Siemens siprotec 7SA522 User Manual

3 Mounting and Commissioning
398
7SA522 Manual
C53000-G1176-C155-3
O p t i c a l F i b r e s
WARNING!
Warning of laser rays!
Non-observance of the following measure can result in death, personal injury or sub-
stantial property damage.
Do not look directly into the fibre-optic elements, not even with optical devices! Laser
Class 3A according to EN 60825-1.
For the protection data communication, refer to the following section.
Signals transmitted via optical fibres are unaffected by interference. The fibres guar-
antee electrical isolation between the connections. Transmit and receive connections
are identified with the symbols for transmit and
for receive.
The idle state for the optical fiber interface is “Light off”. If the idle state is to be
changed, use the operating program DIGSI
®
, as described in the SIPROTEC
®
4
System Description, Order No. E50417-H1176-C151.
3.2.2 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,
Directly
WARNING!
Warning of laser rays!
Non-observance of the following measure can result in death, personal injury or sub-
stantial property damage.
Do not look directly into the fibre-optic elements, not even with optical devices! Laser
Class 3A according to EN 60825-1.
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. Important is the visual check of
assignment of the transmitter and reception channels.
If using more than one device, the connections of all protection data interfaces are
checked according to the topology selected.

Siemens siprotec 7SA522 Specifications

General

Brand	Siemens
Model	siprotec 7SA522
Category	Protection Device
Language	English