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Hardware Overview
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Hardware Overview
Type of Computing System
The ClearPath NX5820 and NX5820 K Server is a general-purpose, medium-to-high-
performance system running under Level Delta compatible MCP.
The System Cabinet
The system cabinet includes:
• A central equipment complex (CEC) section
• An expansion section for additional servers, consoles, and peripherals
The SVGA monitor with keyboard and mouse are placed on a table or other surface near
the system cabinet. Figure 1–1 provides a conceptual view of the ClearPath Enterprise
Server NX5820 and NX5820 K with VX1505-based servers.
Central Equipment Complex (CEC) Section
The Central Equipment Complex section:
• Houses the modules comprising the central processor system—one or two domains
• Includes the following resources:
− From one to ten processor modules (PMs) depending on model
− From one to six memory storage units (MSUs) depending on model and options
− One or two Input/Output Modules, one per domain, depending on model and
options.
− Common logic, including maintenance subsystem, and master clock
− Separate power subsystem in each domain
− Shared cooling for both domains
• No servers are located in the CEC section.
• Up to two Automatic Power Control (APC)s depending on configuration.
• Up to two Maintenance LAN Hubs, unlimited switching (Public) Hubs, and two Apex
Selector ST switches depending on configuration.
Figure 1–2 shows PCAs located for the CEC for the ClearPath Enterprise Server NX5820.
Figure 1–3 shows PCAs located for the CEC for the ClearPath Enterprise Server NX5820
K.
Figure 1–4 through Figure 1–6 show block diagrams of the ClearPath Enterprise Server
NX5820 and NX5820 K in various configurations of domains, switching hubs, servers, and
consoles.
Refer to Section 2 for information on specific models.