Multi-Tech Systems MVP-3010, MVP-2400, MVP-2410 manual Common will be 0 to 40m, 152

Technical Configuration (Digital Voips) MultiVOIP User Guide

T1 Parameter Definitions (cont’d)

Field Name	Values	Description
Line Build Out	0 dB, -7.5 dB,	To reduce the crosstalk on received
	-15 dB, -22.5 dB	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 / B8ZS	Match to PBX or telco.
PCM Law	A-Law/Mu-Law	Match to PBX or telco. “
		Mu-law” is analog-to-digital
		compression/expansion
		standard used in North America.
		“A-law” is European standard.
Yellow Alarm	Bit 2 / 1111…	Depending on the Frame Format
Format		used, there are choices of Yellow
		Alarm format, as follows:
		D4: -Bit2= 0 in every speech
		channel
		-FSbit of frame 12 is forced to
		one.
		ESF: -Bit2= 0 in every speech
		channel
		–1111111100000000 pattern in
		data link channel.
		Check with your PBX/telco
		administrator for the correct setting
		or use the default value (1111 … ).

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