Siemens SINUMERIK 828D

6.9 RS 232 serial interface
Pin assignment
Table 6-9 X140 pin assignment
Pin Signal name Signal type Meaning
1 Not connected
2 RxD I Serial receive data
3 TxD O Serial transmit data
4 DTR O Data terminal ready
5 M - Ground (reference potential)
6 DSR I Ready for operation
7 RTS O Switch-on transmit section
8 CTS I Clear to send
9 Reserved
Use
For connecting the MODEM MD720 GSM modem.
Cable specification
Table 6-10 Cable specification for X140
Feature Version
Connector type 9-pin SUB-D connector
Cable type RS232
Article number 6FX8002-1AA11-1□□0
Max. cable length 3 m
Interface description
6.9 RS 232 serial interface
PPU and components
Manual, 05/2015, 6FC5397-2DP40-3BA4 91