Agilent Technologies Switch/Measure 34951A D-Sub Connector Pinout, Internal to the 34951A Module

94-Channel Isolated D/A Converter with Waveform Memory Module

The following diagram shows individual DAC channel configuration. All channels are configured the same.

Each DAC is configured as shown in this drawing.

Internal to the 34951A Module User-Supplied Connections

External

Trigger

External

Clock

	Internal
	Clock	HI Voltage Sense
	Internal	HI Voltage, + Current
Immediate	Trigger
		25 mA resettable
Data
	16 Bits	thermal fuse
	Control Logic	LO Voltage, − Current
Waveform
Memory	DAC x	LO Voltage Sense
	Calibration constant in
	non-volatile memory

34951A D-Sub Connector Pinout

GND	NC	4 L	4H	3L	3H	GND GND GND			NC	2L	2H	GND	NC	1L	1H	GND
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17
	4L	4H	3L	3H		EXT			2L		2H			1L	1H
GND Sense Sense Sense Sense GND CLK							TRIG GND Sense Sense GND GND Sense								Sense	GND
18	19	20	21	22	23	24	25	26	27		28	29	30	31	32	33
GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND
34	35	36	37	38	39	40	41	42	43	44	45	46	47	48	49	50

Description	Pin	Description	Pin	Description	Pin	Description	Pin	Description	Pin
1L	15	3L Sense	21	GND	8	GND	34	GND	44
1H	16	3H Sense	22	GND	9	GND	35	GND	45
1L Sense	31	4L	3	GND	13	GND	36	GND	46
1H Sense	32	4H	4	GND	17	GND	37	GND	47
2L	11	4L Sense	19	GND	18	GND	38	GND	48
2H	12	4H Sense	20	GND	23	GND	39	GND	49
2L Sense	27	External Clock	24	GND	26	GND	40	GND	50
2H Sense	28	Trigger	25	GND	29	GND	41	No Connect	2
3L	5	GND	1	GND	30	GND	42	No Connect	10
3H	6	GND	7	GND	33	GND	43	No Connect	14

194 34980A User’s Guide