
Site Manager Parameters
308648-14.00 Rev 00
A-59
Parameter: Line Coding
Path: FE1 Connector > Adapter Module FE1 Logical Lines > Port Details > Edit
Adapter Module FE1 Port Parameters
Default: For MCT1: B8ZS
For MCE1 and FE1: HDB3
Options: For MCT1: AMI
|
B8ZS
For MCE1 and FE1: 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 MCT1, MCE1, or E1/FE1 module remains synchronized
upon receiving up to 45 consecutive zeros.)
For MCT1, B8ZS (Bipolar with 8-Zero substitution) line coding replaces a
block of 8 consecutive binary zeros with an 8-bit B8ZS code containing bipolar
violations in the 4th and 7th bit positions of the substituted code. In the receive
direction, the B8ZS code is detected and replaced with 8 consecutive binary
zeros.
For MCE1 and FE1, 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
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