Installation and Commissioning
8-44 7SA6 Manual
C53000-G1176-C156-2
8.2.2 Checking the Protection Data Communication
If the device features protection data interfaces for digital communication links, the
transmission way must be checked. The protection data communication is conducted
either directly from device to device via optical fibres or via communication converters
and a communication network or a dedicated transmission medium.
Optical fibres The direct optical fibre connection is visually controlled by means of an optical fibre
connector. There is one connection for each direction. Therefore the output of the one
device must be connected to the input of the other device and vice versa. Transmis-
sion and receiving connections are identified with the symbols for transmit
and for receive. The visual check of the assignment of the transmission and
receive channels is relevant.
If using more than one device, the connections of all protection data interfaces are
checked according to the topology selected.
Communication
converter
Optical fibres are usually used for the connections between the devices and commu-
nication converters. The optical fibres such as the optical fibre direct connections are
checked.Thisiscarriedoutforeachprotectiondatainterface.
Set address
4502 CONNEC. 1 OVER (see also Section 6.4.2) to configure the correct
type of connection.
Further
connections
For further connections a visual control is sufficient for the time being. Electrical and
functional controls are done during commissioning (Section 8.3.5).
Warning!
Do not look directly into the LEDs ! Laser class 3A according to EN 60825–1.
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