Siemens SINAUT ST7 System Manual page 152

Installing and putting a TIM into operation
4.3 Design of the TIM 3 and TIM 4 modules
If an MD2 or MD3 dedicated line modem is connected to the X1 connector, it is possible to
operate several of these dedicated line modems connected in parallel over this connector
(the port must then be switched to RS-485 functionality). This allows a dedicated line star
network to be connected to the X1 connector. For more detailed information, refer to the
sections with the network examples.
The following figures show how the connecting cables listed above are assembled.
Figure 4-18
Figure 4-19
152
Assembly of the standard connecting cable 6NH7701-4AL
Assembly of the standard connecting cable 6NH7701-4DL
System Manual, 07/2009, C79000-G8976-C178-07
Station control system