Atec Agilent-81180A - Manual (Page 7)

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Increase your signal play time with
advanced sequencing
The closer your test signals are to the real-world situation,
the better your test results will be. A key requirement
is long signal play time, which means you need a big
memory. The 81180A offers the choice between two
Loop 1 time Loop 5,200 times Loop 1 time Loop 3,567 times
Loop 317 times
Loop 1 time Loop 45 times Loop 1 time Loop 33 times
Loop 5 times
81180A advanced sequencing is a sequence of sequences. A sequence contains
individually looped waveform segments - up to 16,000 segments can be
combined in a sequence - up to 1,000 sequences possible
In advanced sequencing scenarios you can define steps,
loops and conditional jumps of waveforms or waveform
sequences. You can set up to 1 advanced sequences per
channel. Each sequence contains up to 16,000 different
segments. Up to 1,000 sequences are possible.
With this powerful sequencer, you can easily set up
communication between ground stations and airborne
devices. After an initiation sequence, the signal can
contain separate transmission sequences followed by
different messages.
In some applications it is important to change quickly
between different waveforms to minimize reconfiguration
time. The sequencer allows you to download different
test setups into memory. It is possible to directly access
the memory via a 8-bit and 9-pin external input, which
accepts TTL signals. You can select up to 256 segments
or sequences via this dynamic segment/sequence control
input. It can act as a dynamic switch between the
sequences and segments as well.
Figure 9. Agilent 81180A sequence example
Figure 10. Agilent 81180A
sequence/segment control Input
memory sizes: 16 MSa and 64 MSa. For the best memory
usage, a sequencer helps you create versatile, unique
signals.
Agilent 81180A sequence example: