Multi-Tech Systems MULTIVOIP MVP-2410 - Manual (Page 157)

MultiVOIP User Guide Technical Configuration (Digital Voips)
157
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.