SCSI 50-Pin Internal Unshielded Header Connector

SCSI (A-Cable - Single-Ended) 50-Pin Internal Unshielded Header Connector SCSI-1 and SCSI-2 (Fast only)

see > SCSI 50-Pin External Shielded Header Connector
see > for SCSI Interface - Electrical Specifications

 

(Unshielded Alternative 1 connector specified in ANSI X3.131-1986)

Pin	Signal Name	Pin	Signal Name
1	Ground	2	-Data Bit(0)
3	Ground	4	-Data Bit(1)
5	Ground	6	-Data Bit(2)
7	Ground	8	-Data Bit(3)
9	Ground	10	-Data Bit(4)
11	Ground	12	-Data Bit(5)
13	Ground	14	-Data Bit(6)
15	Ground	16	-Data Bit(7)
17	Ground	18	-Data Bit(Parity)
19	Ground	20	Ground
21	Ground	22	Ground
23	Reserved	24	Reserved
25	Ground (open)	26	TERMPWR
27	Reserved	28	Reserved
29	Ground	30	Ground
31	Ground	32	-ATN
33	Ground	34	Ground
35	Ground	36	-BSY
37	Ground	38	-ACK
39	Ground	40	-RST
41	Ground	42	-MSG
43	Ground	44	-SEL
45	Ground	46	-C/D
47	Ground	48	-REQ
49	Ground	50	-Input/Output