Agilent Technologies N6700 manual Digital Control Port

Appendix B Using the Digital Port

Digital Control Port

An 8-pin connector and a quick-disconnect connector plug are provided on each instrument for accessing the five digital control port functions.

TIGHTEN SCREWS

1	2	3	4	5	6	7	I
+	-

Output trigger signal, or

Input trigger signal

INSERT WIRES

Signal Common

	The digital control connector accepts wires sizes from AWG 14 to
	AWG 30. Note that wire sizes smaller than AWG 24 are not
	recommended. Disconnect the connector plug to make your wire
	connections.
	It is good engineering practice to twist and shield all signal wires to and from
NOTE
	the digital connectors. If shielded wire is used, connect only one end of the
	shield to chassis ground to prevent ground loops.

The following chart describes the possible pin configuration for the digital port functions. For a complete description of the electrical characteristics of the digital I/O port, refer to Appendix A.

Pin Function	Available configurable pins
Digital I/O and Digital In	Pins 1 through 7
External Trigger In/Out	Pins 1 through 7
Fault Out	Pins 1 and 2
Inhibit In	Pin 3
Output State	Pins 4 through 7
Common (⊥)	Pin 8

In addition to the configurable pin functions, the active signal polarity for each pin is also configurable. When Positive polarity is selected, a logical true signal is a voltage high at the pin. When Negative polarity is selected, a logical true signal is a voltage low at the pin.

90 Series N6700 User’s Guide