Multi-Tech Systems MVP-410ST/810ST, MVP-130/130FXS, MVP-2410/3010 manual 165, AMI / HDB3

MultiVOIP User Guide Technical Configuration (T1/E1)

E1 Parameter Definitions (cont’d)

Field Name	Values	Description
Line Build Out	0 dB, -7.5 dB,	To reduce the crosstalk on
	-15 dB, -22.5 dB	received signals, a transmit
		attenuator can be placed in the
		data path. Transmit attenuation
		is selectable. Default: O dB
Pulse Shape	0 to 40 Meters	Refers to length of cable
Level	40 to 81 m	between MultiVOIP and
	81 to 122 m	PBX/telco in meters. Most
	122 to 162 m	common will be 0 to 40m.
	162 to 200 m
Clocking	External/Internal	Set opposite to telco/PBX
		setting. Example: if telco
		clocking internal, set VOIP
		clocking as external.
Line Coding	AMI / HDB3	Match to PBX or telco.
PCM Law	A-Law/Mu-Law	Match to PBX or telco.
		“A-law” is analog-to-digital
		compression/expansion
		standard used in Europe.
		“Mu-law” is North American
		standard.

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