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Siemens SIMATIC PC Adapter TS Adapter Quick Reference Manual page 16

Siemans pc adaptor quick reference guide
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PC/TS Adapter
The RS232 connector has the following pin assignments:
1
6
Figure 1-10
RS232 Connector (PC-compatible)
Signals
Pin
Abbrevia-
Description
No.
tion
1
DCD
Data Carrier Detect
2
RXD
Received Data
3
TXD
Transmitted Data
4
DTR
Data Terminal Ready
5
GND
Reference potential (0V)
for all RS232 signals
(Signal Ground)
6
DSR
Data Set Ready
7
RTS
Request to Send
8
CTS
Clear to Send
9
RI
Ring Indicator
Shield
On connector casing*
* The shield is interconnected with the MPI/DP connector via
the adapter casing's shield and the MPI/DP cable shield.
12
Quick Reference Guide
5
9
Input/
Output
Input
Input
Output
Output
Input
Output
Input
Input
PC/TS Adapter
A5E00078070-02

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