Radio Clock Components; Accessories For Dcf77; Table 2-4 Adapter Cable For A Tim With Integrated Dcf77 Radio Clock - Siemens SIMATIC NET SINAUT ST7 System Manual

2.7

Radio clock components

2.7.1

Accessories for DCF77

DCF77 radio clock
An adapter cable is required to connect the DCF77 radio clock to an indoor or outdoor
antenna. The cable has a BNC male connector to which the normal antenna cable can be
connected.
The adapter cable is supplied with every TIM module with an integrated DCF77 radio clock.
It can also be ordered as a spare part under the number listed in the following table.
Table 2-4
Order no.
6NH7700-0AD15
In addition to the adapter cable, there is also a selection of antennas.
DCF77 indoor antenna
An indoor antenna can be used in buildings in which there is no source of interference for the
DCF77 signal. It should not be installed in the vicinity of televisions, monitors, thyristor
controls, network cables or fluorescent lights.
DCF77 outdoor antenna for flat roof, wall or mast installation
Whenever possible, a professional radio clock system should use an outdoor antenna. In
contrast to an indoor antenna whose environment can change constantly due to the
technical activity in the building, the conditions for an outdoor antenna are practically
constant. Indirect lightning protection is strongly recommended for an outdoor antenna.
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
Adapter cable for a TIM with integrated DCF77 radio clock
Description
Adapter cable for connecting a DCF77 radio
clock integrated in a TIM, to adapt the internal
connector to the external BNC connector.
Cable length 1.5 m
Introduction to the SINAUT ST7 system
2.7 Radio clock components
Illustration
75