Operator`s manual

1.2 Major Units
The following subsections describe the major units of the VAX 4000 Model
500 system and their functions. A full description on how to use the
system and options can be found in the VAX 4000 Model 500 Operation
manual.
1.2.1 Front Assemblies
The functions of the front assemblies of the VAX 4000 Model 500 are
described in the following sections.
1.2.1.1 Mass Storage Shelf
The mass storage shelf (see Figure 1–3) extends across the front of the
enclosure. The shelf can contain an optional TK50, TK70 or TF85 tape
drive with up to three RF-series ISEs. Tapeless systems can have up
to four RF-series ISEs. Each ISE has its own panel with controls and
indicators. Instructions for using ISEs and the tape drive can be found
in the VAX 4000 Model 500 Operation manual.
System Overview 1–5