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IBASE Technology Inc.

2.3 Setting the Jumpers

Jumpers are used on MBD304 to select various settings and features according to

your needs and applications. Contact your supplier if you have doubts about the best

configuration for your needs. The following lists the jumpers and connectors on

MBD304 and their respective functions.

JP3, JP4: COM1/COM2 RS232 RI/+5V/+12V Power Setting

JP4/JP5

Setting

Function

Pin 1-3

Short/Closed

+12V

Pin 3-4

Short/Closed

Pin 3-5

Short/Closed

+5V

J2: Clear CMOS Setting

Function

Normal

Clear CMOS

CN1: DC_IN Connector (+12V Adaptor 4 Pin)

Pin #

Signal Name

+12V

GND