Magma P13RR-TEL User Manual download pdf (Page 53)

MAGMA

Appendix B Need More Slots? 45

The following image shows the Apple Profiler display when a MAC has

2 Expansion Systems connected in a “Fan-Out” configuration

MAC System Profiler with 2 PCI to PCI Expansion Systems Installed

in a “Fan-Out Configuration.

Daisy-Chaining

Recognizing the typical insignificance of the performance variance

between the “Fan-Out” and “Daisy-Chaining” configurations, the primary

reason for using this one would be limitations on physical space. This

could be the number of available slots on the computer motherboard, or

a lack of desk or rack space.

Daisy-Chaining ExpansionSystems

PCI Expansion

Host Card

Simply place anotherHost ExpansionCar d int o

avacant PCI slot on the 1st ExpansionSystem.

Then connect #1to #2 using the ExpansionCable.

PCI Expansion

Host Card

4, 7, 13Slot Chassis

Magma

Expansion

Cable

Proprietary

Expansion

Cable

In the daisy-chain configuration, successive PCI expansion systems are

added to the "end" of the PCI bus hierarchy, which adds "depth" to the

PCI Local Bus by increasing the number of PCI Local Bus levels active

in the system configuration.

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Magma P13RR-TEL User Manual Page 53