Avaya Configuring Line Services Manual do Utilizador Página 131

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Configuring Line Services
6-6 114078 Rev. A
You can set the Line Type for this MCE1 interface.
Setting the Line Coding Method
By default, the MCE1 interface uses high-density bipolar coding (HDB3) line
coding. 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.
You can select AMI line coding method instead. 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.)
You can set the line coding for this MCE1 interface.
Setting the Alarm Threshold Time
By default, the MCE1 interface waits 2 seconds before logging a performance
defect or anomaly as an event message. You can change that time, the alarm
threshold, to any value from 2 through 10 seconds for this MCE1 interface.
Setting the Alarm Threshold Clear Time
By default, the clear time for performance failure conditions is 2 seconds. If the
defect or anomaly clears within this time interval, MCE1 records a
performance-cleared condition and logs an event message. You can change the
alarm threshold clear time to any value from 2 through 10 seconds for this MCE1
interface.
Site Manager: Line Type parameter: page A-45
Site Manager: Line Coding parameter: page A-45
Site Manager: Setup Alarm Threshold (seconds) parameter: page A-46
Site Manager: Clear Alarm Threshold (seconds) parameter: page A-46
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