Overview - Siemens PowerLink 100 Product Information

PowerLink Description in Brief

2.1 Overview

2.1

Overview

The PowerLink system permits carrier frequency transmission of speech, data, telecontrol, and teleprotection
signals via high voltage overhead power lines and cables.
Carrier frequency equipment must match the particular characteristics of the high voltage line. High interfer-
ence levels over the transmission link and the high attenuation over longer transmission routes require partic-
ularly powerful transmission. The requirements for reliability and availability are especially high in relation to
the transmission of protection signals. For the most efficient utilization of the available frequency range, a
high degree of selectivity is necessary.
In opposition to other PLC systems there is no additional hardware required for channel allocation. For the
different applications like voice, data or protection signal transmission with the SWT 3000, the equipment can
be extended by integrating modules (VFM, VFS resp. VFO) for connecting a modem or external teleprotec-
tion as well as for various telephony services.
[cdbldipl-200813-01.tif, 1, en_US]
Figure 2-1
VF Voice frequency
VFO VF interface FXO
VFS VF interface FXS
VFM VF interface E&M
X.21-x sync. digital interface
RS232 async. digital interface
aF21...5 analog voice ch. 1 to 5
BL Board Link
CFS-2 Carrier frequency section
CSPi Central Signal Processing
RXF receive filter
fE1 fractional E1 interface
22
PowerLink block diagram
Smart Communications, PowerLink 100 and PowerLink 50, Product Information
iSWT integrated SWT 3000
vMUX versatile MUX
iFSK integrated FSK channel
DP Data Pump
AGC autom. gain control
ATT attenuator
SL StationLink
PLPA PowerLink power amplifier
AMP50 power amplifier 50 W
TXF Transmit filter
E50405-U53-X-B3-7670, Edition 11.2014