Operator`s manual

CAUTION
Do not operate the system without Digital-supplied slot
covers. The covers are required to protect the equipment
and to meet international regulatory standards. Do not
substitute other slot covers, as they may not meet the
required specifications.
The design of the module covers varies, depending on the type of module
installed in the slot. Modules requiring external cable connections such
as communications controllers have recessed covers that are riveted
directly to the module. The recessed module covers allow space for
connecting cables. Modules requiring no external cable connections such
as mass storage controllers are covered by flush covers. Empty slots are
also covered by flush covers, which may be single or double width. All
covers, except those covering empty slots, have a label identifying the
module installed in the slot.
Cables connecting your system to peripheral devices (such as terminals,
modems, and printers) are attached to communications controllers. Each
cable can contain multiple lines. The cables run over the top of the BA441
enclosure and towardsthe back, where the cables are split into individual
lines. These connections are described in more detail in the VAX 4000
Model 500 Operation manual.
1.2.2.4 Console Bulkhead Assembly
The console bulkhead assembly (see Figure 1–8) covers slots 1 through
5, and has several system controls, indicators and connectors.
NOTE
The console bulkhead assembly is visible when the chas-
sis is extended and viewed from the top (see Figure 1–8).
System Overview 1–13