IBM 866251Y - Netfinity 5500 M20, Руководство по техническому обслуживанию аппаратной части

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SCSI port:
The server comes with a RAID 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 RAID
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 the 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. Table 7
shows the pin-number assignments for the 68-pin SCSI
connectors.
Table 6. Keyboard and auxiliary-device port
pin-number assignments
Pin Signal
1 Data
2 Not connected
3 Ground
4
+
5 V dc
5 Clock
6 Not connected
Table 7. 68-pin SCSI port connector pin-number
assignments
Pin Signal Pin Signal
1 Ground 35 Data 12
2 Ground 36 Data 13
3 Ground 37 Data 14
4 Ground 38 Data 15
5 Ground 39 Data P1
6 Ground 40 Data 0
7 Ground 41 Data 1
8 Ground 42 Data 2
9 Ground 43 Data 3
10 Ground 44 Data 4
11 Ground 45 Data 5
12 Ground 46 Data 6
13 Ground 47 Data 7
14 Ground 48 Data P0
15 Ground 49 Reserved
16 Ground 50 -PRSN
17 Terminal power 51 Terminal power
18 Terminal power 52 Terminal power
19 Reserved 53 Reserved
20 Ground 54 Ground
21 Ground 55 -Attention
22 Ground 56 Ground
23 Ground 57 -Busy
24 Ground 58 -Acknowledge
25 Not connected 59 -Reset
26 Ground 60 -Message
27 Ground 61 -Select
28 Ground 62 -Control/Data
29 Ground 63 -Request
30 Ground 64 -Input/Output
31 Ground 65 Data 8
32 Ground 66 Data 9
33 Ground 67 Data 10
34 Ground 68 Data 11
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Netfinity Server HMM