External Ports; Com1/Com2 - Siemens SIMATIC IPC627D Operating Instructions Manual

Technical specifications
8.5 Hardware descriptions
Note
This slot can also be used for PCIe x8, x4 and x1 modules.
8.5.3

External ports

8.5.3.1

COM1/COM2

Serial port COM1, 9-pin (plug) or COM2
Pin no.
1
2
3
4
5
6
7
8
9
132
Short description Meaning
DCD Data carrier detect
RxD Received data
TxD Transmit data
DTR Data terminal ready
GND Ground
DSR Ready for operation
RTS Request to send
CTS Clear to send
RI Incoming call
Input / output
Input
Input
Output
Output
-
Input
Output
Input
Input
SIMATIC IPC627D/827D
Operating Instructions, 09/2014, A5E32990859-AB