MANO321 Mini ITX Motherboard
Board and Pin Assignments
19
2.4.15
ATX Power Input Connector (CN26)
Steady and sufficient power can be supplied to all components on the board by
connecting power connector. Please make sure all components and devices are properly
installed before connecting the power connector.
External power supply plug fits into the connector in only one orientation. Properly press
down power supply plug until it completely and firmly fits into this connector. Loose
connection may cause system instability.
By default, the motherboard comes with a 4-pin ATX 90 angle connector (CN9) for DC
+9~20V power input.
The CN26 pr12V to the CPU power circuit.
2.4.16
I2C Connector (CN27)
The CN27 is a 4-pin (pitch=2.00mm) connector for SMBus interface which is compatible
with I2C.
2.4.17 SMBus Connectors (CN28)
The CN28 is a 5-pin (pitch=2.00mm) connector. The SMBus (System Management Bus)
is a simple bus for the purpose of lightweight communication.
Pin
Signal
1
+12V
2
+12V
3
GND
4
GND
Pin Signal
1
+3.3V
2
I2C_SCL
3
GND
4
I2C_SDA
Pin
Signals
1
SMB_CLK
2
SMB_DATA
3
SMB_ALERT
4
GND
5
+3.3V
Summary of Contents for MANO321 Series
Page 1: ...MANO321 Series Intel Celeron Processor J6412 Mini ITX Motherboard User s Manual ...
Page 6: ...vi This page is intentionally left blank ...
Page 10: ...MANO321 Mini ITX Motherboard 4 Introduction 1 4 Block Diagram ...
Page 12: ...MANO321 Mini ITX Motherboard 6 Board and Pin Assignments Bottom View ...
