Asynchronous Emulation Adapter (Aea) Feature For Ascii Connectivity - IBM 3174 Introduction Manual

Asynchronous Emulation Adapter (AEA) Feature for ASCII
Connectivity
The Asynchronous Emulation Adapter (AEA) Feature consists of both hardware and
microcode and requires a second diskette drive or one fixed disk drive.
This adapter expands the connection capability for IBM 3270 display stations and
printers, allowing them to connect to ASCII hosts and public data networks, as well
as allowing ASCII display stations and printers to connect to IBM and ASCII hosts.
Figure 2-1 shows an overview of 3270 and ASCII terminal emulation.
• Three emulation adapters can be installed in Models 1L, 11L, 1R, 11R, 2R, 12R,
3R, and 13R of the 3174, for a total of 24 ASCII ports.
These device attachments are in addition to the maximum of thirty-two 3270
terminals.
• One emulation adapter can be installed in Models 51R, 61R, 52R, 62R, and 63R
of the 3174, for a total of eight ASCII ports.
These device attachments are in addition to the maximum of sixteen 3270
terminals. The number of device addresses supported by non-SNA controllers
is 16.
Public
Data
Ne
4
0rkS
D D
I
IBM
Host
channelorTP
ASCII
I
Host
I
-
-~~g~2p-
--- --- -- ---:
D
3270
Display Stations
3270
Printers
EIA 232D
3174 with
Asynchronous
Emulation Adapter
I
I
I
I
I
I
I
I
I
~
I \
ASCII
Display Stations
Figure 2-1. Overview of 3270 and ASCII Terminal Emulation
2-2
IBM 3270 Information Display System 3174 Establishment Controller Introduction
ASCII
Printers