DFI BT253 - Manual (Page 24)

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24
Chapter 2 Hardware Installation
Chapter 2
Chassis Intrusion Connector
The board supports the chassis intrusion detection function. Connect the chassis intrusion
sensor cable from the chassis to this connector. When the system’s power is on and a chassis
intrusion occurred, an alarm will sound. When the system’s power is off and a chassis intrusion
occurred, the alarm will sound only when the system restarts.
1
2 Ground
Signal
3
Chassis
Intrusion
Mic-in Connector
3
The mic-in connector is used to connect an external microphone.
Mic-in
1 4
Ground
MIC2-RI MIC2-LI MIC2-
JD