A detailed discussion of all the available I/O
commands can be found in the Series 60 (Level 6)
Minicomputer Handbook, Order No. AS22.
Operator maintenance includes such preven
tive main tenance as normal checking, cleaning,
operating considerations, etc., performed period
ically on a routine scheduled basis. The purpose
of the maintenance is to keep the console in the
best operating condition, thereby reducing the
possibility of downtime.
The following list is a general guide to opera
o Always plug the console into a 3-wire
o Ensure that all covers are closed and
secured during operation.
o Avoid leaning or placing objects on any
part of the console.
o Turn power OFF when the device is not in
o No beverage should be on or near the
o No food should be on or near the console.
o Keep outside covers clean and free of
o Clean and dust, as necessary, the inside
areas accessible to the operator.
CONSOLE SPECIFICATIONS AND CHARAC
Table 10-2 is a summary of the specifications
and characteristics of the DKU9101 CRT Key
The CRT Keyboard Console Attachment con
sists of a device controller, console adapter, and a
console compatible peripheral. Figure 10-4 illus
trates the structure of the subsystem and its
relationship to the system.
CRT KEYBOARD CONSOLE
The device controller is a microprogrammed
peripheral controller which attaches to the Level
6 Megabus and is capable of supporting up to four
devices via a configurable series of adapters.
Device-specific functionality is provided by the
adapter and certain device-specific firmware in
the device controller.
TABLE 10-2. CRT KEYBOARD CONSOLE
SPECIFICATIONS AND CHARACTERISTICS
Standard layout; 60 keys
128 ASCII characters.
17.88in. (45 Al em); Sin.
(20.32cm) deep; 3 in.
(7 .62cm) high.
lS.12in. (46.02cm) wide;
17.50 in. (44.45 em)
deep; 13.12in. (33.32 em)
high; display and keyboard
depth is 23.75in. (60.32cm)
960-character screen; 80·
character line; 12 lines to the
image area; 64 upper case
ASCII characters; 5 by 7
character matrix; 54 square
inches of displayable screen
60mA or 20mA current loop;
Belll03A modem com
Each CRT keyboard console
requires its own Device-Pac
lEVEL 6 MEGABUS
1- - - ' - -
~ _ _ _ _ --.J
Figure 10-4. Device Interconnection/System