
Configuring Line Services
5-8
Parameter: Enable/Disable
Default: Enable
Options: Enable
| Disable
Function: Enables or disables the MCE1 port.
Instructions: Set to Disable only if you want to disable the MCE1 port.
MIB Object ID: 1.3.6.1.4.1.18.3.4.9.3.1.2
Parameter: Line Type
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
Default: HDB3
Options: T34AMI
| 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 (High-Density Bipolar Coding) 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: Specify the line coding method.
MIB Object ID: 1.3.6.1.4.1.18.3.4.9.4.1.7
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