Digital Equipment VGB25 User manual

VGB25ColorVideoTerminal
InstallationandOperating
Information
Order Number: EK-VGB25-IN. B01

January 1995
FCC ID: A09-VGB25
Note: This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of the FCC rules. These limits
are designed to provide reasonable protection against harmful interference in a
residential installation. Any changes or modifications made to this equipment may
void the user’s authority to operate this equipment.
This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful
interference to radio and television reception; however, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
 Re-orient or relocate the receiving antenna.
 Increase the separation between the equipment and the receiver.
 Connect the equipment to an outlet on a circuit different from that to which
the receiver is connected.
 Consult the dealer or an experienced radio/TV technician for help.
ADDS is a trademark of Applied Digital Data Systems, Inc.
IBM, ProPrinter, and PS/2 are registered trademarks of International Business
Machines Corporation. Kensington is a registered trademark of Kensington
Microware Limited. SCO is a trademark of Santa Cruz Operations, Inc. TVI is
a trademark of TeleVideo, Inc. UNIX is a trademark of X/Open Company Ltd.
WY and WYSE are registered trademarks of Wyse Technologies.
The Energy Star emblem does not represent EPA endorsement of any product or
service. A monitor with a ferrite core on the video line may be used with the VGB25.
All Rights Reserved.
Printed in Taiwan.
This document was prepared using VAX DOCUMENT Version 2.1.

Contents
Preface ....................................... v
1 Installation and Set-Up
1.1 Installation ........................... 1–2
1.2 Set-Up . . ............................. 1–4
1.3 Using Color ........................... 1–9
2 Multiple Sessions
2.1 Overview ............................. 2–1
2.2 Using a Terminal Server with TD/SMP . ..... 2–2
2.2.1 Using SSU Host Software ............. 2–2
2.2.2 Opening Another Session . ............. 2–2
2.3 Tips for Using Multiple Sessions ........... 2–3
3 Desktop Features
3.1 Invoking Desktop Features . . ............. 3–1
3.1.1 Clock feature . . ..................... 3–2
3.1.2 Calculator feature ................... 3–3
3.1.3 Show Character Sets feature ........... 3–4
3.1.4 Banner message ..................... 3–4
3.2 Keyboard Summary ..................... 3–5
iii

4 Defining Keys
4.1 Define Key Editor . ..................... 4–1
4.1.1 Creating a New Function . ............. 4–2
4.1.2 Creating a Key Sequence . ............. 4–3
4.1.3 Redefining an Alphanumeric Key. . . ..... 4–4
A Maintenance and Troubleshooting
A.1 Cleaning your Video Terminal ............. A–1
A.2 Troubleshooting . . . ..................... A–1
A.3 Installing the ROM Cartridge ............. A–3
B Specifications
Figures
1–1 VT Keyboard Layout ................. 1–3
1–2 PC-Style Keyboard Layout ............. 1–3
1–3 Communications Port Set-Up Screen ..... 1–8
4–1 Define Key Editor, Select Function . ..... 4–3
B–1 Comm1 and Comm2– Serial
Communication/Printer Ports........... B–4
B–2 Comm3—9-Pin EIA 232 Port ........... B–4
B–3 Parallel Printer Port (Bidirectional) . ..... B–5
Tables
1Recommendations for Proper Setup and
Use............................... vii
A–1 Identifying and Correcting Problems ..... A–2
iv

Preface
Overview
This guide is for users who want to install and configure the VGB25
video terminal. This guide describes how to connect cables and enter
the Set-Up menu to make changes, as needed. This guide also has
reference tables for troubleshooting, specifications, and compose
sequences.
For more detailed information on programming the terminal, refer to
the VGB20/VGB25 Video Terminal Programmer Information.
Environment Note
This product has been designed and manufactured to minimize
the impact to the environment. The packaging is recyclable
and the terminal can be returned for proper disposal. The
terminal also has power management features that exceed
the Environmental Protection Agency (EPA) Energy Star
requirements for saving energy.
Before You Start
A small flat-blade screwdriver may be needed to install the
communication or the printer cables.
v

Conventions
The following conventions are used in this document:
Convention Meaning
Caps Lock Print Screen Indicates two keys that you must press in
combination. Press and hold the first key while
you press the second key.
Lock 0 Indicates two keys that you must press in
sequence. Press and release the first key before
you press the second.
Caps Lock Alt F11 Indicates three keys that you must press in
combination, holding the first two down while
pressing the third.
kpd Indicates a key on the numeric keypad.
Proper Setup and Use
Important Information
Certain recent scientific literature suggests that poor posture, work
habits, or office equipment setup may cause injuries. Other literature
suggests that there is no cause and effect. Because the safety of
our users is a great concern, it is important to take the precautions
described in Table 1.
IMPORTANT—If you experience pain or discomfort while using
the monitor, take a substantial break and review the instructions
for posture and work habits. If your pain or discomfort continues
when you resume using the monitor, discontinue use and report the
condition to your job supervisor or physician.
vi

Table 1 Recommendations for Proper Setup and Use
Adjust So that your . . .
Chair 1 Feet are flat on the floor or footrest, if needed.
2 Legs are vertical forming a right angle to the floor.
3 Weight is off your thighs, and they are horizontal to the
floor. Keep the back of your knees away from the seat
to avoid compressing the area behind them, which could
restrict the blood flow.
4 Upper body is erect and your lower back is supported with
a backrest.
Keyboard 5 Wrists are straight and do not flex more than 15°. They
may be supported but should not rest on sharp edges.
6 Upper arms are straight down at your sides, and elbows
are close to your sides to support your arm weight.
Forearms are at a 70° to 90° angle.
1
2
3
4
5
6
7
98
(continued on next page)
vii

Table 1 (Cont.) Recommendations for Proper Setup and Use
Adjust To . . .
Head 7 Avoid neck strain. Your head should incline downward, but
no more than 15° to 20°.
Monitor 8 Keep eyes and top of screen level and at the correct
distance for proper vision. If you cannot read the screen at
different distances, you may need special glasses.
Eyes 9 Avoid eye fatigue, which can be caused by glare, image
quality, uncomfortable furniture, eye height, and
uncorrected vision. Relax your eyes periodically by looking
at distant objects.
Lighting Avoid direct lighting or sunlight on the screen, which
causes glare and reflections. The screen has an antiglare
treatment to reduce glare. Adjust the monitor’s brightness
and contrast controls as needed.
Noise Keep background noise at a minimum. Background noise
above 65 dBA is tiring. Sound-absorbing materials, such
as curtains, carpeting, and acoustic tile, can help reduce
background noise.
Temperature 20°C to 26°C (68°F to 78°F)
Humidity 30% to 60%
Ventilation Provide adequate air to avoid fatigue.
Space
between
monitors
More than 70 cm (28 in) center to center, preferably more
than 152 cm (60 in).
Work
Breaks Take periodic work breaks. Morning, lunch, and afternoon breaks meet most recommendations. Take advantage of
work breaks to move around and do other activities.
viii

1
Installation and Set-Up
If desired, install the system box in its stand.
The VGB25 comes with a stand. You can use the system box without
the stand under your monitor, or you can install the system box in
the stand. Instructions are illustrated on the stand. A wire clip is
included to dress the cables neatly along the back of the system box.
Installation and Set-Up 1–1

Installation and Set-Up
1.1 Installation
1.1 Installation
Connect the cables to the system box.
5 76
K
3
4AC 2
31
! Comm 1, " Comm 2, # Comm 3 (Serial printer), $ Keyboard,
% Kensington lock socket, & Parallel printer, ' Monitor
Connect the cables to the monitor.
Check your monitor manual for correct installation.
Push the system box and monitor power switches on.
A green light in the switch indicates that power is on.
Power Up Selftest
The terminal takes a few seconds to warm up and complete its power
up self-tests. Then, the terminal should display ‘‘Selftest OK.’’ If a
problem occurs, go to the Appendix A.
1–2 Installation and Set-Up

Installation and Set-Up
1.1 Installation
Keyboards
Figure 1–1 VT Keyboard Layout
X
ZXCVBN
ASDF GHJ KL
IOPTYUWE R
M
Q
1234567890
! # $%
^
&*
()
a
>
<
Return
Shift
?
/
.
,
:
;"
’|
\
}
]
-
-+
=
}
]
Help Do
Prev Next
Re-
move
Insert
Here
Find
Select
PF1 PF2 PF3
Enter
54
789_
,
6
321
0.
PF4
~
Ctrl
Tab
Shift
Alt
Function
Compose
Character Alt Function Compose Character
F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F17 F18 F19 F20
(ESC)
North American/United Kingdom (Word Processing Version)
>
<
MA-1520a-92.PS
Figure 1–2 PC-Style Keyboard Layout
Page
Up
HomeInsert
Esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 Print
Screen Scroll Lock
SetUp Break
Pause
Page
Down
EndDelete
BackSpace
1234567890
! # $%
^
&*
()
a-
+
=
~
ZXCVBN
ASDF GHJ KL
IOPTYUWE R
M
Q
?
/
.
,
:
;"
’
}
]
Caps
Tab
Shift >
<
Ctrl Ctrl
_
Home PgUp
_
/
PgDn
End
Ins Del
Num
Lock
789
456
32
1
0.
+
Enter
*
GSF-MK2510-29-DG
North American
Num Lock Caps Lock Scroll Lock
Alt Altl
LJ-00226a-TI0.PS
Lock Enter
|
\
}
]
Shift
di i
gtal
Installation and Set-Up 1–3

Installation and Set-Up
1.2 Set-Up
1.2 Set-Up
Overview
Use Set-Up to examine or change the terminal operating features.
The Set-Up menu summary at the bottom of the screen are the
communication features to get you started in operating the terminal.
There are many more Set-Up features in the terminal that you may
wish to change.
Before changing the communication Set-Up features, contact your
System Manager if necessary.
Printer operations are suspended upon entering Set-Up and are
resumed upon exiting Set-Up.
Entering/Exiting Set-Up
To enter or exit Set-Up, perform the following procedures:
On a . . . Press . . . Refer to . . .
VT keyboard F3 Figure 1–1
PC keyboard Caps Lock Print Screen Figure 1–2
1–4 Installation and Set-Up

Installation and Set-Up
1.2 Set-Up
Moving within a Set-Up Menu
Use the arrow keys (
(
,
*
,
+
,
)
) to move among the menus or
within a list, or to select buttons.
In a
menu . . . Indicates . . .
. A pull-right submenu is available.
. . . A dialog box is available for you to specify more information.
 a
 b
 c
The menu item with the filled-in circle is enabled. Only one
of these items can be enabled at a time.
=
The menu item with the checkbox is enabled.
Press Enter Return Do or Select to start the action or to choose the
currently highlighted feature.
A dimmed menu item does not apply to the currently selected mode.
Caution
If you disable the Display . CRT Saver feature, an image
may etch onto the screen, which may shorten the terminal’s
useful life.
Installation and Set-Up 1–5

Installation and Set-Up
1.2 Set-Up
Select the Set-Up language.
This language selection is for Set-Up only and does not affect
keyboard, character set, or printer settings. As you make changes
to some Set-Up parameters, the Set-Up summary line will reflect
those changes.
11
123456
! Port selected, " Transmit speed (9600), Parity (N), Word
size (8), Stop bits (1), # Character set, $ Keyboard language,
% Emulation mode, & Firmware version.
1–6 Installation and Set-Up

Installation and Set-Up
1.2 Set-Up
Configuration
The VGB25 allows you to open up to four sessions depending on the
communications connections and the host software. As a minimum for
each session (S1, S2, S3, and S4), determine the following menu items,
and note any change here that you make from the default value.
Menu item Default S1 S2 S3 S4
Terminal type .
Emulation mode VT525
Keyboard . Keyboard
language English
Communication .
Port select See Figure 1–3.
Communication .
Word size 8 bits
Communication .
Parity None
Communication .
Transmit speed 9600 baud
Communication .
Receive speed Transmit speed
Printer . Printer type ANSI1
Color . Assign colors . . .
1American National Standards Institute
Installation and Set-Up 1–7

Installation and Set-Up
1.2 Set-Up
Notes
For a session to be enabled, it must be assigned to a comm
port. If you assign more than one session to the same comm
port, you must use a terminal server that supports Terminal
Device Session Management Protocol (TD/SMP), or a host that
supports Session Support Utility (SSU).
A port cannot be assigned as both a comm port and a printer
port at the same time.
Selecting Comm = ‘‘  none’’ disables a session. A session that
is dimmed is disabled, but it can still be configured in Set-Up.
Figure 1–3 Communications Port Set-Up Screen
MA048493.GRA
1–8 Installation and Set-Up

Installation and Set-Up
1.3 Using Color
1.3 Using Color
You can control the terminals display colors. You may choose color
settings to match your software, to emulate another terminal, or to
suit your preference. Depending on the settings you choose, for each
session you can assign colors for various text uses and defined a map
of 16 colors (8 text and 8 background) from a larger palette of 4096
colors. Changes in color selections become visible upon entering new
text and when the screen is refreshed.
If you want to . . . From the Color submenu in Set-Up, choose . . .
Let your application specify
text colors by using ANSI SGR
sequences
Select color mode
.  ANSI SGR color.
Use Assign colors . . . to choose the
default text and background colors from a
map of 16 colors. The default background
color is black (00 on the scale).
Use Define colors . . . to make fine
adjustments to individual colors or
background.
Display text attributes (bold,
reverse, blink, and underline)
in different colors
Select color mode
.  Alternate color.
Then, choose Alternate text colors . . . to
assign colors to each combination.
Use Define colors . . . to make fine
adjustments to individual colors or
background.
Emulate WYSE 325 color ASCII color mode .  Color. Use WYSE
325 keystroke functions, Ctrl 0 ... 9kpd,
to select from the color palette.
Emulate the appearance of a
monochrome ASCII terminal ASCII color mode
.  Mono.
Installation and Set-Up 1–9

Installation and Set-Up
1.3 Using Color
If you want to . . . From the Color submenu in Set-Up, choose . . .
Choose the window frame and
icon colors Assign colors . . .
Erase text to the text
background color (PC style) Erase color
.  Text background.
Erase text to the screen
background color (VT style) Erase color
.  Screen background.
Save your settings.
Use one of the following procedures:
Save . . . Select menu item . . .
Active session only Save settings
All sessions Session . Save settings for all
Then, press Enter or Return .
Restore previously saved settings.
Use one of the following procedures:
Restore . . . Select menu item . . .
Active session only Restore settings
All sessions you saved Session
. Restore settings for all
Factory defaults for all
sessions Action
. Restore factory defaults
Then, press Enter or Return .
1–10 Installation and Set-Up

2
Multiple Sessions
2.1 Overview
Multiple sessions extend the VGB25 to act like four terminals in one.
Asession is an active connection between the terminal and a host
system. See Figure 1–3.
The VGB25 supports up to four sessions using virtual terminals.
Each virtual terminal maintains the full keyboard and display state
of a real physical terminal but shares a single keyboard and display
with other virtual terminals. Before you can login using a virtual
terminal, it must be connected to a host computer.
VGB25 session virtual terminals can be connected directly to a host
computer through any of the three serial communication ports on the
back of the terminal. Since there are only three comm ports, this
method alone can only support three sessions.
To use a fourth session or to reduce the number of serial comm lines
needed, more than one session must be connected through a single
comm port. The VGB25 allows this using a session management
protocol, called TD/SMP (Terminal Device/Session Management
Protocol). TD/SMP allows two or more sessions to share a single
comm line, as long as the other end of the comm line supports the
protocol. To enable TD/SMP at the terminal, you simply assign more
than one session virtual terminal to the same comm port in Set-Up.
TD/SMP is available on most terminal servers or host systems with
SSU software. If you are using a terminal server, check with its
documentation to determine if it can run TD/SMP.
Multiple Sessions 2–1

Multiple Sessions
2.2 Using a Terminal Server with TD/SMP
2.2 Using a Terminal Server with TD/SMP
At the Local> prompt, enter the following command:
Local> set port multi enable
Return
Continue with your login procedure.
To permanently set a terminal server port to use TD/SMP, type:
Local> define port multi enable
Return
Log out from your terminal server, then log back in so your DEFINE
command will take effect.
2.2.1 Using SSU Host Software
If your VGB25 is connected directly to a host computer without a
terminal server, you can still use TD/SMP by running the Session
Support Utility (SSU) on your host computer. On a system that has
SSU software, such as OSF/1 or OpenVMS, enable sessions as follows:
$MCR SSU
Return
On a UNIX-style system, open the first using:
%SSU
Return
2.2.2 Opening Another Session
Once TD/SMP is enabled, you can open a new session and switch
between them as follows:
1. Press the F4 (Session) key on a VT keyboard; or press
Caps Lock 0 kpd on a PC keyboard.
2. To go directly to a particular session, press Caps Lock 1 ,2,3
or 4on the numeric keypad. The session number for the current
session is displayed at the lower left of the screen.
2–2 Multiple Sessions