1P_79_D

Description PIN HEADER 3x1P 2.0mm 180D(M) DIP 2000-13 WS

Setting Function

(1-2)* Normal

(2-3) Clear COMS

Warning! To avoid damaging the computer, always turn off the power supply

before setting jumpers to clear CMOS. Before turning on the power sup-

ply, set the jumper back to 3.0 V Battery On.

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Advantech UTC-520 Manual do Utilizador Página 40