ADC HDSL4 Manual do Utilizador descarregar pdf (Página 23)

NOTE:

Above tests constitute acceptable test parameters for circuit turnup in accordance with ANSI Standard

T1 403 Figure 1. If these parameters are not met, the tests may be run 1 additional time. If the retest passes,

the circuit is considered acceptable for turnup. If the retest fails, sectionalization must be done to isolate the

cause of the trouble. Upon sectionalization, the above tests (span type and line code dependent) will be rerun.

PB/NB Only:

2.1 Intermittent Errors on Above Provisioning Tests

Extended tests may have to be run for test acceptance, due to intermittent errors.

Table 14: Extended Test Pattern Parameters

Test Duration and Test Errored Seconds (ES) Al-

lowed

Severe Errored

Seconds (SES) Al-

lowed

Consecutive Severe

Errored Seconds (CSES)

Allowed

5 minutes

1 in 8 (B8ZS)

3 in 24 (AMI)

All Ones (AMI and B8ZS)

0 ES 0 0

2 -15 minute QRSS (AMI and

B8ZS)

3 or less ES for each 15 minute

QRSS test

0 0

AT&T Practice ATT-TP-000-000-006

Issue 1, 08/25/06

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