7
Jumper
Jumper
Name
Description
JCOM1
COM1 Port Pin9 Function Select
4-pin Block
(2.0pitch)
JLCD
LCD Panel VCC Select
4-pin Block
(2.0 pitch)
JLED
Inverter Backlight VCC Select
3-pin Block
(2.54 pitch)
JMPE
MPE1 Slot VCC Select
3-pin Block
(2.54 pitch)
JAT_ATX1 ATX/AT Mode Select
3-pin Block
(2.54 pitch)
J1
Pin (1-2):
Clear CMOS RAM Settings
Pin (3-4):
RTC Reset
Pin (5-6):
TXE Override
Pin (7-8):
Case Open Function
8-pin Block
(2.0 pitch)
Chapter 2
Hardware Installation
2-1 Jumper Setting
JCOM1 (4-pin): COM1 Port Pin9 Function Select
(2.0 pitch)
JCOM1
→
COM1 Port Pin-9
6
4
2
3
1
5
2-4 Closed:
RI=RS232(Default);
3-4 Closed:
RI= 5V;
4-6 Closed:
RI= 12V.
1 3 5
2 4 6
1 3 5
2 4 6
JCOM1
