Agilent Technologies 54622A, 54624A, 54621D, 54622D, 54621A manual Set up the oscilloscope calibrator

Testing Performance

To verify digital channel threshold accuracy

1Turn on the test equipment and the oscilloscope. Let them warm up for 30 minutes before starting the test.

2Set up the oscilloscope calibrator.

a Set the oscilloscope calibrator to provide a DC offset voltage at the Channel 1 output.

b Use the multimeter to monitor the oscilloscope calibrator DC output voltage.

3Use either method 1 or method 2, described in the following, to connect the digital channels for testing.

a Method 1 — Using the Test Connector

Use the 8-by-2 test connector and the BNC cable assembly to connect digital channels D0-D7 to one side of the BNC Tee. Then connect the D0-D7 ground lead to the ground side of the 8-by-2 connector. See figure 3-2.

Figure 3-2

Oscilloscope

Calibrator

Digital
Multimeter	HP 34401A

5 46 2 0 A

1 6 C H AN N EL 5 0 0 M S a/s M ixe d Signal O sc illo sc o pe

Line

STO R A G E

M e a sure tim e

S a ve/ Re c a ll E ntry

	H O RIZO N TA L	TRIG G E R
	D ela y
C H A N N E L	Tim e/D iv
Sele c t
		IN P U TS

Po sitio n

Trigg er ou t Ex t trigg er in

!!

Channels 8 - 15

BNC-Banana	Channels 0 - 7
cable

Test

Connector

thresh.cdr

Setting Up Equipment and Test Connector for the Threshold Test

3-7