Logic SCSI to PCI Host Adapter User's Guide

3-8 Ultra160 SCSI to PCI Host Adapter Characteristics
3.2.6 LSI21003 Host Adapter
The LSI21003 PCI to Dual Channel Ultra160 SCSI host adapter
(Figure 3.6) provides 16-bit LVD and SE SCSI solutions for your
computer. Channel A supports only the SE mode, while channel B
supports LVD and SE modes of operation.
The LSI21003 host adapter has these features:
• Ultra SCSI Wide SE for channel A to 40 Mbytes/s per data transfer;
Ultra160 SCSI for channel B to 160 Mbytes/s per data transfer
• Four connectors
– One external 50-pin high density connection
– Two internal 68-pin high density connections
– One internal 50-pin low density legacy connection for channel A
• Channel A is SE only with autosense termination
• Channel B is SE or LVD with termination permanently enabled
Figure 3.6 LSI21003 Mechanical Drawing
Note:
• J1: PCI 32-bit, universal type board edge connector.
• J2 and J5: 68-pin high density shielded latching right-angle internal connectors.
• J3: 50-pin high density shielded right-angle external connector.
• J4: 50-pin low density shrouded vertical internal connector.
• J6: 4-pin low density unshrouded right-angle LED connector.
• Subsystem Vendor ID is 1000.
• Subsystem ID is 1050.
J6 LED
J5 Channel B - Ultra160 SCSI LVD/SE
B Terminators
A Terminators
LSI53C1010
J1 - PCI
J3
Channel A
Ultra SCSI
J2 Channel A - Ultra SCSI Wide SE
J4 Channel A - Ultra SCSI
Wide SE
Wide SE