Vt420 Models; Vt420 Features - Digital Equipment VT420 Service Manual

1.1 VT420 Models
The VT420 is a monochrome text terminal that provides all VT320
features plus enhancements. The VT420 has a 359 mm (14-inch) diagonal
monitor with a flat, antiglare screen. The monitor can display 24, 25, 36,
or 48 lines of text in an 80- or 132-column format. The last line of each
session is reserved for a status line. An attachable tilt-swivel base lets
the user adjust the viewing angle for optimum comfort.
There are three models of the VT420 video terminal:
• North American
(VT
mode)
• Worldwide
(VT
mode)
• Worldwide
(VT
mode and PC TERM mode)
The worldwide models come in two versions, standard and low-emission.
1.2 VT420 Features
The following list includes the features that are common to the North
American and model and two worldwide models. Table 1-1 lists the
differences between the three models. The worldwide model with PC
TERM mode can use the standard ANSI (LK401), short ANSI (LK421),
or PC (LK443/LK444) keyboard. See Installing and Using the VT420
Video Terminal with PC Terminal Mode for details on the features of the
different keyboards.