Siemens SIMATIC NET SINAUT ST7 System Manual page 76

Station control system
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Introduction to the SINAUT ST7 system
2.7 Radio clock components
Figure 2-19
The following figure shows the interconnection of the various DCF77 components (the
adapter cable 6NH7700-0AD15 is supplied with each TIM with an integrated DCF77 radio
clock receiver).
If lightning protection 6NH9831-2AA is used, this should be installed whenever possible at
the entrance to the building. To connect the lightning protection to the adapter cable of the
TIM, use a separate antenna cable (BNC female connectors at both ends, similar to the
antenna cable supplied with the indoor or outdoor antenna). You can either assemble this
cable yourself or purchase it from a dealer, for example from Hopf Elektronik GmbH
(www.hopf.com).
76
Examples of DCF77 antennas, left an indoor antenna, right an outdoor antenna
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06

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