Avaya Configuring Line Services Manual do Utilizador Página 169

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Configuring MCE1
5-35
Parameter: Line Coding
Default: HDB3
Options: AMI
| HDB3
Function: Selects a line coding method. Alternate Mask Inversion (AMI) line coding
is bipolar: a binary 0 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 MCE1 link
module remains in synchronization upon receiving up to 45 consecutive
0s.)
HDB3 (High-Density Bipolar Coding) line coding replaces a block of
eight consecutive binary 0s with an 8-bit HDB3 code containing bipolar
violations in the fourth and seventh bit positions of the substituted code.
In the receive direction, the HDB3 code is detected and replaced with
eight consecutive binary 0s.
Instructions: Specify the line coding method.
MIB Object ID: 1.3.6.1.4.1.18.3.4.8.2.1.10
Parameter: Line Type
Default: None
Options: E1
| E1 CRC | E1 MF | E1 CRC MF
Function: Specifies the frame format.
Instructions: Select the appropriate frame format for the E1 equipment.
Note that the router does not support MF framing when you enable BERT
mode.
MIB Object ID: 1.3.6.1.4.1.18.3.4.8.2.1.9
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