March Products 120 III (PC620) user manual Jumper Setting & Connectors

User Manual version 2503

4.2.1.1.Jumper Setting & Connectors

4.2.1.2.Jumpers & Jumper Setting

The table below lists the function of each jumper on IO-005. The related jumper settings are shown in the coming sections.

JP3	COM1 pin 9 power selection
JP2	COM2 pin 9 power selection
JP1	COM4 pin 9 power selection

The APOLLO onboard COM port power selection is selected via jumper setting

RI	5V	12V
1-2	3-4	5-6

4.2.1.3. CN4: EXT. Connector

The onboard speaker-out, line-in, MIC-in, DIO and external FDD are connected to the CN4 on IO-005. Then, via a 44-pin flat cable, these signals are linked to IO-006 for external device connection.

LIBRA 120 III (PC620 Intel 815E) 4-67

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