IBM eServer 240 xSeries, Руководство пользователя

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SCSI ports
Your server comes with a low voltage differential (LVD) SCSI controller on the
system board, which provides two independent SCSI channels. A 16-bit (wide)
SCSI cable connects the hot-swap backplane to one channel of the integrated
low-voltage differential (LVD) SCSI controller. Another SCSI cable connects the
other channel of the controller to the SCSI connector on the rear of the server.
To attach an external SCSI device to your server, connect an external SCSI cable
from the SCSI device to the SCSI connector on the back of the server. Ensure that
the last device on the external SCSI cable is terminated.
34
1
68
35
Table 9 shows the pin-number assignments for the 68-pin SCSI connectors.
Table 9. 68-pin SCSI port connector pin-number assignments
Pin Signal Pin Signal
1
+
Data 12 35
−
Data 12
2
+
Data 13 36
−
Data 13
3
+
Data 14 37
−
Data 14
4
+
Data 15 38
−
Data 15
5
+
Data P1 39
−
Data P1
6
+
Data 0 40
−
Data 0
7
+
Data 1 41
−
Data 1
8
+
Data 2 42
−
Data 2
9
+
Data 3 43
−
Data 3
10
+
Data 4 44
−
Data 4
11
+
Data 5 45
−
Data 5
12
+
Data 6 46
−
Data 6
13
+
Data 7 47
−
Data 7
14
+
Data P 48
−
Data P
15 Ground 49 Ground
16 DIFFSENS 50 Ground
17 Terminator power 51 Terminator power
18 Terminated power 52 Terminated power
19 Reserved 53 Reserved
20 Ground 54 Ground
21
+
Attention 55
−
Attention
22 Ground 56 Ground
23
+
Busy 57
−
Busy
24
+
Acknowledge 58
−
Acknowledge
25
+
Reset 59
−
Reset
26
+
Message 60
−
Message
27
+
Select 61
−
Select
28
+
Control/Data 62
−
Control/Data
29
+
Request 63
−
Request
30
+
Input/Output 64
−
Input/Output
31
+
Data 8 65
−
Data 8
32
+
Data 9 66
−
Data 9
33
+
Data 10 67
−
Data 10
34
+
Data 11 68
−
Data 11
96
IBM xSeries User's Reference