Asus A7N8X - Manual (Page 28)

1-18 Chapter 1: Motherboard Information
15. SMBus Connector (6-1 pin SMB1)
This connector supports SMBus (System Management Bus) devices. SMBus
devices communicate by means of the SMBus with an SMBus host and/or
other SMBus devices. SMBus is a multi-device bus that permits multiple chips
to connect to the same bus and enable each one to act as a master by
initiating data transfer.
A7N8X ®
A7N8X SMBus Connector
SMB1
1
SMBCLK
Ground
SMBDA
T
A
+3V
FLOA
TING
14. Infrared Module connector (10-1 or 10-2 pin IR_CON1)
These connectors support an optional wireless transmitting and receiving
infrared module. The module mounts to a small opening on the system chassis
that support this feature. You must also configure the UART2 Use As
parameter in BIOS to set UART2 for use with IR.
Use the ten pins as shown in Back View and connect a ribbon cable from the
module to the motherboard SIR connector according to the pin definitions.
A7N8X ®
A7N8X Infrared Connector
Standard Infrared (SIR)
Front View Back View
+5V IRTX
IRRX
(NC) GND
+5VSB
NC
+5 V
GND
CIRRX
NC
GND IRRX IR
TX
CIR
SIR
IR_CON1