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Hop rx (sdh), Error analysis – EXFO IQS-8100 Series Transport Blazer for IQS-600 User Manual

Page 355

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SDH Tabs

SONET/SDH Application

341

HOP RX (SDH)

HOP RX (SDH)

Press TEST, HOP, and Path (under HOP RX).

Error Analysis

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B3 (BIP-8, Bit-Interleave Parity - 8 bits): The B3 error indicates a
High Order Path parity error by performing an even-parity check
over all bits of the previous VC-N.

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HP-REI (High Order Path - Remote Error Indicator): The HP-REI
error is declared when bits 1 through 4 of the G1 byte contain one
pattern from the following binary range: “0001” through “1000” (1
to 8) (located in every STM-1 of an STM-n signal).