Asus A7S-VM A7S-VM User Manual - Page 32
ASUS A7S-VM User's Manual, Chassis Intrusion Lead 4-1 pin CHASSIS, SMBus Connector 5-1 pin SMB
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Ground Chassis Signal +5Volt (Power Supply Stand By) 3. H/W SETUP Connectors 3. HARDWARE SETUP 7) Chassis Intrusion Lead (4-1 pin CHASSIS) This lead is for a chassis designed for chassis intrusion detection. This requires an external detection mechanism such as a chassis intrusion monitor/sensor or microswitch. When any chassis component is removed, the sensor is triggered and a high-level signal is sent to this lead to record a chassis intrusion event.The event is then processed by software such as LDCM. When not using the chassis intrusion lead, place a jumper cap over the pins to close the circuit. CHASSIS 1 A7S-VM A7S-VM Chassis Open Alarm Lead 8) SMBus Connector (5-1 pin SMB) This connector allows you to connect 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 specific implementation of an I2C bus, which is a multi-device bus; that is, multiple chips can be connected to the same bus and each one can act as a master by initiating data transfer. SMB A7S-VM A7S-VM SMBus Connector 1 SMBCLK Ground SMBDATA +5V 32 ASUS A7S-VM User's Manual