ECS H55H-CM, Руководство пользователя, Страница: 23 / 74

19
Installing the Motherboard
COM1~2: Onboard serial port headers
Connect a serial port extension bracket to this header to add a second serial port to
your system.
1
DCDB Data carry detect
2
NSINB Serial Data In
3
NSOUTB Serial Data Out
4
DTRB Data terminal ready
5
GND Ground
6
DSRB Date set ready
7
RTSB Request to send
8
CTSB Clear to send
9
RI Ring Indicator
10
Key No pin
Pin Signal Name Function
CHS: Chassis Intrusion Detect Header
Short Chassis cover is removed
Open Chassis cover is closed
This detects if the chassis cover has been removed. This function needs a chassis
equipped with instrusion detection switch and needs to be enabled in BIOS.
Pin 1-2 Function