Telecommunications Techniques Corporation interceptor 147, Reference Manual, Page: 109 / 280

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4
Test Results
INTERCEPTOR 147 2 Mbit/s and Data Analyzer
CRC MF Wrd
The CRC MF Wrd (CRC Multiframe Word) result
indicates the values received in the Bit 0 position of
the eight consecutive NFAS words in a multiframe.
The format for the CRC MF Word result is 001011ii,
where:
001011 The CRC Multiframe Alignment
Signal. If an X appears in place of any
of the bit positions, it indicates an
error in the indicated bit position.
ii International bits. The values that
appear in these bit positions will
depend on the application.
REBEs
The Remote End Block Errors (REBEs) result
indicates the number of Remote End Block Errors
detected while in CRC-4 multiframe alignment with
REBEs turned on. The REBEs result is only valid for
2 Mbit/s modes with CRC set to ON.
Sa6Bits
The Sa6Bits result displays the Sa6 loop code bits.
The Sa6 messages are applicable to 2M framed, 2M
Voice, 2M Nx64k/56k, 2M Mx64k/56k, and 2M 64k/
56k setups. The four Sa6 bits represent specific
network conditions, as follows:
0000 No loop backs selected
1110, 0111, NTPM frame sync loss
0001, 0010, NTPM power loss
0100, or 1000
1111
NTPM AIS