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Network Processing Engine and Network Services Engine Installation and Configuration
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Chapter 3 NPE-300 and NPE-400 Overview
NPE-300 and NPE-400 Description and Overview
Figure 3-2 NPE-400
The network processing engines consist of the following components:
• Reduced instruction set computing (RISC) microprocessor
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The NPE-300 uses an RM7000 microprocessor that operates at an internal clock speed of
262 MHz.
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The NPE-400 uses an RM7000 microprocessor that operates at an internal clock speed of
350 MHz.
• System controller
The system controller provides hardware logic to interconnect the processor, DRAM, and the
PCI-based system backplane bus.
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The NPE-300 has two system controllers that provide processor access to the midplane and
single I/O controller PCI buses. The system controllers also allow port adapters access to
SDRAM using any of the three PCI buses.
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The NPE-400 has a single system controller that provides system access.
1Temperature sensor (U31) 7Midplane connectors
2Keying post 8Boot ROM (U7)
3RM7000 microprocessor 9Temperature sensor (U6)
4System controller 10 SODIMM (J1)
5Captive installation screw 11 Standoff and screw
6Handle
NETWORK PROCESSING ENGINE-400
NETWORK PROCESSING ENGINE-400
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