MSI MS-9246 3-11, Ultra320 SCSI Connectors SCSI1/SCSI2 Optional, Mainboard Hardware, SCSI1/2

Mainboard Hardware

Ultra320 SCSI Connectors: SCSI1/SCSI2 (Optional)

SCSI (Small Computer System Interface) is a parallel interface standard for attaching peripheral devices to computers. Ultra320 SCSI is the seventh generation of SCSI I/O technology, and has a maximum data rate speed of 320 MB/sec. SCSI’s commitment to backward compatibility and legacy support are the primary reasons for its durability as an I/O interface, making SCSI the industry standard for disk drive connection in virtually all high-performance servers.

SCSI1/2

35	68
1	34

68-Pin Ultra320 SCSI Connector

Pin	Description	Pin	Description
1	+DB(12)	35	-DB(12)
2	+DB(13)	36	-DB(13)
3	+DB(14)	37	-DB(14)
4	+DB(15)	38	-DB(15)
5	+DB(P1)	39	-DB(P1)
6	+DB(0)	40	-DB(0)
7	+DB(1)	41	-DB(1)
8	+DB(2)	42	-DB(2)
9	+DB(3)	43	-DB(3)
10	+DB(4)	44	-DB(4)
11	+DB(5)	45	-DB(5)
12	+DB(6)	46	-DB(6)
13	+DB(7)	47	-DB(7)
14	+DB(P)	48	-DB(P)
15	GROUND	49	GROUND
16	DIFFSENS	50	GROUND
17	TERMPWR	51	TERMPWR
18	TERMPWR	52	TERMPWR
19	RESERVED	53	RESERVED
20	GROUND	54	GROUND
21	+ATN	55	-ATN
22	GROUND	56	GROUND
23	+BSY	57	-BSY
24	+ACK	58	-ACK
25	+RST	59	-RST
26	+MSG	60	-MST
27	+SEL	61	-SEL
28	+C/D	62	-C/D
29	+REQ	63	-REQ
30	+I/O	64	-I/O
31	+DB(8)	65	-DB(8)
32	+DB(9)	66	-DB(9)
33	+DB(10)	67	-DB(10)
34	+DB(11)	68	-DB(11)

3-11