Avaya Configuring WAN Lines Services Manual do Utilizador Página 320

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Configuring WAN Line Services
A-26
308648-14.00 Rev 00
Parameter: Line Coding
Path: MCE1 Connector > Edit Logical Lines > Port Details > MCE1 Port Parameters
Default: HDB3
Options: AMI
|
HDB3
Function: Specifies a line-coding method. 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 synchronized upon receiving
up to 45 consecutive zeros.)
HDB3 line coding maintains sufficient 1s density in the E1 data stream. It
replaces a block of eight consecutive binary zeros 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 zeros.
Instructions: Select the line-coding method.
MIB Object ID: 1.3.6.1.4.1.18.3.4.9.4.1.7
Parameter: Setup Alarm Threshold (seconds)
Path: MCE1 Connector > Edit Logical Lines > Port Details > MCE1 Port Parameters
Default: 2 seconds
Options: 2 to 10 seconds
Function: Specifies the time, in seconds, that MCE1 tolerates a performance defect or
anomaly. If the performance defect or anomaly is still present when this time
interval expires, MCE1 records a performance failure and logs an event
message.
Instructions: Set the timer value.
MIB Object ID: 1.3.6.1.4.1.18.3.4.9.3.1.7
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