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ETSI/ANSI Terminology

ETSI/ANSI Conversion and Equivalent Terms

Table 3	ETSI / ANSI Terminology , continued

ETSI Term		ANSI Term

MS-RDI		Line FERF / RDI-L
Multiplexer Section Overhead		Line Overhead
Network Node Interface		Line Interface
OOF		SEF (severely errored frame defect)
Path AIS / AU-AIS		AIS-P
Path REI / HP REI		REI-P
Path FERF / HP RDI		RDI-P
Path IEC / AU-IEC		IEC-P
Path Overhead		Path Overhead
Regenerator		Repeater
Regenerator Section (RS)		Section
Regenerator Section Overhead		Section Overhead
Remote Alarm Indicator		RAI
RS-DCC		Section DCC (DCC-S)
Section Overhead (SOH)		Transport Overhead (TOH)
S-n.1 or S-n.2 short haul		Short Reach (SR)
SOH		TOH
STM-m		OC-n / STS-n (where m= n÷ 3 for m ≥ 1
STM-0		STS-1
STM-1		OC3c / STS-3c
STM-4		OC-12 / STS-12
STM-16		OC-48 / STS-48
Tributary Unit (TU)		Virtual Tributary (VT)

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