LSI Ultra160, User Manual

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Host Adapter Characteristics 3-5
3.2.3 LSI22903 Host Adapter
The LSI Logic LSI22903 PCI to Dual Channel Ultra160 SCSI Low Profile
PCI Host Adapter (
Figure 3.3) provides two independent Ultra160 SCSI
channels. The LSI22903 board is a LPPCI board with a low profile
bracket. The SCSI interface is made through connector J2 for channel A
and J4 for channel B.
The LSI22903 has these features:
•
Two independent Ultra160 SCSI channels
•
Two connectors
– One external 68-pin VHDCI connection
– One internal 68-pin high density connection
•
LVD/SE termination for external Channel A
•
LVD termination for internal Channel B
Figure 3.3 LSI22903 Mechanical Drawing
Note:
•
J1: PCI 64-bit, universal type board edge connector.
•
J2: 68-pin very high density external connector for channel A.
•
J4: 68-pin high density internal connector for channel B.
•
J3: 4-pin low density unshrouded right-angle LED connector.
•
Subsystem Vendor ID is 1000.
•
Subsystem ID is 1020.
J1T - PCI
LSI53C1010
J2
Channel A
J3 LED
Ultra160 SCSI LVD/SE
J4
Channel B
Ultra160 SCSI LVD only