Siemens SIMATIC IPC647D Operating Instructions Manual page 137

Serial interfaces COM1, COM2 (V24), X30, X31, X504
Pin no.
1
2
3
4
5
6
7
8
9
10
Pin no.
1
2
3
4
5
6
7
8
9
SIMATIC IPC647D
Operating Instructions, 01/2014, A5E32996306-AA
Short name Meaning
DCD (M5) Receive signal (carrier)
DSR (M1) Ready for operation
RxD (D2) Receive data
RTS (S2) Request to send
TxD (D1) Send data
CTS (M2) Clear to send
DTR (S1) Data terminal ready
RI (M3) Incoming call
GND (E2) Functional ground (reference potential) -
GND
Short name Meaning
DCD (M5) Receive signal (carrier)
RxD (D2) Receive data
TxD (D1) Send data
DTR (S1) Data terminal ready
GND (E2) Functional ground (reference potential) –
DSR (M1) Ready for operation
RTS (S2) Request to send
CTS (M2) Clear to send
RI (M3) Incoming call
Technical specifications
8.5 Hardware description
Input / output
Input
Input
Input
Output
Output
Input
Output
Input
-
Input / output
Input
Input
Output
Output
Input
Output
Input
Input
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