Appendix 4-Trigger Signal Description; Making A Trigger Cable; Trigger Signal Description; Reference - Agilent Technologies 8924C Product Notes

Appendix 5—Trigger Cable and Trigger Signal
Description

Making a Trigger Cable

Components
• Shielded coaxial cable approximately 3 ft
(1 m) long
• Male BNC connector with solder pot termi-
nal and ground lug
• 15-pin male subminiature D-connector
with solder pot terminals
• 15-pin subminiature D-connector hood
• Heat shrink tubing or insulator
Figure 17. Trigger Delay Response
Figure 18. Trigger Cable Assembling
Procedure
1. Solder the cable's center-conductor to pin
6 of the D-connector (see Figure 18).
2. Solder the other end of the center conduc-
tor to the BNC center pin.
3. Solder the cable shield to the BNC ground
lug.
4. Shrink wrap the D-connector so it will not
contact any pins.
5. Shrink wrap the conductor and soldered
pins, and install the hood on the D-connector.

Trigger Signal Description

Approximately 15 to 20 milliseconds
the RF output power changes on the test set, the
trigger signal on the AUX CONTROL connecter pin
6 goes high, see Figure 17. The rise time for the
trigger transition from low to high is negligible,
approximately 600 nanoseconds (ns).

Reference

For more information on the auxiliary control port
refer to: Agilent 8924C Reference Guide, pub. num-
ber 08924-90053.
1. To measure the precise delay time for your test set, refer to Section 7—
Determining the Test Set's Trigger Time Delay in this product note.
(ms) before
1
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