Avaya Configuring Line Services Manuel d'utilisateur Page 232

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Site Manager Line Services Parameters
114078 Rev. A A-45
Parameter: Line Type
Path: MCE1 Connector > Edit Logical Lines > Port Details > MCE1 Port Parameters
Default: E1
Options: E1
| E1 CRC | E1 MF | E1 CRC MF
Function: Specifies the framing format.
Instructions: Select the appropriate frame format for your E1 equipment.
MIB Object ID: 1.3.6.1.4.1.18.3.4.9.4.1.6
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 0s.)
HDB3 line coding maintains sufficient 1s density within the E1 data stream. It
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: Select the line coding method.
MIB Object ID: 1.3.6.1.4.1.18.3.4.9.4.1.7
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