ST43401N/ND, ST43402ND User’s Manual, Rev. B | 37 |
Grounding the system
Grounding the system through the power cables and I/O cables is usually sufficient to protect against noise and emissions.
Synchronizing the spindle
The spindle sync feature makes it possible to synchronize the spindle rotation of a group of disc drives. This reduces the latency normally encountered when the initiator switches between multiple disc drives.
Figure 19 shows two system configurations. In one type of system, one of the disc drives in the system provides the reference clock. In the other type, an external signal source provides the reference clock.
Internal Source
Spindle
SyncJ05
Cable
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Drive
SP
Select
Plug
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SP
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J05
Drive
SP
J05
Drive
SP
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maximum
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Drive
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Terminator |
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✴Master designated by jumper or by initiator