Siemens SIMATIC NET SINAUT ST7 System Manual page 258

Station control system
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Installing and putting a SINAUT modem into operation
6.4 MD2 dedicated line modem
Figure 6-22
In most cases, a repeater is placed at a location where there is also an ST7 station that
includes a TIM with an integrated MD2 modem (TIM 32 or TIM 42). For this reason, the
schematics show not only the connection of two MD2s to form a repeater but also how a TIM
32 or TIM 42 is tapped into the 2-wire or 4-wire cable at the location of the repeater.
258
Two MD2s as 4-wire repeater with simultaneous 4-wire tapping of a TIM 32 or TIM 42
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06

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