Equipment Versions
Overview
Equipment is available in broadband and narrow-band versions depending on the application.
Broadband Version
Application
This equipment version is intended for operation over all communication
paths (4-wire connection), preferably over PLC links. It offers a high level of
security against impulse interference and disturbance voltages.
Frequency space
In this equipment version, the desired frequencies are distributed over the
complete available frequency space. With PLC, transmission frequency
space in the 2.5-kHz or 4-kHz channel arrangement is required for each
operating direction.
With Carrier Frequency (CF), radio relay routes, and cable connections, an
ITU-T voice band from 0.3 kHz to 3.4 kHz is used for each operating direc-
tion.
VF cable connections
The following diagram shows a 4-wire connection over a VF cable. Broad-
band variants VF1, VF1_M5A, VF3_M5A, VF1_CT, and VF3_CT can be used.
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Figure 2-1
SWT 3000 4-Wire Connection via VF Cable
VFx
Frequency variants VF1, VF1_M5A, VF3_M5A, VF1_CT, and VF3_CT can be used
T
Transmitter
R
Receiver
PLC Connections
Variants VF1, VF1_M5A, VF3_M5A, VF1_CT, and VF3_CT are used with PowerLink PLC systems depending on
the assignment of the transmission band. For more information, refer to
2.8.1 Broadband Devices in the VF
2.4
2.4.1
2.4.2
Functional Description
2.4 Equipment Versions
40
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
C53000-G6040-C605-1, Edition 03.2020
