Siemens SIPROTEC Manual page 527

Time synchronisation interface
It is optionally possible to process 5 V, 12 V or 24 V time synchronization signals, provided that these are con-
nected to the inputs named in the following table.
Table 3-20
Pin No.
1
2
3
4
5
6
7
8
9
1)
only for PPS signal (GPS)
Optical Fibres
WARNING!
Do not look directly into the fibre-optic elements, not even with optical devices! Laser class 1 according to EN
60825-1.
For the protection data communication, refer to the following section.
The transmission via fiber optics is particularly insensitive to electromagnetic interference and thus ensures gal-
vanic isolation of the connection. Transmit and receive connections are shown with the symbols
mit and
The character idle state for the optical fibre interface is „Light off". If the character idle state is to be changed,
use the operating program DIGSI, as described in the SIPROTEC 4 System Description.
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
D-subminiature connector assignment of the time synchronization interface
Designation
P24_TSIG
P5_TSIG
M_TSIG
1)
M_TSYNC
SHIELD
-
P12_TSIG
1)
P_TSYNC
SHIELD
for receive.
Signal Significance
Input 24 V
Input 5 V
Return line
1)
Return line
Shield potential
-
Input 12 V
1)
Input 24 V
Shield potential
Mounting and Commissioning
3.2 Checking Connections
for trans-
527