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X7DB8/X7DBE User's Manual
®
JLAN1
S
UPER X7DB8/E
A
B
A. SCSI Channel A
B. SCSI Channel B
Ultra 320 SCSI
Connectors (*X7DB8
only)
There are two SCSI connectors
on the motherboard. SCSI
Channel A is located at JA1,
and SCSI Channel B is located
at A2. Refer to the table below
for the pin defi nitions of the
Ultra 320 SCSI connectors
located at JA1 and JA2.
Ultra320 SCSI Drive Connector
Pin Defi nitions
Pin# Defi nition Pin # Defi nition
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 -MSG
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)