Digital Equipment VT525 User manual


VT525ColorVideoTerminal
InstallationandOperating
Information
Order Number: EK-VT525-IN. A01

April 1994
Digital Equipment Corporation makes no representations that the use of its products
in the manner described in this publication will not infringe on existing or future
patent rights, nor do the descriptions contained in this publication imply the granting
of licenses to make, use, or sell equipment or software in accordance with the
description.
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.
DEC, VT and the DIGITAL logo, are trademarks of Digital Equipment Corporation.
Kensington is a registered trademark of Kensington Microware Limited.
IBM, ProPrinter, and PS/2 are registered trademarks of International Business
Machines Corporation. SCO is a trademark of Santa Cruz Operations, Inc. TVI is
a trademark of TeleVideo, Inc. UNIX is a registered trademark of UNIX System
Laboratories, Inc.
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 VT525.
© Digital Equipment Corporation 1994.
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 UsingColor ........................... 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 Clockfeature ....................... 3–2
3.1.2 Calculator feature . . . . . . . . . . . . . . . . . . . 3–3
3.1.3 Show Character Sets feature . . . . . . . . . . . 3–4
3.1.4 Bannermessage..................... 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
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—Serial Communication/Printer
Ports ............................. B–4
B–2 Comm2 and Comm3—MMJ Ports . . . . . . . B–5
B–3 Parallel Printer Port (Bidirectional) . . . . . . B–5
Tables
1Recommendations for Proper Setup and
Use............................... vii
A–1 Identifying and Correcting Problems . . . . . A–2
B–1 Standards Conformance and Approvals . . . B–7
iv

Preface
Overview
This guide is for users who want to install and configure the VT525
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 VT520/VT525 Video Terminal Programmer Information. See the
inside back cover for ordering 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.
If you experience pain or discomfort while using the terminal, take a
substantial break and review the instructions for posture and work
habits. If your pain or discomfort continues when you resume using
the terminal, 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 are in
a horizontal
position. Keep
the back of your
knees away
from the seat
so you do not
compress 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.
(continued on next page)
vii

Table 1 (Cont.) Recommendations for Proper Setup and Use
Adjust To . . .
6 Keep your upper arms straight down at your sides, elbows
close to your sides to support your arm weight. Forearms
should be at a 70° to 90° angle.
Head 7 Avoid neck strain. Your head should incline downward, but
no more than 15° to 20°.
Terminal 8 Keep eye level and the correct distance for proper vision.
Eyes 9 Avoid eye fatigue, which can be caused by glare, image
quality, uncomfortable furniture, eye height, and
uncorrected vision. If you cannot read the screen at
different distances, you may need special glasses. Relax
your eyes periodically by looking at distant objects.
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 movements.
Lighting Avoid direct lighting or sunlight on the screen, which
causes glare and reflections. The terminal screen has an
antiglare treatment to reduce glare. Place lighting behind
or to the side of your work area, and distribute the lighting
evenly on your work area. Adjust the terminal brightness
and the 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 23°C (68°F to 74°F)
Humidity 30% to 70%
Ventilation Provide adequate air ventilation for equipment operation
and to avoid fatigue.
Space
between
terminals
More than 70 cm (28 in) center to center, preferably more
than 152 cm (60 in).
viii

1
Installation and Set-Up
If desired, install the system box in its stand.
The VT525 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.
6
K
7
41 AC23
5

Comm 1 (male or female),

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
Z X C V B N
A S D F G H J K L
I O PT Y UW E R
M
Q
1 2 3 4 5 6 7 8 9 0
!#$ % ^&*( )
a
>
<
Return
Shift
?
/
.
,
:
;"
’|
\
}
]
-
-+
=
}
]
Help Do
Prev Next
Re-
move
Insert
Here
Find
Select
PF1 PF2 PF3
Enter
54
7 8 9 _
,
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
1 2 3 4 5 6 7 8 9 0
!#$ % ^&*( )
a-+
=
~
Z X C V B N
A S D F G H J K L
I O PT Y UW E R
M
Q
?
/
.
,
:
;"
’
}
]
Caps
Tab
Shift >
<
Ctrl Ctrl
_
Home PgUp
_
/
PgDn
End
Ins Del
Num
Lock
7 8 9
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
d i i
gt a l
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.
MA048093.GRA
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 VT525 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 extends the VT525 to act like four terminals in one.
Asession is an active connection between the terminal and a host
system. See Figure 1–3.
The VT525 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.
VT525 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 VT525 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
2.2.1 Using SSU Host Software
If your VT525 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:
$SSU ENABLE
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