Rs 232 Serial Interface - Siemens PPU 26x.3 series Manual

Interface description

6.9 RS 232 serial interface

6.9 RS 232 serial interface
X140 pin assignment
Pin
1
2
3
4
5
6
7
8
9
Use
For connecting the MODEM MD720 GSM modem.
X140 cable specification
Feature
Connector type
Cable type
Article number
Max. cable length
98
Signal name Signal type
Not connected
RxD I
TxD O
DTR O
M -
DSR I
RTS O
CTS I
Reserved
Meaning
Serial receive data
Serial transmit data
Data terminal ready
Ground (reference potential)
Ready for operation
Switch-on transmit section
Clear to send
Version
9-pin SUB-D connector
RS232
6FX8002-1AA11-1□□0
3 m
Manual, 10/2015, 6FC5397-2DP40-5BA3
PPU and components