IBM 86803RU - Netfinity 7000 M10, Hardware Maintenance Manual

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UltraSCSI Ports:
Your server has two UltraSCSI
bus-master controllers on the I/O function card; one
supports internal devices and the other is connected to an
external connector for support of external devices. Each
controller supports up to 15 SCSI devices. You can use
the 68-pin, SCSI connectors for these controllers to
expand the capabilities of your server by attaching different
types of SCSI devices, such as drives or printers.
Table 5 shows the pin-number assignments for the 68-pin
SCSI connectors.
Table 5. 68-Pin SCSI Port 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 Ground
16 Ground 50 Ground
17 +Term power 51 +Term power
18 +Term power 52 +Term 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 Ground 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