ADTRAN 1200218L1, User Manual

Page: 85 / 122

Chapter 6. Diagnostics
61200663L1-1 OSU 300 User Manual 6-13
of using data from the host, this test uses data generated by the
OSU 300’s internal test pattern generator and detector.
Figure 6-18. BERT Pattern Menu
Invert Pattern
If set to E
NABLE
, the OSU 300 inverts the transmitted and received
BERT test pattern. This allows the unit to be compatible with test
equipment which generates inverted BERT patterns.
BERT Information Fields
The following five fields provide information about the most
recently issued BERT test. These fields appear in the main
D
IAGNOSTICS
menu (shown in Figure 6-1 on page 6-2).
Port
Displays which port is transmitting and receiving the BERT
pattern.
Direction
Displays the direction in which the BERT pattern is being sent.
State
Displays either S
YNC
or N
O
S
YNC
to indicate whether the unit is in
sync with the BERT pattern.