HP VXI E1432A manual Managing Multiple-mainframe Measurements, Slot HP E1482B HP E1432A Contoller

HP E1432A User's Guide

Using the HP E1432A

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:

￿Unequal pre-trigger delay settings between mainframes

￿Channel triggering by channels in Mainframe B

￿Lower spans or longer blocksizes in Mainframe B

￿Different digital filter settling times between HP E1432A modules

Slot 0	HP E1482B			HP E1432A
Contoller
				(or HP E1431A)
	Fail Acs Trigger Fail		Acs Trigger
	ExSamp Cal ExTrig ExSamp Cal ExTrig
	16 CHANNEL	16 CHANNEL
	51.2 kSa/s	51.2 kSa/s
	Digitizer+DSP	Digitizer+DSP
	Chan		Chan
	1-4		1-4
	Chan		Chan
	5-8		5-8
	Chan		Chan
	9-12		9-12
	Chan		Chan
	13-16		13-16
	HP E1432A	HP E1432A		VXI Mainframe A

Fail Acs Trigger	Fail Acs Trigger
ExSamp Cal ExTrig ExSamp Cal ExTrig
16 CHANNEL	16 CHANNEL
51.2 kSa/s	51.2 kSa/s
Digitizer+DSP	Digitizer+DSP
Chan	Chan
1-4	1-4
Chan	Chan
5-8	5-8
Chan	Chan
9-12	9-12
Chan	Chan
13-16	13-16
HP E1432A	HP E1432A	VXI Mainframe B

HP E1482B	HP E1432A
	(or HP E1431A)

Figure 3-9: Multiple mainframes - two mainframes

3-11