Multitech MULTIVOIP MVP-810ST Guía de usuario Pagina 165

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MultiVOIP User Guide Technical Configuration (T1/E1)
165
E1 Parameter Definitions (cont’d)
Field Name Values Description
Line Build Out 0 dB, -7.5 dB,
-15 dB, -22.5 dB
To reduce the crosstalk on
received signals, a transmit
attenuator can be placed in the
data path. Transmit attenuation
is selectable. Default: O dB
Pulse Shape
Level
0 to 40 Meters
40 to 81 m
81 to 122 m
122 to 162 m
162 to 200 m
Refers to length of cable
between MultiVOIP and
PBX/telco in meters. Most
common will be 0 to 40m.
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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