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Selecting Test Features
T1.105/GR-253 Pointer Sequences Explained
T1.105/GR-253 Pointer Sequences
Explained
In addition to the BURST, NEW POINTER and OFFSET pointer
movements described, the HP 37717C can also generate pointer
sequences (pointer movements) according to T1.105.03 and GR-253.
Before running a pointer sequence you can elect to run an initialization
sequence, followed by a cool down period, and then run the chosen
sequence. This is selected using the START INIT softkey shown in the
display on the previous page. Initialized pointer sequences are made up
of three periods: the Initialization Period, the Cool Down Period, and the
Sequence (Measurement) Period, an example is given in the following
figure:
Note: SINGLE (A1), BURST (A2) and PHASE TRANSIENT(A3) are Non
Periodic Sequences.
Initialization Period
For SINGLE A1, BURST A2 and PHASE TRANSIENT A3 sequences the
initialization sequence consists of 60 seconds of pointer adjustments
applied at a rate of 2 adjustments per second and in the same direction
as the specified pointer sequence.
Cool Down Period
A period following the initialization period which for SINGLE e), BURST
f) and PHASE TRANSIENT sequences is 30 seconds long when no
pointer activity is present.
Initialization Sequence
Non Periodic Sequence
Periodic Sequence
No Pointer Activity
Initialization
Continuous Sequence
Sequence
Time
Cool Down
Measurement
Period
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