User`s guide

1-111
Making Measurements
Using Test Sequencing
TTL Out Menu The softkey provides access to the TTL out menu. This menu
allows you to choose between the following output parameters of the TTL output signal:
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The TTL output signals are sent to the sequencing BNC rear panel output.
Sequencing Special Functions Menu
This menu is accessed by pressing the softkey in the Sequencing
menu. This menu provides access to the decision making menu and the more special
functions menu. It also contains the peripheral GPIB address and titling, wait x, pause,
and marker → CW functions.
Sequence Decision Making Menu
This menu is accessed by pressing the softkey in the Sequencing
Special Functions menu.
Decision making functions are explained in more detail in the following section. These
functions check a condition and jump to a specified sequence if the condition is true. The
sequence called must be in memory. A sequence call is a one-way jump. A sequence can
jump to itself, or to any of the other five sequences currently in memory. Use of these
features is explained under the specific softkey descriptions.
Pin 16 NC
Pin 17
Same as Limit Test output BNC connector
Pin 18
Ground
Pin 19
NC
Pin 20 NC
Pin 21 Ground
Pin 22
TESTSET I/O Bit 0 (least significant bit). +5 V when TESTSET I/O has values of 1, 3, 5, or
7. Otherwise, bit is TTL low.
Pin 23
TESTSET I/O Bit 1 (middle bit). +5 V when TESTSET I/O has values of 2, 3, 6, or 7.
Otherwise, bit is TTL low.
Pin 24
Lremtrig: TTL low when TEST- SET I/O pins are valid. This bit can be used to latch these
values.
Pin 25
NC
Table 1-5 Test Set Interconnect Pin Designation
Pin Number Pin Description
TTL OUT
TTL OUT HIGH
TTL OUT LOW
END SWEEP HIGH PULSE
END SWEEP LOW PULSE
SPECIAL FUNCTIONS
DECISION MAKING