Habey EMB-4500, Руководство пользователя

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Key components of this motherboard are Integrated circuit and these components
could be easily damaged by electrostatic influence. So, before installing this unit, please
always keep the following precautions in mind:
1. Hold the board by edges and don’t touch any components or plug and socket pins.
2
．
Wear anti-static gloves/wrist strap while touching the integrated circuit components, such as
CPU, RAM, etc.
3
．
Put those unused or uninstalled components in static shielding bags or trays.
4
．
Please first check the power switch is off before connecting the power plug.
Before installing the computer accessories:
Following the instructions below will help to prevent your computer from being damaged, and
also ensuring your personal safety.
1
．
Please make sure your computer is disconnected from the power supply.
2
．
Please always wear anti-static wrist strap or gloves to operate the board in case that you
may touch the integrated circuit components, such as RAM.
2.3 Jumper Setting
Please refer to following instructions to setup jumpers before installing your hardware devices.
Remark:
How to identify the PIN1 of all jumpers and interfaces: Please observe the word mark
on the side of the plug socket, which will be a “1” or bold line or triangular symbol; And please
look at the back of PCB, each with a square shape will be the PIN 1; and all the jumpers’ PIN1
have a white arrow on the side.
2.3.1 COM2 Jumper Setting (J1,J2,J3)
(J1,J2, J3) jumpers are used to setup COM2 transmission mode. COM2 supports RS232,
RS422 RS485. System default [RS232].
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