VT125 Graphics Terminal User Guide

Company:	Digital Equipment Corporation
Part:	EK-VT125-UG-002
Date:	1982-06
Keywords:	terminal graphics VT100
Supersedes:	EK-VT125-UG-001, VT125 Graphics Terminal User Guide

1 Operating Information
- General
- Terminal Operation
- Controls and Indicators
  - Monitor Controls
    - AC Voltage Selection Switch
    - AC Power ON/OFF Switch
  - Keyboard Controls
    - Standard Keys
    - Function Keys
  - Auxiliary Keys
    - SET-UP Keys
  - Visual Indicators
    - ON LINE
    - LOCAL
    - KBD LOCKED
    - L1 - L4
  - Audible Indicators
    - Keyclick
    - Long Tone
    - Series of Long Tones
2 SET-UP Features
- General
- SET-UP Features
  - Operator Preference
  - Communication Compatibility
  - Installation
- Feature Selection
- Entering and Exiting SET-UP
- Feature Memories
  - Operating Memory
  - User Permanent Memory
    - Store
    - Recall
    - Reset
  - SET-UP Default Memory
- SET-UP Feature Definitions
  - General SET-UP Features
    - On-Line/Local
    - Screen Brightness
  - SET-UP A Features
    - Tabs
  - SET-UP B Features
    - SCROLL
    - AUTO REPEAT
    - SCREEN BACKGROUND
    - CURSOR
    - MARGIN BELL
    - KEYCLICK
    - ANSI/VT52
    - AUTO XON/XOFF
    - US/UK CHARACTER SET
    - AUTO WRAP
    - LINEFEED/NEW LINE
    - INTERLACE
    - PARITY SENSE
    - PARITY
    - BITS PER CHARACTER
    - POWER
    - AUX PORTS BITS PER CHARACTER
    - AUX PORT SPEED
  - Transmit Speed
  - Receive Speed
    - Answerback Message
3 Transmitted Characters
- General
- Standard Keys
- Function Keys
  - Cursor Control Keys
  - Control Character Keys
- Auxiliary Keypad Keys
4 Received Character Processing
- General
- Errors
- ASCII Table and Received Characters
- Displayable Characters
  - Control Characters Received
- Sequences
- ANSI Sequences
- SET-UP Feature and Mode Selection
  - Set Mode
  - Reset Mode
  - ANSI Specified Modes
  - DIGITAL Private Modes
  - ANSI/VT52 Mode
  - Auto Repeat Mode
  - Autowrap Mode
  - Column Mode
  - Cursor Keys Mode
  - Linefeed/New Line Mode
  - Keypad Application Mode
  - Keypad Numeric Mode
  - Origin Mode
  - Screen Mode
  - Scroll Mode
- Character Sets and Selection
  - Select Character Sets
  - Single Shift 2
  - Single Shift 3
  - Select Graphic Rendition
- Scrolling
  - Scrolling Region
  - Set Top and Bottom Margins
- Cursor Position
- Tabs
  - Horizontal Tabulation Set
  - Tabulation Clear
- Line Attributes
  - Double-Height Line
  - Double-Width Line
  - Single-Width Line
- Erasing
  - Erase In Display
  - Erase In Line
- VT125 Communication and Graphics Protocol Controls
  - Device Control String
  - Device Control String Parameters
  - Delimit Image Format
  - Enter VT105 Emulator Mode
  - String Terminator
  - Media Copy
  - ANSI Parameters
  - Private Parameters
- Reports
  - Cursor Position Report
  - Device Attributes
  - Identify Terminal
  - Device Status Report
  - Requests
  - Responses
- Reset
  - Reset to Initial State
- Tests and Adjustments
  - Screen Alignment Display
  - Invoke Confidence Test
- Indicators
  - Keyboard Indicators
  - Load LEDs
- VT52 Compatible Sequences
- VT52 Modes
- SET-UP Feature and Mode Selection
  - Enter ANSI Mode
  - Alternate Keypad Mode On
  - Alternate Keypad Mode Off
- VT52 Character Sets and Selection
  - Enter Graphics Mode
  - Exit Graphics Mode
- VT52 Cursor Positioning
- VT52 Erasing
  - Erase to End of Screen
  - Erase to End of Line
- VT52 Reports
  - Identity
5 ReGIS Programming
- Introduction
- Definitions
- ReGIS Syntax
  - ReGIS Single Character Commands
  - Parentheses, Brackets, Pixel Vectors, and Quotes
  - Commas and Spaces
  - Control Characters
  - Order of Performance
  - Numeric Values
- Position
  - Coordinates
- Position Command
  - Absolute Position
  - Relative Position
  - Combining Absolute and Relative Positions
  - Null Position
  - Pixel Vectors
  - Temporary Pixel Vector Multiplier
  - Begin a Bounded Sequence of Coordinates
  - Start an Unbounded Sequence of Coordinates
  - End a Sequence of Coordinates
- Writing Commands
  - Pixels
  - Odd-Y Simulation
- Vector Command
  - Dot at Current Position
  - Vector from Current Position to Specified Position
  - Pixel Vectors
  - Bounded Sequence of Positions
  - Unbounded Sequence of Positions
  - Temporary Writing Controls
- Curves
  - Circles
  - Circle with Center at Current Position
  - Circle with Center at Specified Position
- Arcs
  - Arc with Center at Current Position
  - Arc with Center at Specified Position
- Open and Closed Curves
  - Interpolation of Curves
  - Unbounded (Open) Curves
  - Bounded (Closed) Curves
  - Temporary Curve Writing Controls
- Text
- Text Commands
  - Initial Text Defaults
  - Text
  - Text Character Cell Size
  - Text Character Height Multiplier
  - Text Character Spacing
  - Text Pixel Vector Spacing
  - Text Character Cell Size
  - Text Pixel Multiplier
  - Text String and Character Tilt Direction
  - Text Italic Tilt
  - Select Text Character Set
  - Store and Restore Options
  - Temporary Writing Controls
- Writing Controls
  - Initial Writing Control Defaults
  - Writing Modes
  - Complement Writing
  - Erase Writing
  - Replace Writing
  - Overlay Writing
  - Foreground Planes
  - Foreground Intensity and Color
  - Pixel Vector Length Multiplier
  - Negative Writing
  - Shading
  - Shading On or Off
  - Shading Character
  - Shading Reference Line
  - Patterns
  - Select Standard Pattern
  - Specify Binary Pattern
  - Set Pattern Multiplier
  - Custom Writing Control Definition
- Screen Controls
  - Initial Screen Control Defaults
  - Screen Scrolling
  - Screen Display Addressing Definition
  - Screen Erase
  - Screen Hardcopy Output
  - Screen Background Definition
  - Screen Output Map Definition
  - Screen Scale
  - Screen Time Delay
- Macrographs
  - Clear All Macrographs
  - Macrograph Definition
  - Macrograph Invocation
- Character Cell Controls
  - Select Character Set for Loading
  - Associate Name with Current Character Set
  - Load Character Cell
- Reports
  - Report Character Set Selected for Loading
  - Report Contents of a Macrograph
  - Report Use of Macrograph Storage
  - Report Cursor Position
6 VT105 Emulation
- Introduction
- Entering Graph Drawing Mode
- Definitions and Limitations
- Select Graph Drawing Field
- Selecting Desired Display
  - Loading Control Register 0
  - Enabling Graphs and Histograms
  - Enabling Strip Charts and Shade Lines
  - Loading Control Register 1
  - Enabling Graph Markers, Vertical Lines, and Horizontal Lines
- Forming Graph Drawing Data Characters
  - Selecting Upper and Lower Data Characters
  - Load Data Sequences
  - Frequent Data Entry Errors
  - Largest Data Character Transmitted First
  - Zero Valued Characters Not Transmitted
- Loading Shade Line
- Loading Graph Memories
- Histogram Data
- Loading Graph Marker Memory
- Displaying Vertical Lines
- Displaying Horizontal Lines
- Load Starting X-Coordinate
- Entering Strip Chart Data
  - Single Strip Chart Data
  - Dual Strip Chart Data
7 Communications
- General
- Connecting to Computer Port
- Connecting to Auxiliary Port
- Serial Character Format
- Break Signal
- Full-Duplex Communication
- Electronic Industry Association Interface
- SET-UP and Communications
- Control Functions
- Communication Cables
- Block Diagrams
- Input Buffer Overflow Prevention
  - XON and XOFF Control Characters
- Effects of Reset and Tests
- Transmit Buffers
8 Installation
- General
- Site Considerations
- Inspection
- Installation Procedure
- Power Up and Checkout Procedure
9 Maintenance and Troubleshooting
- General
- Maintenance
- What to do in the Event of a Problem
- VT125 Self-Tests
  - Preparing for Self-Tests
- Power-Up Self-Test
- Computer Port Data Loopback Self-Test
- Auxiliary Port Data Loopback Self-Test
- Display Test
- Video Bit Map Memory Test
- VT125 Self-Test Error Codes
10 Options
- General
- 20 mA Current Loop Interface Option
  - Installation
  - Computer Data Port Loopback Self-Test
  - Advanced Video Option
  - Installation
  - Advanced Video Option Test
- VT1XX-CB or -CL Installation into VT100 and VT105
- Installation
11 Accessories and Supplies
- General
- Accessories
- Keycaps
- Cables
- Power Cords
- Hardware Aids
- Alignment Templates
- Lot Priced Kits
- Components and Loose Piece Parts
- Related DIGITAL Documentation
- Ordering Information
A Specifications
B SET-UP B Summary
C Transmitted Character Summary
D Programming Summary
E ANSI Code Extension Techniques
F Creating Compatible ReGIS
G HLS Color System in the VT125
H ReGIS Command Listing
I Graphics Printer Character Processing
Glossary

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VT125 Graphics Terminal User Guide

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