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Channel triggering by channels in mainframe b, Lower spans or longer blocksizes in mainframe b, Figure 4-1: multiple mainframes - two mainframes – HP VXI E1432A User Manual

Page 89: Or hp e1431a)

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Managing Multiple-mainframe Measurements

In a single mainframe measurement, the HP E1432A communicates with
other HP E1432As through the TTLTRG lines. However, when using the
VXI-MXI bus extender modules, the TTLTRG lines, which carry the group
synchronization pulse and sample clock, are extended only in one direction.
This unidirectional signal connection restricts the types of measurements
you can make in a multiple mainframe environment.

You cannot perform the following types of multiple mainframe measurements:

q

Unequal pre-trigger delay settings between mainframes

q

Channel triggering by channels in Mainframe B

q

Lower spans or longer blocksizes in Mainframe B

q

Different digital filter settling times between HP E1432A modules

Digitizer+DSP

51.2 kSa/s

16 CHANNEL

ExSamp

ExTrig

Cal

Fail Acs

Trigger

5-8

1-4

Chan

Chan

Chan

Chan

9-12

13-16

Digitizer+DSP

51.2 kSa/s

16 CHANNEL

ExSamp

ExTrig

Cal

Fail Acs

Trigger

5-8

1-4

Chan

Chan

Chan

Chan

9-12

13-16

Digitizer+DSP

51.2 kSa/s

16 CHANNEL

ExSamp

ExTrig

Cal

Fail Acs

Trigger

5-8

1-4

Chan

Chan

Chan

Chan

9-12

13-16

Digitizer+DSP

51.2 kSa/s

16 CHANNEL

ExSamp

ExTrig

Cal

Fail Acs

Trigger

5-8

1-4

Chan

Chan

Chan

Chan

9-12

13-16

(or HP E1431A)

(or HP E1431A)

HP E1432A

HP E1432A

HP E1482B

HP E1482B

Slot 0

Contoller

VXI Mainframe A

VXI Mainframe B

HP E1432A

HP E1432A

HP E1432A

HP E1432A

Figure 4-1: Multiple mainframes - two mainframes

HP E1432A User's Guide
The C-Language Host Interface Library

4-14

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