
Chapter 2: Installation
Ultra320 SCSI
Connector
Refer to the table below for the pin definitions of the Ul- tra320 SCSI connectors lo- cated at JA1 and JA2.
68-pin  Ultra320 SCSI Connectors (JA1 and JA2)
| Connector | 
 | 
| Contact | 
 | 
| Number | Signal Names | 
| 1 | +DB(12) | 
| 2 | +DB(13) | 
| 3 | +DB(14) | 
| 4 | +DB(15) | 
| 5 | +DB(P1) | 
| 6 | +DB(0) | 
| 7 | +DB(1) | 
| 8 | +DB(2) | 
| 9 | +DB(3) | 
| 10 | +DB(4) | 
| 11 | +DB(5) | 
| 12 | +DB(6) | 
| 13 | +DB(7) | 
| 14 | +DB(P) | 
| 15 | GROUND | 
| 16 | DIFFSENS | 
| 17 | TERMPW R | 
| 18 | TERMPW R | 
| 19 | RESERVED | 
| 20 | GROUND | 
| 21 | +ATN | 
| 22 | GROUND | 
| 23 | +BSY | 
| 24 | +ACK | 
| 25 | +RST | 
| 26 | +MSG | 
| 27 | +SEL | 
| 28 | +C/D | 
| 29 | +REQ | 
| 30 | +I/O | 
| 31 | +DB(8) | 
| 32 | +DB(9) | 
| 33 | +DB(10) | 
| 34 | +DB(11) | 
| 
 | 
 | 
| Connector | 
 | 
| Contact | 
 | 
| Number | Signal Names | 
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49GROUND
50GROUND
51TERMPW R
52TERMPW R
53RESERVED
54GROUND
55
56GROUND
57
58
59
60
61
62
63
64
65
66
67
68
