LSI 21003 - Manual (Page 44)

3-2 Technical Specifications
Figure 3.1 LSI21003 Mechanical Drawing
3.1.1 Physical Characteristics
The dimensions of the LSI21003 are approximately 177.8 x 83.8 mm
(7.0 x 3.3 inches). PCI connection is made through edge connector J1.
The component height on the top and bottom of the LSI21003 follows the
PCI specification.
Internal SCSI connections can be made in two ways:
•
68-pin high density connectors J2 for Channel A or J5 for
Channel B (16-bit).
•
50-pin low density connector J4 for Channel A (8-bit).
External SCSI connection is made to Channel A through the 50-pin high
density connector J3. Connector J3 extends through the ISA/EISA
bracket.
Connector J6 connects the Busy LED. It is a 4-pin, one row, right-angle
header and indicates bus activity for both Channel A and Channel B.
Note: all dimensions in inches
•
J1: PCI 32-bit, universal type board edge connector.
• J2 and J5: 68-pin high density shielded latching right-angle connector.
• J3: 50-pin high density shielded right-angle connector.
• J4: 50-pin low density shrouded vertical connector.
• J6: 4-pin low density unshrouded right-angle header.
J5
J6
J2
Channel A
J4
J3
Channel B
B Terminators
A Terminators
LSI53C1010
J1T
Channel A