Verilink AS56/56Plus (896-502588-001) Product Manual - Manual (Page 57)

Testing in T1/FT1 Mode
AS56 and AS56 Plus User Manual 4-3
Payload BERT The Payload BERT is useful in a point-to-point environment. The Access
System 56 units at both ends of the circuit must be placed in a Payload
BERT condition with the same BER pattern.
SELECT as required to choose the desired Bit Error Rate pattern of 2047,
1 of 8, 3 of 24, or All Ones.
If the BER pattern was changed in the previous step, the BERT must be
turned OFF and back ON again to establish the new pattern.
SELECT as
required to turn the BERT Off/On.
If the CSU portions of the Access Syste m56 units and the data link are all
functioning properly, the Seconds/Test at both units will increment while
the Errored Seconds at both units will not increment.
WHEN TESTING IS COMPLETED, BE SURE TO TURN BOTH BERT
TESTS “OFF”.
Diagnostics
_Ntwk Port
From Diag. Menu,
UP/DOWN to
display:
NI Diagnostics
Tst Pat._XXX
SELEC , then
DOWN to
display:
NI Diagnostics
BERT......:_On
DOWN and SELECT
as required to
display:
NI Diagnostics
Sec/Test.:_00000
DOWN and SELECT
as required to
display: