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Making Measurements
Measuring Pointer Adjustment (Tributary) Jitter
HOW TO:
1 Connect the OmniBER to the Network Element as shown in the previous Figure.
Ensure the OmniBER and the NE are synchronized.
2 Select the
AND RECEIVER
3 Select
SIGNAL rate (140, 34, 8 or 2 Mb/s plus DS1 or DS3).
4 On the same page set the required test pattern from the PATTERN field.
5 On the
(the rates available depend on the options fitted to your instrument). In this
example we have selected STM-16 OPT.
6 On the same page, now set the Transmitter PDH payload offset (140M OFFSET
field in figure below) to any in-range value.
7 Select
8 Setup and run pointer sequence A (see page 87 for information on the pointer
sequences available). When the pointer sequence initialization and cool-down
periods are finished and the display indicates "POINTER SEQUENCE - IN
PROGRESS" proceed to step 9.
150
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OTHER
SETTINGS CONTROL
INDEPENDENT
,
MAIN SETTINGS
RECEIVE
,
SDH
TRANSMIT
,
,
SDH
TRANSMIT
,
.
ADJUST PTR
page and choose TRANSMITTER
.
,
and select a PDH/DSn
PDH/DSn
page select a SIGNAL rate
MAIN SETTINGS
, then select
TEST FUNCTION
,
SDH
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