Digital Equipment Letterwriter 100 User manual

EK-LWI 00-IN-001
Letterwr
Installatio

by EducationalServices
of
ital Equipment Corporation

First Edition, June 1982
Copyright
@ 1982 by Digital Equipment Corporation
All Rights Reserved
The material in this manual
is for informational
purposes and
is subject to change without notice.
Digital Equipment Corporation assumes no
responsibility for any errors that may appear in
this manual.
Printed in U.S.A.
The following are trademarks of Digital Equipment
Corporation, Maynard, Massachusetts.
DEC DECnet IAS
DECUS DECsystem-10 MASSBUS
Digital Logo DECsystem-20 PDT
PDP
DECwr iter RSTS
UNIBUS
DIBOL RSX
VAX Ed uSystem VMS
VT

CONTENTS
INTRODUCTION
APTER 1 SITE CONSIDERATIONS
CHAPTER
2 UNPACKING AND REPACKING
....
Unpacking ............................................. 2-1
CHAPTER
3 INSTALLATION INFORMATION
......................................
~nstallationChecklist
.....................................
Installation Procedures
.........................
Nylon Cable Tie Removal
................
AC 1nput'Voltage Range Selection
...
Option ~nstallation ..........................
..........................
Line Cord Installation
....................
Interface Cable Installation
...................
Ribbon Carkridge Installation
.................
Single Sheet Paper Installation
..........................
Roll Paper ~nstallation
................
Loading Tractor Feed Paper/Forms
Power-Up
..............................e.........
............................
Printhead Adjustment
Terminal Self-Test
..............................
JUMPER SELECTION
Site Considerations
............................. 1-2
iii

INTRODUCTION
The Letterwriter 100 User Documentation Package describes all
models of Letterwriter 100 terminals. The documents are for three
general audiences:
@ the hardware installer who needs specific installation
and checkout information,
@ the operator who needs general operating information, and
@ the applications programmer who needs interface and
control function descriptions.
Letterwriter 100 documentation
is divided into three books:
a Installation Guide
@ Operator Guide
e Programmer Reference Guide.
This installation guide describes how to unpack, install, power
up and check out Letterwriter 100 terminals. The guide
is divided
into the following chapters
:
Site Preparation -- describes the enviromental and power
considerations for the Letterwriter 100. Read this chapter before
installing the terminal.
ter 2 Unpacking/Repacking -- Detailed illustrations show how
to unpack and repack the terminal.
apter
3 Installation -- includes the procedure to install and
verify proper operation of the Letterwriter 100.

Chapter 4 Jumper Selection -- describes removing the answerback
protect and auto answerback jumpers.
WARNINGS, CAUTIONS
AND NOTES
In this guide, warnings, cautions, and notes are used for specific
purposes. Warnings highlight information that prevents personal
injury. Cautions highlight information that prevents damage to
the terminal. Notes highlight general information.

CHAPTER
SITE CONSIDERATIONS
Install the Letterwriter 100
terminal in an area that
is free
from excessive dust, dirt,,
corrosive fumes, and vapors. To
prevent overheating, do not block
the ventilation openings on the
bottom of the terminal. Table
1-1
lists terminal environmental and
power requirements. Figure
1-1
shows terminal dimensions,

Table 1-1 Site Considerations
Site Consideration Specification
Temperature
lgO to 48' C (50' to lC'dO F)
Relative Eumidity !.P to 9f? percent with a rnaximut-n
wetobulb temperature of 2s0
C
(92 F) anc? c7 minimum dew point
of 2O
C (36' F) noncondensing
Input Voltage
90 to 128 VAC
18F to 255 VAC
(ski tch selectable)
Power Consunption Printing
45 wztts maximum
Nonprintinq
25 watts maximum
Power Feceptacle Nonswi tched
, three prong,
grounded receptacle