Chapter 2 Installation
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EC7-1818CLD2NA
Tip: How to identify the first pin of the jumpers and connectors
1.
Observe the letter beside the socket: the first pin is usually marked with “1” or
bold lines or triangular symbols;
2.
Observe the solder pad on the back; the square pad is the first pin.
Jumper Setting
1.
JCC1: Clear/Keep CMOS Setting (Pitch: 2.0mm)
CMOS is powered by the button battery on board. Clearing CMOS will restore
original settings (factory default). The steps are listed as follows: (1) Turn off the
computer and unplug the power cable; (2) Instantly short circuit JCC1; (3) Turn on
the computer; (4) Follow the prompt on screen to enter BIOS setup when booting the
computer, load optimized defaults; (5) Save and exit. Please set as follows:
Setup
Function
1-2 Open
Normal ((Default)
JCC1
1-2 Short
Clear the contents of CMOS and all BIOS
settings will restore to factory default values.
2.
JP2 ~ JP4: RS-232/RS-422/RS-485 Mode Selection for COM2 (Pitch:
2.0mm)
COM2 supports the operating modes of RS-232/RS-422/RS-485, which can be set by JP2
~ JP4.
Mode Selection
Pin
Setting
RS-232
(Default)
RS-422
RS-485
JP2 1-2 5-6
3-4
JP3 1-3 3-5
3-5
JP3 2-4 4-6
4-6
JP4 1-3 3-5
3-5
JP2 ~ JP4
JP4 2-4 4-6
4-6
