124 lines
5.1 KiB
TeX
124 lines
5.1 KiB
TeX
\chapter{Systems Introduction}
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\section{The VAXstation 2000 and MicroVAX 2000 Systems}
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\pagestyle{main}
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\pagenumbering{arabic}
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\setcounter{page}{1}
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The VAXstation 2000 and MicroVAX 2000 systems are mechanically
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identical. Both come in the same style box, both use the same drives,
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and both use the same mass storage expansion boxes. Also, both use
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the same diagnostic tools for troubleshooting and repair. Once familiar
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with troubleshooting one system, you'll be able to troubleshoot the other
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if necessary. One major difference is the VAXstation 2000 is a single-user
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system and the MicroVAX 2000 is a multiuser system. Another difference
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is the VAXstation 2000 uses a video monitor while the MicroVAX 2000 uses
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video terminals.
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Both the VAXstation 2000 and the MicroVAX 2000 have three main pieces
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of hardware. They are the System box, the hard disk expansion box, and
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the tape drive expansion box. The System box can have a half-height RX33
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floppy disk drive, a half-height RD32 hard disk drive, or both the RX33 and
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the RD32. A full-height RD53 hard disk drive can be substituted for the
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half-height drives in the System box. The hard disk expansion box comes with a
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full-height RD53 hard disk drive. The tape drive expansion box comes with
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a TK50 tape drive.
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\newpage
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\figref{1-1} shows the front of the VAXstation 2000 and MicroVAX 2000
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systems. There are three ways to differentiate between the two systems:
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the medallion next to the power switch on the front, the DEC423 converter
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on the back, or the system jumper position on the system module inside
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the box.
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\fig{MA-0063-87}{Front View of the VAXstation 2000 and MicroVAX 2000 Systems}
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\newpage
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\figref{1-2} shows the rear view of the VAXstation 2000 and labels each
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connector. A modem or a terminal can be connected to the 25-pin
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communication port. A VR260 monochrome monitor can be connected to the
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15-pin video port. A printer can be connected to the 9-pin printer port. The
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ThinWire Ethernet port Supports IEEE 802.3 (Standard Ethernet) network
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communications connections over the ThinWire Ethernet cable.
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\fig{MA-0132-87}{Rear View of the VAXstation 2000 System}
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\newpage
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\figref{1-3} shows the rear view of the MicroVAX 2000 and labels each
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connector. Like the VAXstation 2000, the MicroVAX 2000 supports a modem
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or a terminal on the 25-pin communication port. The MicroVAX 2000
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supports the DECconnect strategy which uses the modified modular jack (MMJ)
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6-conductor telephone type cable (DEC423 asynchronous protocol) for
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connection to the terminals. The DEC423 Converter changes the 15-pin video
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port and the 9-pin printer port (RS232 protocol) to three MMJ communication
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ports. Port 1 on the DEC423 Converter is reserved for the console
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terminal. Ports 2 and 3 can have either a terminal or a printer attached to
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them. The operating system Software configures each port for either a terminal
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or a printer. The ThinWire Ethernet port supports IEEE 802.3 (Standard
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Ethernet) network communications connections over the ThinWire Ethernet
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cable.
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\fig{MA-0134-87}{Rear View of the MicroVAX 2000 System}
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\section{Mass Storage Expansion Box for Both Systems}
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Additional mass storage devices are contained in expansion boxes that look
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very similar to the system box. \figref{1-4} and \hyperref[figure:1-5]{1-5} show the front view of
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the expansion boxes.
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The hard disk expansion box contains an RD53 or RD54 hard disk drive.
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The tape drive expansion box contains a TK50 tape drive and a controller
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board. Each expansion box contains a power supply, a resistor load board
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(to regulate the power supply), and the drive.
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\fig{MA-0065-87}{Front View of the Hard Disk Expansion Box}
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\newpage
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\fig{MA-0064-87}{Front View of the Tape Drive Expansion Box}
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\newpage
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Both expansion boxes connect to the system box through an expansion
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adapter that attaches to the bottom of the system box. The expansion
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adapter has three connectors on the back labeled ports A, B, and C. Port
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A connects the tape expansion box to the system. Port B connects the hard
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disk expansion box to the system. Port C is reserved for future options.
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\figref{1-6} shows the back of a MicroVAX 2000 system box with an expansion
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adapter.
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\fig{MA-0135-87}{System Box with Expansion Adapter}
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\newpage
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\section{Options}
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\subsection{Internal Memory Options}
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Two additional memory modules are available for both systems. One is a
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2-megabyte memory module and the other is a 4-megabyte memory module.
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The memory module is located in the system box and is connected directly
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to the system module.
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\subsection{ThinWire Ethernet Option on MicroVAX 2000}
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ThinWire Ethernet is an option on the MicroVAX 2000. It comes standard
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on the VAXstation 2000. It adds the capability of connecting the system to
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the DECnet through the ThinWire Ethernet network. The option consists
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of a network interconnect module that is located in the system box and is
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connected to the system module through two 40-conductor cables.
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\section{FRU Locations}
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\figref{1-7} shows the locations of the FRUs in the system box. \figref{1-8}
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shows the locations of the FRUs in the expansion boxes.
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\fig{MA-0150-87}{FRU Locations in the System Box}
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\newpage
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\fig{MA-0133-87}{FRU Locations in the Expansion Boxes}
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