External Connector Pin Assignments - Adaptec AHA-1740A Technical Reference Manual

EISA-to-Fast SCSI Host Adapter

External Connector Pin Assignments

AHA-1740A/1742A (Single-Ended)
Signal Name
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Open
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Pin Pin
1 26
2 27
3 28
4 29
5 30
6 31
7 32
8 33
9 34
10 35
11 36
12 37
13 38
14 39
15 40
16 41
17 42
18 43
19 44
20 45
21 46
22 47
23 48
24 49
25 50
Connector Pinout
Signal Name
-DB(0)
-DB(1)
-DB(2)
-DB(3)
-DB(4)
-DB(5)
-DB(6)
-DB(7)
-DB(P)
Ground
Ground
Reserved
Term Power (Fused)
Reserved
Ground
-ATN
Ground
-BSY
-ACK
-RST
-MSG
-SEL
-C/D
-REQ
-I/O
B-3