Sun Microsystems Netra 210, Service Manual

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B-8 Netra 210 Server Service Manual • March 2006
B.6 SCSI Port
The SCSI port is a multimode Ultra 160 SCSI interface. To operate at Ultra 160 SCSI
speeds, the device must be in low-voltage differential (LVD) mode. If a single-ended
device is connected to the server, it automatically switches to single-ended mode.
FIGURE B-7
shows the pin numbering of the SCSI port, and
TABLE B-11
describes the
pin signals.
FIGURE B-7
SCSI Port Pin Numbering
TABLE B-11
SCSI Port Pin Signals
Pin Signal Description Pin Signal Description
1 35 Data12 –
2 36 Data13 –
3 37 Data14 –
4 38 Data15 –
5 P 39 Parity1 –
6 Data0 + 40 Data0 –
7 Data1 + 41 Data1 –
8 Data2 + 42 Data2 –
9 Data3 + 43 Data3 –
10 Data4 + 44 Data4 –
11 Data5 + 45 Data5 –
12 Data6 + 46 Data6 –
13 Data7 + 47 Data7 –
14 P 48 Parity0 –
15 Ground 49 Ground
16 DIFF_SENSE 50 Ground
17 TERM_PWR 51 TERM_PWR
18 TERM_PWR 52 TERM_PWR
1 34
35 68