Appendix B. SCSI Bus Signal Timing
Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives
B–3
Table B–1 SCSI Bus Timing Values -- ANSI SCSI-2 Standard (continued)
Fast Synchronous Option
Fast Assertion Period
30 ns
Minimum time a drive asserts REQ and the
minimum time an initiator asserts ACK while
using fast synchronous data transfers.
Fast Cable Skew Delay
5 ns
Maximum difference in propagation time allowed
between any two SCSI bus signals measured
between any two SCSI devices while using fast
synchronous data transfers.
Fast Deskew Delay
20 ns
Minimum time required to wait for all signals
(especially data signals) to stabilize at their
correct, final value after changing while using fast
synchronous data transfers.
Fast Hold Time
10 ns
Minimum time added between the assertion of
REQ or ACK and the changing of the data lines to
provide hold time in the initiator or drive,
respectively while using fast synchronous data
transfers.
Fast Negation Period
30 ns
Minimum time that a drive negates REQ and the
minimum time than an initiator negates ACK
while using synchronous data transfers.
Summary of Contents for Quantum Atlas 10K II 9.2/18.4/36.7/73.4 GB
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Page 55: ...Installation 3 28 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
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Page 315: ...Feature Descriptions 6 14 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 321: ...Appendix A Quick Reference A 6 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 363: ...Appendix B SCSI Bus Signal Timing B 42 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 369: ...Index I 4 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
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