Keysight M9502A, Руководство пользователя

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Keysight M9502A/M9505A AXIe Chassis User Guide 79
Chassis Synchronization and Triggering Features and Functions
Trigger Resources
The primary AXIe trigger resource is the Crosspoint Switch. It allows any trigger
input to be connected to any trigger output.
Trigger Inputs
There are many inputs to the Crosspoint Switch. Any input can
be connected to one or more trigger outputs. The inputs include:
- An external trigger (
TRIGGER IN
) applied at the ESM’s front panel SMA
connector
-
Any of the 12
TRIG
signals. As these lines are bidirectional, any AXIe module
can source a trigger via the backplane using them. E-keying is used to
manage traffic on the parallel trigger bus.
-
Any of the (two to five)
STRIG
signals. As these lines are bidirectional, any AXIe
module can source a trigger via the backplane using them.
- Any of the four event Flag signals (
MULTIFRAME INPUT Flags 1 through 4
) from
the lower chassis connector
-
A MultiFrame SYNC signal (
MULTIFRAME INPUT SYNC
) from the lower chassis
connector
- A MultiFrame
RUN
Signal from the lower or upper chassis connector
Trigger Outputs
From the diagram, note that the ESM can output six types of
trigger signal:
- From the chassis backplane
–
TRIG
–
STRIG
–
SYNC
- From the ESM front panel
–
TRIGGER OUT
(SMA connector to any instrument)
–
MultiFrame Out Flags
1 through 4 (MultiFrame to upper chassis)
–
MultiFrame Out SYNC
(MultiFrame connector to upper chassis)
Each type of trigger output signal is explored in detail, after a closer look at the
Crosspoint Switch.