ADTRAN Quad T1 IMA Manual

A SERVICE OF

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Total Access 1248 Quad T1 IMA 48-Port DSLAM with Modem Installation and Maintenance Practice

5-122 61179641AL1-5C

IMA Scrambler Menu

IMA Scrambler

Main Menu\Network Port\IMA Main Menu\IMA Provisioning\IMA Scrambler\

The IMA Scrambler menu (see Figure 5-84) is used to enable or disable scrambling. Scram-

bling is designed to randomize the pattern of 1s and 0s carried in ATM cells. Randomizing the

digital bits can prevent continuous, non-variable bit patterns (i.e., long strings of all 1s or all

0s). Several physical layer protocols rely on transitions between 1s and 0s to maintain

clocking.

Figure 5-84. IMA Scrambler Menu

The IMA Scrambler menu options are shown in Table 5-86.

Table 5-86. IMA Scrambler Menu Options

Option Description Function

1 Enable This option enables scrambling.

2 Disable This option disables scrambling.

TID: TA1248 Total Access 1248 MM/DD/YY HH:MM

Unacknowledged Alarms: None

IMA Scrambler: Disabled

1. Enable

2. Disable

Selection :

'?' - System Help Screen