Asus NRL-LS Manual do Utilizador descarregar pdf (Página 48)

2-22

Chapter 2: Hardware information

NRL-LS

NRL-LS Chassis Open Alarm Lead

+5Volt

(Power Supply Stand By)

Chassis Signal

Ground

NRL-LS

NRL-LS SMBus Connectors

SMBCLK

Ground

SMBDATA

+3V

FLOATING

9. Chassis alarm lead (4-1 pin J2)

This lead is for a chassis designed with intrusion detection feature.

This requires an external detection mechanism such as a chassis

intrusion sensor or microswitch. When you remove any chassis

component, the sensor triggers and sends a high-level signal to this

lead to record a chassis intrusion event.

By default, the pins labeled “Chassis Signal” and “Ground” are shorted

with a jumper cap. If you wish to use the chassis intrusion detection

feature, remove the jumper cap from the pins.

10. SMBus connector (6-1 pin J5)

This connector allows you to connect SMBus (System Management

Bus) devices. Devices communicate with an SMBus host and/or other

SMBus devices using the SMBus interface. SMBus is a specific

implementation of an I

C bus, a multi-device bus that allows multiple

chips to connect to the same bus and enable each one to act as a

master by initiating data transfer.

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Asus NRL-LS Manual do Utilizador Página 48