ADTRAN MX3216 System Manual page 139

Table 6-49. DS1 Port Test Menu Options (Continued)
Option Description
5 CSU LB w/ Pattern
6 NIU Loopback
7 NIU LB w/ Pattern
8 Pattern Test
61189008L1-1B
Section 6, User Interface - Menu Descriptions
Function
This test sends CSU loop up commands towards the
DSX-1 line and sends a test pattern using the
internal BERT.
This test sends NIU loop up commands towards the
DSX-1 line.
This test sends NIU loop up commands towards the
DSX-1 line and sends a test pattern using the
internal BERT.
This test sends a test pattern using the internal
BERT.
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