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ETSI/ANSI Terminology
ETSI/ANSI Conversion and Equivalent Terms
ETSI/ANSI Conversion and Equivalent Terms
Introduction
The terminology used on the instrument display can be ETSI (SDH) or ANSI
(SONET) terminology. Refer to the table given in this appendix for an explanation
of equivalent SDH/SONET terms.
ETSI: European Telecommunications Standards Institute.
ANSI: American National Standards Institute.
Table 3 ETSI / ANSI Terminology
ETSI Term ANSI Term
AU-3 STS-1 SPE + H1, H2, H3
AU-4 STS-3c SPE + H1, H2, H3
BIP (Bit Interleaved parity) CV (Code Violation)
High Order Path (HP / HO) STS Path
I-n Intra Office, (n=STM-n level) Intermediate Reach (IR)
L-n.1 or L-n.2 long haul LR long reach
Low Order Path (LP / LO) VT Path
LP-REI REI-V
M.S.P A.P.S
Multiplexer Section (MS) Line
Multiplexer Section Protection Automatic Protection Switching
MS-AIS Line AIS / AIS-L
MS-BIP Line CV / CV-L
MS-DCC Line DCC / DCC-L
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