Avaya Configuring WAN Line Services Manual de usuario Pagina 253

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Site Manager WAN Line Services Parameters
117345-B Rev. 00
A-45
Parameter: Line Coding
Path: FT1 Connector > Edit Logical Lines > Port Details > FT1 Port Parameters
Default: B8ZS
Options: AMI
|
B8ZS
Function: Specifies a line-coding method. B8ZS line coding replaces a block of eight
consecutive binary zeros with an 8-bit B8ZS code containing bipolar violations
in the fourth and seventh bit positions of the substituted code. In the receive
direction, the B8ZS code is detected and replaced with eight consecutive
binary zeros.
AMI line coding is also bipolar: a binary zero is transmitted as zero volts, and a
binary 1 is transmitted as either a positive or negative pulse, opposite in polarity
to the previous pulse. (When configured for AMI line coding, the FT1 link
module remains synchronized upon receiving up to 45 consecutive zeros.)
Instructions: Select the line-coding method.
MIB Object ID: 1.3.6.1.4.1.18.3.4.9.4.1.7
Parameter: Signal Level (dB)
Path: FT1 Connector > Edit Logical Lines > Port Details > FT1 Port Parameters
Default: 0.0 dB
Options: -15 dB
|
-7.5 dB
|
0.0 dB
|
0.5 dB
|
0.8 dB
|
1.1 dB
|
1.5 dB
Function: Specifies the T1 transmit power level, in decibels (dB).
The DS1 values of -15 and -7.5 dB are long-haul; the carrier determines these
values if 0.0 dB is not sufficient.
The DSX1 values of 0.0, 0.5, 0.8, 1.1, and 1.5 dB are short-haul; they
correspond to the cable length as follows:
0.0 dB -- 0 to 133 ft.
0.5 dB -- 133 to 255 ft.
0.8 dB -- 255 to 399 ft.
1.1 dB -- 399 to 533 ft.
1.5 dB -- 533 to 655 ft.
Instructions: Specify the decibel level based on the length of the cable or as the carrier
specifies.
MIB Object ID: 1.3.6.1.4.1.18.3.4.9.3.1.6
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