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SONET_Usr.bk Page 91 Wednesday, December 13, 2000 11:11 AM
Pointer Sequence
GR-253 5-32(b)
PERIODIC NORMAL
(26-1 Pattern)
T1.105 A5 PERIODIC
ADD (87-3 Pattern)
GR-253 5-33(c)
T1.105 A5 PERIODIC
ADD (Continuous
Pattern)
GR-253 5-34(c)
GR-253 5-32(c)
PERIODIC ADD (26-1
Pattern)
T1.105 A5 PERIODIC
CANCEL (87-3
pattern)
GR-253 5-33(d)
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Selecting Test Features - SONET Operation
Adding Pointer Adjustments
This selection is only available if you have selected VT1.5 mapping. The
sequence pattern is 26 pointer movements followed by 1 missing pointer
movement. Pointer polarity is selectable and the time interval between pointer
adjustments programmable to 200 ms, 500 ms, 1 s, 2 s, 5 s or 10 seconds.
An 87-3 pattern is selected. The sequence pattern is 87 pointer movements
followed by 3 missing pointer movements with an added pointer movement
after the 43rd pointer. The spacing between the added adjustment and the
previous adjustment is set to the minimum. Pointer polarity is selectable. The
time interval between pointer adjustments can be set (see Note 1). Added
adjustments occur every 30 seconds or every repeat of the 87-3 pattern,
whichever is longer.
Periodic Single adjustments, with selectable polarity and added adjustment (1
extra). The spacing between the added adjustment and the previous adjustment
is set to the minimum, (see Note 2). The time interval between pointer
adjustments can be set (see Note 1). Added adjustments occur every 30
seconds or every repeat of the 87-3 pattern, whichever is longer.
This selection is only available if you have selected VT1.5 mapping. The
sequence pattern is 26 pointer movements followed by 1 missing pointer
movement. The added adjustment occurs 2 ms after the 13th pointer
adjustment. Pointer polarity is selectable and the time interval between pointer
adjustments programmable to 200 ms, 500 ms, 1 s, 2 s, 5 s or 10 s. Added
adjustments occur every 30 seconds or every repeat of the 26-1 pattern,
whichever is longer.
An 87-3 pattern is selected. The sequence pattern is 87 pointer movements
followed by 3 missing pointer movements with a cancelled pointer movement
at the 87th pointer. Pointer polarity is selectable, and the time interval between
pointer adjustments can be set (see Note 1). Cancelled adjustments occur
every 30 seconds or every repeat of the 87-3 pattern, whichever is longer.
Description
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