I-O 2677e Ethernet Display User s Guide
Printer Operation
5
Introduction
This chapter provides a brief overview of the I-O 2677e Ethernet Display.
Overview
The I-O 2677e Ethernet Display is a simple to use IBM AS/400 iSeries 5250 display and printer device.
Connection to the IBM host is accomplished over the Ethernet link using TN5250e (a TCP/IP display
and printing protocol created for use with IBM iSeries AS/400 hosts).
Configuration is required only on the 2677e as the IBM host will automatically create display devices
and, if desired, a print device, writer and spooler. The IBM host will either create its own name for the
display or printer session, or you may setup a name of your choice. The IBM host must be configured
to use TCP/IP, TN5250e and set for automatic device configuration.
With TN5250e, the IBM host recognizes two types of display devices, (3477fc for color or 3477fg for
monochrome) and one type of printer device, a 3812 laser printer.
The TN5250e display emulation functions just like I-O s 2677m Modular Twinax Display using the same
122 and 102-key 5250 keyboards. All typical twinax display functions are implemented in the 2677e.
This allows users to move from legacy twinax displays (whether I-O s own products, IBM s or another
competitor s product) to an Ethernet environment without losing any functionality or relearning
procedures or keyboards.
I-O s implementation of TN5250e printer emulation has been enhanced with a 3812 to 4214 conversion
capability. This allows not only laser printers, but also dot-matrix and thermal printers to be attached to
the 2677e and appear to the IBM host as a 3812 laser printer.
Print jobs sent from the IBM host are issued in IBM s EBCDIC character set and use SNA Character
String (SCS) command structure. The 5250 Printer Emulation converts EBCDIC to ASCII and the SCS
c
ommand structure to the printer’s command structure (PCL, Epson, or Proprinter).
I-O also has included a number of advanced features in the I-O 5250 Printer Emulation. These include
the ability to send printer specific commands as part of the SCS data stream that the IBM host does not
know the printer is capable of performing. Other features include I-
O’s bar code language, graphing
language, and even color support.
N
OTE
:
C
ERTAIN DOT
-
MATRIX PRINTER FUNCTIONS SUCH AS BACK SPACE
,
BOLD
,
UNDERSCORE OR
OVERSTRIKE ARE NOT SUPPORTED THROUGH
IBM’
S
TN5250
E
.
F
OR
F
ORMS
A
LIGNMENT MESSAGES
,
CHANGE THE
F
ORM
F
EED OPTION IN THE HOST PRINTER CONFIGURATION TO
*CONT.
Standard Features
I-O 2677e Ethernet Display contains the following features:
Display sessions supported
26 +
Host status indicators on the 25
th
line
Yes
Record/Playback function key descriptions
No
Display emulation supported
3477FC/FG
80/132 split screen support
No
75/60 hertz screen support (color/monochrome)
Yes
Printer sessions supported
1
Printer emulations supported
3812
3812 to 4214 SCS command conversion
Yes