HP XA Pin, Pin, Pin, Pin, ATN, BSY, ACK, RST, MSG, SEL, C_D, REQ, I_O, Pin, Pin, Pin, Pin, ATN, BSY, ACK, RST, MSG, SEL, C_D, REQ, I_O, SCD0, SCD1, SCD2, SCD3

3 Interface Devices and Mass-Storage Drives

Connectors and Sockets

16-Bit SCSI Connector8-Bit SCSI Connector

16-Bit SCSI Connector

Pin	Signal	Pin	Signal	Pin	Signal	Pin	Signal
1	not connected	2	not connected	35	SCD12	36	SCD13
3	not connected	4	not connected	37	SCD14	38	SCD15
5	not connected	6	not connected	39	SCDP1	40	SCD0
7	not connected	8	not connected	41	SCD1	42	SCD2
9	not connected	10	not connected	43	SCD3	44	SCD4
11	not connected	12	not connected	45	SCD5	46	SCD6
13	not connected	14	not connected	47	SCD7	48	SCDP
15	not connected	16	not connected	49	not connected	50	INT_DEV
17	TERMPWR3	18	TERMPWR4	51	not connected	52	not connected
19	RESERVED2	20	not connected	53	not connected	54	not connected
21	EXTARBACK	22	CGROUND0	55	ATN	56	not connected
23	not connected	24	not connected	57	BSY	58	ACK
25	not connected	26	not connected	59	RST	60	MSG
27	not connected	28	not connected	61	SEL	62	C_D
29	not connected	30	not connected	63	REQ	64	I_O
31	not connected	32	not connected	65	SCD8	66	SCD9
33	not connected	34	not connected	67	SCD10	68	SCD11

16-Bit SCSI Connector

Pin	Signal	Pin	Signal	Pin	Signal	Pin	Signal
1	not connected	2	SCD0	27	RESERVED2	28	RESERVED4
3	not connected	4	SCD1	29	not connected	30	not connected
5	not connected	6	SCD2	31	not connected	32	ATN
7	not connected	8	SCD3	33	not connected	34	not connected
9	not connected	10	SCD4	35	not connected	36	BSY
11	not connected	12	SCD5	37	not connected	38	ACK
13	not connected	14	SCD6	39	not connected	40	RST
15	not connected	16	SCD7	41	not connected	42	MSG
17	not connected	18	SCDP	43	not connected	44	SEL
19	not connected	20	not connected	45	not connected	46	C_D
21	not connected	22	EXTDEV	47	not connected	48	REQ
23	RESERVED1	24	RESERVED3	49	not connected	50	I_O
25	not connected	26	TERMPWR	51	CGROUND1	52	CGROUND2

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