Agilent Technologies Switch/Measure manual 34923A D-Sub Connectors for One-Wire Mode

Low Frequency Multiplexer Switch Modules 4

34923A D-Sub Connectors for One-Wire Mode

Bank 1

Bank 1 Bank 2

For orientation, the D-sub connector end of the module is facing you.

							COM COM
1		2	3	4	5	6	1H	1L	7	8		27	28	9	10	39	40	Interlock1
1		2	3	4	5	6	7	8	9	10		11	12	13	14	15	16	17
Reserved		21	22	13	14		33	34	25	26	17	18	37	38	29	30	Interlock 1
18		19	20	21	22		23	24	25	26	27	28	29	30	31	32		33
GND	11		12	31	32	23	24	15	16	35		36	19	20		Reserved
34		35	36	37	38	39	40	41	42	43		44	45	46	47	48	49	50

WARNING As a safety feature, interlock 1 pins (17 and 33) on Bank 1 must be shorted to enable the Bank 1 Analog Bus relays to close. The optional 34923T-002 (for

1-wire) shorts these pins for you. This feature protects inadvertent routing of high voltages from the Analog Bus to the D-sub connector of the module.

Description	Pin	Description	Pin	Description	Pin	Description	Pin	Description	Pin
1	1	11	35	21	19	31	37	COM1 H	7
2	2	12	36	22	20	31	38	COM1 L	8
3	3	13	21	23	39	33	23	Interlock 1	17
4	4	14	22	24	40	34	24	Interlock 1	33
5	5	15	41	25	25	35	43	GND	34
6	6	16	42	26	26	36	44	Reserved	18
7	9	17	27	27	11	37	29	Reserved	47
8	10	18	28	28	12	38	30	Reserved	48
9	13	19	45	29	31	39	15	Reserved	49
10	14	20	46	30	32	40	16	Reserved	50

Bank 2

						COM COM
41	42	43	44	45	46	2H		2L	47	48		67	68	49	50	79	80 Interlock 2
1	2	3	4	5	6	7		8	9	10		11	12	13	14	15	16	17
Reserved 61		62	53	54		73	74	65		66	57	58	77	78	69	70	Interlock 2
18	19	20	21	22		23	24	25		26	27	28	29	30	31	32		33
GND	51	52	71	72	63	64		55	56	75		76	59	60		Reserved
34	35	36	37	38	39	40		41	42	43		44	45	46	47	48	49	50

WARNING As a safety feature, interlock 2 pins (17 and 33) on Bank 2 must be shorted to enable the Bank 2 Analog Bus relays to close. The optional 34923T-002 (for

1-wire) shorts these pins for you. This feature protects inadvertent routing of high voltages from the Analog Buses to the D-sub connector of the module.

Description	Pin	Description	Pin	Description	Pin	Description	Pin	Description	Pin
41	1	51	35	61	19	71	37	COM2 H	7
42	2	52	36	62	20	72	38	COM2 L	8
43	3	53	21	63	39	73	23	Interlock 2	17
44	4	54	22	64	40	74	24	Interlock 2	33
45	5	55	41	65	25	75	43	GND	34
46	6	56	42	66	26	76	44	Reserved	18
47	9	57	27	67	11	77	29	Reserved	47
48	10	58	28	68	12	78	30	Reserved	48
49	13	59	45	69	31	79	15	Reserved	49
50	14	60	46	70	32	80	16	Reserved	50

34980A User’s Guide 119