NEC Aspire S Manual page 42

Section 2: PCB Installation and Startup
Connector Pin-Outs on CPU
2-10 ◆ Section 2: PCB Installation and Startup
Serial Cable Connector - CN1 (D-Sub 9-Pin Male)
(Null Modem/Cross-Over Cable Used)
1 2 3 4 5
6 7 8 9
Digital Station RJ61 Cable Connector - CN20
12345678
Digital Station RJ61 Cable Connectors - CN21
12345678
Pin No.
1
2
3
4
5
6
7
8
9
Pin No.
1
2
3
4
5
6
7
8
Pin No.
1
2
3
4
5
6
7
8
Signal
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
-
Connection
Ring for port 4
Ring for port 3
Ring for port 2
Tip for port 1
Ring for port 1
Tip for port 2
Tip for port 3
Tip for port 4
Connection
Ring for port 8
Ring for port 7
Ring for port 6
Tip for port 5
Ring for port 5
Tip for port 6
Tip for port 7
Tip for port 8
Aspire S Hardware Manual