Siemens SIPROTEC 5 Hardware Description Manual page 21

6.6 Communication Interfaces
User Interface, Front Side
You can find a USB connection of type B for the connection to a laptop computer or to a PC on the front side of
the device. A protection cover protects this USB connection against pollution and humidity.
USB
Connection
Insulation class
Time-Synchronization Interface (Port G)
The terminal for time synchronization is located on the D-sub 9 interface (position G). Time synchronization
signals for DC 5 V, DC 12 V, and DC 24 V can be processed as an option.
Time Synchronization
Connection
Rated signal voltages
Test voltage
Insulation class
Max. line length
Table 6-4
Pin
1
2
3
4
5
6
7
8
9
22 Only for the PPS signal (GPS)
SIPROTEC 5, Hardware Description, Manual
C53000-G5040-C002-F, Edition 06.2019
User interface
USB type B
PELV (Protective Extra Low Voltage) (according to IEC 60255-27)
External synchronization sources, for example, DCF77
IRIG B signal
Rear
D-sub 9
DC 5 V, DC 12 V, or DC 24 V (optional)
AC 500 V at 50 Hz
SELV (according to IEC 60255-27)
10 m (0.39 in)
Time-Synchronization Connection
Signal
P24-TSIG
P5-TSIG
M-TSIG
22
M-TSYNC
Screen
–
P12-TSIG
P-TSYNC
Screen
6.6 Communication Interfaces
Signal Description
DC 24 V input
DC 5 V input
Return line Pxx-TSIG
Return line for P-TSYNC
Shield potential
–
DC 12 V input
DC 24 V input
Shield potential
Technical Data
217