Power connector j1 – Avago Technologies LSI53C120 User Manual
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LSI20101/LSI20102 SCSI Bus Boards
2.4.1 Power Connector J1
The DC power interface receives a standard disk drive power plug. There
is a fuse between the + 5 V connector and the SCSI bus TERMPWR
connectors. See
for J1 signal assignments.
2.4.2 SCSI Connectors J2 and J3
The SE SCSI interface on the LSI20101 board operates as a 16-bit,
synchronous or asynchronous SCSI bus and accommodates 8-bit SCSI
transfers. The signal definitions conform to the SCSI-2 SE standard. The
SCSI interface connectors J2 and J3 are both 68-pin, high density,
latching right-angle receptacles, and the pin definitions conform to the
X3T9.90-048 SE P cable recommendation. SCSI TERMPWR can also
be supplied by the board.
shows the signal assignments for J2
and J3.
Table 1
Power Connector J1
J1-Pin Number
Signal Name
1
Open
2
GND
3
GND
4
+5 V