Black Box 39004 Network Router User Manual


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14
T1 FIBER OPTIC LINE EXTENDER/SIMULATOR
5. Data Signals
Figure 5-1. Data Signals at Normal Mode.
Figure 5-2. Data Signals at Digital Loop Mode.
Distant fiber optic modem
Local fiber optic modem
in normal mode
Local fiber optic modem
in digital loop mode
Distant fiber optic modem
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