4-1
Installation
ETSI/ANSI Conversion and Equivalent Terms
4 Terms
This section contains Tables of ETSI Terms with their ANSI equivalents and current
terms with their equivalent earlier 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 chapter for an explanation of
equivalent SDH/SONET terms.
ETSI: European Telecommunications Standards Institute.
ANSI: American National Standards Institute.
Table 1 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