This allows the digitizer to synchronize other digitizers or events. The commands used to output the arm signal are:

OUTPut:EXTernal[1]:FEED <source >

<source > = "ARM[:STARtSEQuence[1]]"

The "Ext 1" BNC port goes low when the arm occurs.

<source > = "RFTRigger"

Outputs the arm signal to the "Ext 1" BNC port after the specified arm delay has occurred.

OUTPut:ECLTrg<n >:FEED <source >

<source > = "EXTernal[1]"

Outputs the same signal currently specified by the OUTPut:EXTernal[1]:FEED command, however, with the polarity inverted.

OUTPut:TTLTrg<n >:FEED <source >

<source > = "ARM[:STARtSEQuence[1]]"

Outputs the arm signal to the specified TTLTRG trigger line as it is received.

Chapter 3

Understanding the HP E1429 Digitizer 119

Page 119
Image 119
HP E1429A manual OUTPutEXTernal1FEED source