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Installation and commissioning of the modems and routers
5.7 Analog dial-up modem MD3
Figure 5-38
Note the information in the above figure to ensure problem-free commissioning.
Note
Any TIM with an RS-232 interface can be used, in other words, the TIM 3V-IE variants, the
TIM 4R-IE and all TIM 4 types.
Connecting several MD3s with a TIM over the RS-485 interface
Several MD3 modems can be connected to a TIM over the RS-485 interface. This type of
interconnection is necessary when several dedicated lines need to come together on one
TIM; in other words when connecting a star-shaped network. The following figure shows this
configuration with standard components.
208
Connecting an MD3 to a TIM over RS-232, 2-wire end point variants
SINAUT ST7 station control system
System Manual, 09/2016, C79000-G8976-C178-10
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