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3300060 Pentium
2.4.11.1 COM1 Port Connector: CN15
The connector, COM 1, is a DB-9 connector, and the following
table shows the pin assignments of this connector.
Pin
Signal Name
1
DCD, Data carrier detect
2
RXD, Receive data
3
TXD, Transmit data
4
DTR, Data terminal ready
5
GND, ground
6
DSR, Data set ready
7
RTS, Request to send
8
CTS, Clear to send
9
RI, Ring indicator
2.4.11.2 COM2 Port Connectors: CN9
The RS-232 pin assignments are listed on the following table.
Pin
Description
Data
Carrier
Detect
1
(DCD)
3
Receive Data (RXD)
5
Transmit Data (TXD)
Data
Terminal
Ready
7
(DTR)
9
Ground (GND)
Jumpers and Connectors
®
M All-in-One Capa Board User's Manual
COM1
Pin
Description
2
Data Set Ready (DSR)
4
Request to Send (RTS)
6
Clear to Send (CTS)
8
Ring Indicator (RI)
10
NC
CN9
2
1
3
4
6
5
8
7
9
10
17
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