Analog And Digital Transmission Path - Siemens SWT 3000 Equipment Manual

Functional Description
2.5 Possible Ways of Using the SWT 3000
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 8:
Direct fiber-optic connection between 2 SWT 3000 devices
The SWT 3000 protection signaling incorporates an internal fiber-optic module for long-distance transmission.
The maximum distance between 2 SWT 3000 devices is < 150 km (depending on the optical attenuation).
Example 9:
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.
Direct fiber-optic connection between 2 SWT 3000 devices
The SWT 3000 protection signaling incorporates an internal fiber-optic module for long-distance transmission.
The maximum distance between 2 SWT 3000 devices is < 150 km (depending on the optical attenuation).
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.
Example 10:
Fiber-optic connection between SWT 3000 and a Multiplexer supporting IEEE C37.94
A short-distance connection of up to approx. 2 km between an SWT 3000 and a multiplexer that supports the
optical protocol IEEE C37.94 can be realized via an integrated fiber-optic module of specific type.

Analog and Digital Transmission Path

2.5.3
[dwanditr-211011-01.tif, 3, en_US]
Figure 2-6
DLE Digital line equipment module
CLE Copper line equipment module
CSPi Central signal processing unit
PDH Plesiochronous digital hierarchy
SDH Synchronous digital hierarchy
MUX Multiplexer
46
Examples for Using Analog and Digital Transmission Path
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
C53000-G6040-C605-1, Edition 03.2020