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ATX Power Input Connector
(20-pin ATXPWR1)
(see p.8 No. 10)
Though this motherboard provides 24-pin ATX power connector,
it can still work if you adopt a traditional 20-pin ATX power supply.
To use the 20-pin ATX power supply, please plug your power
supply along with Pin 1 and Pin 13.
COM Port Headers
(9-pin COM5: see p.8 No. 12)
(9-pin COM6: see p.8 No. 11)
(9-pin COM4: see p.8 No. 13)
(9-pin COM3: see p.8 No. 14)
Digital Input / Output Pin Header
(9-pin JGPIO1)
(see p.8, No. 48)
SATA Power Connectors
(4-pin JPWR1: see p.8, No. 26)
(4-pin JPWR2: see p.8, No. 25)
12
24
1
13
20-Pin ATX Power Supply Installation
RRXD1
DDTR#1
DDSR#1
CCTS#1
1
RRI#1
RRTS#1
GND
TTXD1
DDCD#1
PIN
RS232
DCD, Data
1
carrier detect
RXD, Receive
2
data
TXD, Transmit
3
data
DTR, Data
4
terminal ready
5
GND
1
18
Please connect an ATX power
supply to this connector.
COM port headers support
serial port modules.
RS422
TX-
RX+
TX+
RX-
GND
PIN
Signal Name
PIN
1
Digital Output 0
2
3
Digital Output 1
4
5
Digital Output 2
6
7
Digital Output 3
8
9
JGPIO_PWR1
10
24
12
13
1
RS485
RTX-
N/A
RTX+
N/A
GND
Signal Name
Digital Input 0
Digital Input 1
Digital Input 2
Digital Input 3
GND
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