Clock Synchronization; Front Panel - Siemens SWT 3000 Equipment Manual

Processing Unit Module
7.1 Functions of the PU4 module

Clock Synchronization

7.1.9
Overview
The system-internal clock of the PU4 can be synchronized by an external clock source or via the connecting
route to another SWT 3000 (Line-Clock Synchronization). For local clock synchronization one of the following
methods can be used:
•
USYNC pulse signal
•
IRIG-B signal
•
NTP synchronization

Front Panel

7.1.10
Control and display elements are mounted on the module. The front panel covers some of them.
For example, in order to prevent the unit being accidentally disconnected, the front panel covers the On/Off
switch for the power supply.
[scpu4dis-160911-01.tif, 1, --_--]
Figure 7-4
(1) PU4
The PU4 controller and hence the entire SWT 3000 unit is reset with the reset button.
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Front Panel of a Unit with Analog Line Interface, CLE, and FOM Module
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
C53000-G6040-C605-1, Edition 03.2020