User Guide

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75KAV/75KAV-X
2-9 CONNECTORS
• In this section we list all external connectors that user will use them.
2-9.1 J3 AND J4
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J4
J3
PIN 1 Logic High (+)
HDD LED CONNECTOR
PIN 2 HDD LED SIGNAL
PIN 3 HDD LED SIGNAL
PIN 4 Logic High (+)
DESCRIPTION
This connector supplies power to the cabinet's IDE
activity LED. Read and write activity by devices
connected to the Primary or SecondaryIDE
connector will cause the LED to light up.
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J4
J3
INFRARED CONNECTOR
PIN 6 INFRARED TRANSMIT SIGNAL
PIN 7 GND
PIN 8 INFRARED RECEIVE SIGNAL
PIN 9 NONE
PIN 10 Vcc
DESCRIPTION
This connector supports an optional wireless
transmitting and receiving infrared module. This
module mounts to a small opening on system cases
that support this feature.
User must also configure the setting through
BIOS program "Peripheral Setup" to select whether
UART2 is directed for use with COM2 or IrDA.
Use the five pins and connect a ribbon cable from
the module to the motherboard's IR connector
according to the pin definitions.