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Avago Technologies LSI53C120 User Manual

Page 22

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14

LSI20101/LSI20102 SCSI Bus Boards

4.4.2 SCSI Connectors J2 and J3

The SCSI interfaces on the LSI20102 board operate as a 16-bit,
synchronous or asynchronous SCSI bus and accommodates 8-bit SCSI
transfers. The SCSI interface connectors J2 and J3 are 68-pin, high
density, latching, right-angle receptacles and the pin definitions conform
to the X3T9.2/90-048 SE P cable recommendation. SCSI TERMPWR
can also be supplied by the board. Connector J2 is a SE only connector
and its pinout is the same as shown in

Table 2

.

Table 8

shows the signal

assignments for J3, which is a High Voltage Differential (HVD)
connection.