Serial Port Connector (9 pin): Dell� OptiPlex� 4xxLe (4XXDL)
Serial Port Connector (9 pin): OptiPlex 4xxLe
(4XXDL)
Layout
Pin Assignments for the Serial Port
Connector
| Pin |
Signal |
I/O |
Definition |
| 1 |
DCD |
I |
Data carrier detect |
| 2 |
SIN |
I |
Serial input |
| 3 |
SOUT |
O |
Serial output |
| 4 |
DTR |
O |
Data terminal ready |
| 5 |
GND |
N/A |
Signal ground |
| 6 |
DSR |
I |
Data set ready |
| 7 |
RTS |
O |
Request to send |
| 8 |
CTS |
I |
Clear to send |
| 9 |
RI |
I |
Ring indicator |
| Shell |
N/A |
N/A |
Chassis ground |
|
