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PCI/ISA System Board
86
Connectors J1 and J2
Primary (COM1) and Secondary (COM2) Serial Ports
Connector J5
Parallel Printer Port
Pin
1
2
3
4
5
6
7
8
9
Function
DCD (Data Carrier Detect)
RX (Receive Data)
TX (Transmit Data)
DTR (Data Terminal Ready)
Ground (Signal Ground)
DSR (Data Set Ready)
RTS (Request to Send)
CTS (Clear to Send)
RI (Ring Indicator)
Pin
1
2
3
4
5
6
7
8
9
Function
-Strobe
Data 0
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7