Campbell TDR100 Manual de instrucciones Pagina 22

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TDR100
16
from voltage surge damage. Figure 5-3 describes typical signal attenuation
from the common to one output channel for frequency range important for
TDR measurements.
100 1
.
10
3
1.4
1.2
1
0.8
0.6
0.4
0.2
0
Frequency (MHz)
SDMX50 attenuation (dBm)
FIGURE 5-3. SDMX50 signal attenuation.
Each of the eight ports can be connected to a probe or another multiplexer (see
Figure 5-1).
The multiplexers use synchronous communications and require address
coordination with the datalogger. See Section 5.5 for a discussion of SDM
communications and addressing. Figure 5-4 shows the location of jumpers
used for SDMX50 addressing.
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