Gigabyte GA-MA790X-UD3P Manual - Page 31

COM Serial Port Header, White, CI Chassis Intrusion Header

Page 31 highlights

18) COM (Serial Port Header, White) The COM header can provide one serial port via an optional COM port cable. For purchasing the optional COM port cable, please contact the local dealer. 9 1 10 2 Pin No. 1 2 3 4 5 6 7 8 9 10 Definition NDCD NSIN NSOUT NDTR GND NDSR NRTS NCTS NRI No Pin 19) CI (Chassis Intrusion Header) This motherboard provides a chassis detection feature that detects if the chassis cover has been removed. This function requires a chassis with chassis intrusion detection design. Pin No. Definition 1 Signal 1 2 GND - 31 - Hardware Installation

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Hardware Installation
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18)
COM (Serial Port Header, White)
The COM header can provide one serial port via an optional COM port cable. For purchasing the
optional COM port cable, please contact the local dealer.
Pin No.
Definition
1
NDCD -
2
NSIN
3
NSOUT
4
NDTR -
5
GND
6
NDSR -
7
NRTS -
8
NCTS -
9
NRI -
10
No Pin
10
9
2
1
19)
CI (Chassis Intrusion Header)
This motherboard provides a chassis detection feature that detects if the chassis cover has been
removed. This function requires a chassis with chassis intrusion detection design.
Pin No.
Definition
1
Signal
2
GND
1