a)
One path via digital network; second path via 4-wire (or 2-wire)
b)
One path via power line and fiber optic; second path via fiber optic and digital network
Example 11:
SWT 3000 digital connections
The digital interface allows the transmission of the protection signals over a PDH or SDH network.
Alternative transmission routes
SWT 3000 enables transmission of protection signals via 2 different routes. Both routes are constantly used. If
one route fails, the second route immediately takes over without any loss of time.
Example 12:
Fiber-optic connections between SWT 3000 and PowerLink
A short-distance connection between an SWT 3000 and Siemens PowerLink PLC terminal can be realized via an
integrated fiber-optic module. In this case, an SWT 3000 stand-alone system provides the same advanced
functionality as the version integrated into PowerLink. Each PowerLink can be connected to 2 SWT 3000
devices via fiber-optics.
Alternative transmission routes
SWT 3000 enables transmission of protection signals via 2 different routes. Both routes are constantly used. If
one route fails, the second route immediately takes over without any loss of time.
Fiber-optic connection between SWT 3000 and a Multiplexer
A short-distance connection of up to 3 km between an SWT 3000 and a multiplexer can be realized via an inte-
grated C37.94 fiber-optic module.
Integrated Into the PowerLink PLC System
[dwintplc-211011-01.tif, 2, en_US]
Figure 2-7
Examples of Integrated SWT 3000
a)
Power line
b)
One path via power line; second path via digital network.
2.5.4
Functional Description
2.5 Possible Ways of Using the SWT 3000
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
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