Fujitsu D3231-S - Internal Serial (COM) Port Connector; External Serial (COM) Port Connector

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TechNotes D323x-S_D3243-S V1.2 Page 25 of 98 http://www.fujitsu.com/fts/products/computing/pc/accessories/mainboards
mainboards
Interfaces & Connectors
3.2 Internal Serial (COM) Port Connector
Note: D3235-S: The internal COM-Port is COM1
D3231-S / D3236-S / D3243-S: The internal COM-Port is COM2
3.3 External Serial (COM) Port Connector
Pin
Signal
Pin
Signal
1
DCD 1
6
DSR 1
2
SIN 1
7
RTS 1
3
SOUT 1
8
CTS 1
4
DTR 1
9
RI 1
5
GND
Pin
Signal
Pin
Signal
1
DCD 2
2
DSR 2
3
SIN 2
4
RTS 2
5
SOUT 2
6
CTS 2
7
DTR 2
8
RI 2
9
GND
10
Key
Pin 1
Pin 2
Pin 1
Pin 6