Phoenix Contact 2313643, User Manual, Page: 26 / 94

PSI-MODEM-SHDSL/ETH, TC ETH EXTENDER
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PHOENIX CONTACT 104273_en_01
3.3.2 Signal form
The signal of the SHDSL transmission is not continuous and very similar to a noise signal.
Transferred data cannot be recorded by an analyzer.
Figure 3-7 SHDSL signal
Frequency spectrum
The spectrum of the SHDSL signals reaches about 2 MHz at maximum. The lower the data
transmission rate, the narrower the spectrum.
Figure 3-8 Frequency spectrum at 15320 kbps (200 kHz/div)
Figure 3-9 Frequency spectrum at 64 kpbs (200 kHz/div)