NEC NX7700i/5040H-32 - Manual (Page 35)

System Overview
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1.2.7. Adding Peripheral Units
The iSP is installed in the base module to satisfy various customer’s requirements for system
configurations. The system is designed to connect a wide variety of peripheral units through this
iSP. Peripheral units can also be connected through various types of PCI cards available on the
I/O module.