
Interfaces, Displays and Operator Controls
Industrial Ethernet OSM/ESM
C79000-Z8976-C068-04
45
4.1.6 Serial Interface
OSMs/ESMs have an RS-232 interface that is used for firmware updates.
in 5 SG
DSR Pin 6
in 1
in 4 DTR
in 2 RD
in 3 TD
RTS Pin 7
CTS Pin 8
Pin 9
Figure 21: Pinout
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