4 Chapter 1 Getting Started
This section describes basic operating procedures. There are four operational interfaces
for controlling the generator.
•Physical controls. Most of the generator’s features and functions are supported using
the front panel using the knobs and keys. Functions which are not supported using the
front panel include upgrading the firmware, creating and editing formats, creating and
editing images and reconfiguring the format and image knob lists.
•Command line. An ASCII command line interface, available through the RS-232 port,
allows you to send commands either interactively or as command files. All functions are
supported by the command line interface except upgrading firmware.
•Video Generator Manager (VGM). VGM is a Windows-based application that supports
most generator functions using a graphical user interface. When upgrading the
generator firmware, VGM must be used.
•GPIB Programmatic interface (optional). An IEEE-488 GPIB interface supports the
use of the 802 as a programmable video signal source in an automated test
evironment. All generator commands are supported through this interface.
Physical controls
The physical controls on the generator consists of the Format knob, Image knob, and eight
keys, arranged into four function groups: Image, Video Gate, Sync Gate, and Outputs. All
of the keys have built-in indicator lights. When illuminated, a key’s function is considered
on, or enabled.
Power sw itch
This rocker switch turns the power on and off. The power supply is auto switching and can
handle 110 or 220v.
Format knob
The Format knob is used to select a video signal format from a list of stored formats. A
format is a set of parameters that specifies the video and sync signal requirements of a
particular timing. Format parameters include timing, sync type, video type, display size,
and others. By turning the knob, you can scroll through a list of formats stored in
non-volatile memory. The list includes the factory default formats. The knob list can be
edited to add custom formats. If a format containing erroneous information is selected, the
generator turns off the outputs, and displays an error message.