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Describes the manual's purpose and scope within the documentation set.
Identifies the intended readers for this information product.
Explains the text conventions for commands, filenames, and displays.
Defines the notation used for hexadecimal numbers.
Explains the conventions for naming and identifying signals.
Provides a high-level description of the 3B21D computer's capabilities.
Lists the various applications where the 3B21D computer is used.
Describes the high-level architecture of the 3B21D computer.
Details the physical features of the 3B21D computer system.
Explains features contributing to system reliability and maintainability.
Describes the cost-effective configurations and growth options for the 3B21D system.
Provides specific examples of system configurations for Release 1.
Details the assignments of SCSI controllers and buses for peripheral units.
Describes the physical packaging and dimensions of the system cabinets.
Explains the use of backplane keys for proper circuit pack installation.
Details the cooling mechanisms for processor and growth cabinets.
Provides a functional block diagram and overview of the 3B21D computer system.
Describes the functions and components of the Control Unit.
Explains the DMA function for peripheral device access to main memory.
Lists and describes the types of peripheral devices supported.
Provides a functional block diagram of the Central Control circuit pack.
Explains the Boundary Scan bus architecture and its components.
Describes the Main Store and its update mechanisms.
Explains DMA transfers and the DSCH interface.
Describes the Utility Circuit's functions for debugging and testing.
Details the interface for new hardware features via Expansion slots.
Describes the Disk File Controller's function and components.
Explains the Input/Output Processor's role in I/O handling.
Lists and describes the supported peripheral controllers.
Details the Scanner and Signal Distributor Controller's characteristics.
Describes the Port Switch and Scanner-Distributor Buffer's functions.
Overviews the Small Computer System Interface (SCSI) peripheral units.
Describes the UN375-UN375F SCSI Hard Disk Drive circuit packs.
Describes the UN376 series SCSI DAT Cartridge Tape Drive circuit packs.
Details the optional 9-Track SCSI Tape Drive.
Describes the Maintenance Terminal's characteristics.
Describes the available Receive Only Printers.
Provides an overview of the -48 V DC distribution arrangement.
Details the power distribution within the Processor Cabinet.
Describes the power distribution for Growth Units.
Explains the power distribution for Processor Units.
Details the power distribution and control for IOPs.
Describes the power distribution and control for DFCs.
Explains power control for UN375 disk and UN376 DAT drives.
Describes the bidirectional cooling unit and its functions.
Lists the mechanical and schematic drawings for the 3B21D computer.
Lists internal documents detailing packaging and manufacturing.
Identifies KS and NCR specifications for 3B21D computer equipment.
Lists internal Lucent Technologies Information Products supporting the 3B21D computer.
Lists external Lucent Technologies documents supporting the 3B21D computer.
Provides an overview of system specifications and applicable standards.
Lists domestic and international environmental, regulatory, and safety standards.
Details the environmental operating specifications for the 3B21D computer.
Identifies the various cable assemblies used for the 3B21D computer.
Details the ED3T076-20 connectorized switchboard cables.
Details the ED3T076-40 flex tape cables.
Details the ED3T076-50 formed cable assemblies.
Identifies the 9824A paddleboard assemblies.
Identifies the SCSI bus terminators.
Lists the SCSI bus jumper locations.
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General| Brand | BELL LABS INNOVATIONS |
|---|---|
| Model | Lucent Technologies 3B21D |
| Category | Desktop |
| Language | English |
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