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SONET_Usr.bk Page 90 Wednesday, December 13, 2000 11:11 AM
Selecting Test Features - SONET Operation
Adding Pointer Adjustments
Pointer Sequence
T1.105 A1 SINGLE
GR-253 5-29
T1.105 A2 BURST OF
3
GR-253 5-30
T1.105 A3 PHASE
TRANSIENT
GR-253 5031
T1.105 A4 PERIODIC
NORMAL (87-3
Pattern)
GR-253 5-33(b)
T1.105 A4 PERIODIC
NORMAL
(Continuous Pattern)
GR-253 5-34(b)
90
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T1.105 A4 and A5, 87-3 Pattern
Pointer Adjustment
87
An Example of a Pointer Sequence
Periodic Single adjustments, all of the same polarity which is selectable.
Separation between pointer adjustments is fixed at approximately 30 seconds.
Periodic bursts of 3 adjustments, all of the same polarity which is selectable.
The interval between bursts is fixed at approximately 30 seconds. The interval
between adjustments within a burst is set to the minimum.
Phase transient pointer adjustment burst test sequence. All adjustments are of
the same polarity, which is selectable. The interval between bursts is fixed at
30 seconds. Each burst consists of 7 pointer movement. The first 3 in each
burst are 0.25 s apart, and the interval between the 3 and 4 movement, and
each remaining movement 0.5 seconds.
An 87-3 pattern is selected. The sequence pattern is 87 pointer movements
followed by 3 missing pointer movements. Pointer polarity is selectable and
the time interval between pointer adjustments settable.
Provides a continuous sequence of pointer adjustments. The polarity of the
adjustments is selectable, and the time interval between adjustments can be set
(see Note 1).
No Pointer
Adjustment
3
Description
Start of Next
87-3 Pattern
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