Jumpers; Jumper Description; Jumper List - Advantech RSB-4221 User Manual

Risc 3.5inch sbc based on ti sitara am3358 cortex a8 1ghz high performance processor

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2.1

Jumpers

2.1.1

Cards can 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 con-

nect 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.

Generally, you simply need a standard cable to make most connections.

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

before setting jumpers.

2.1.2

Table 2.1: Jumper List

RSB-4221 User Manual

Boot device select(SW1)

LVDS power level select(CN3)

Backlight power level select (CN2)

COM1 RS232 and RS485 mode detect(CN10)

UART1 RS232, RS422, RS485 signal select (JSETCOM1)

UART1 switch (CN14)

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