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Installing and putting a SINAUT modem into operation
6.6 Analog dial-up modem MD3
Figure 6-39
For the connection from the TIM to the first MD3, the 6NH7701-4DL standard connecting
cable is used. For the connection to the other modems, there is no preassembled connecting
cable available. These can, nevertheless, be implemented with the standard components
from the SIMATIC S7 range. The same parts can be used as when creating an MPI
connection. As cable, we recommend 6XV1830-0AH10, and as connector 6ES7972-0BA11-
0XA0. When necessary, the RS-485 terminating resistor can be activated in this connector.
290
Connecting several MD3s to one TIM over RS-485, star-shaped convergence of several
dedicated lines
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
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