Avago Technologies LSI53C120 - Manual (Page 20)

12 LSI20101/LSI20102 SCSI Bus Boards
bus. The operation is logically transparent to software and data, uses no
software code, and does not use a SCSI ID.
Figure 3 illustrates the
component location on the LSI20102 Converter board.
Figure 3 LSI20102 SCSI Bus Converter Board
4.1 Connectors
The connectors for the LSI20102 Converter board are
•
J1 is a standard disk drive power connector. (AMP 641737-1 or
equivalent)
•
J2 and J3 are 68-pin high density, shielded, latching, right-angle
SCSI connectors. (AMP 787170-7 or equivalent)
•
J4 is a 6-pin unshrouded header. (AMP 104427-4 or equivalent)
NC
J1
U11
LSI53C120
J4
SW1 - SE TERMPWR
SW2 - DIFF TERMPWR
SW3 - SE TERM OFF
SW4 - DIFF TERM OFF
CR1 - DIFF TERMPWR SHORTED
CR7 - BUSY
CR10 - SE TERMPWR SHORTED
U8
SW-1
SW-2
SW-3
SW-4
CR1 CR7
SE-A
TERM
SE-B
TERM
BUSY LSI20102
U1
GND GND +5V
CR10
DIFF SE
2.55”
J2 J3
U2
U3
U7
U6
U5
U12
U13
U14
3.75” 3.95”
4.50”