Siemens SIMATIC IPC847D - Page 136

Technical specifications
8.5 Hardware description
SIMATIC IPC847D
136 Operating Instructions, 01/2014, A5E32997454-AA
Serial interfaces COM1, COM2 (V24), X30, X31, X504
Pin no.
Short name
Meaning
Input / output
1
DCD (M5)
Receive signal (carrier)
Input
2
DSR (M1)
Ready for operation
Input
3
RxD (D2)
Receive data
Input
4
RTS (S2)
Request to send
Output
5
TxD (D1)
Send data
Output
6
CTS (M2)
Clear to send
Input
7
DTR (S1)
Data terminal ready
Output
8
RI (M3)
Incoming call
Input
9
GND (E2)
Functional ground (reference potential)
-
10
GND
-
Pin no.
Short name
Meaning
Input / output
1
DCD (M5)
Receive signal (carrier)
Input
2
RxD (D2)
Receive data
Input
3
TxD (D1)
Send data
Output
4
DTR (S1)
Data terminal ready
Output
5
GND (E2)
Functional ground (reference potential)
–
6
DSR (M1)
Ready for operation
Input
7
RTS (S2)
Request to send
Output
8
CTS (M2)
Clear to send
Input
9
RI (M3)
Incoming call
Input