(Digital Encoding), , . : NRZ (Non Return to Zero ) HDB3 (High Density Bipolar 3 - , 3).
NRZ RS232, Ethernet PE, HDB3 ( E1 E2). , , .
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NRZ - Non Return to Zero ( )
:
0 (0 );
1 +V.
.
RZ - Return to Zero ( )
:
0 (0 );
1 +V , .. .
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. , [2], [3], . . . : 1, 0. , 0 1. (binary digit bit). 00, 01, 10 11, 000, 001, 010, 011, 100, 101, 110, 111 . .
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