IBM 3174 Introduction

3174 Model 92R
The 3174 Model 92R is a small-cluster controller designed for remote operations. It
contains a Type 2 Communication Adapter that provides an X.21 interface (CCITT
V.11) for SNA/SDLC or X.25 remote link attachment. It has 2MB of base storage
and one 5-1/4-inch, 2.4MB, high-capacity diskette drive. A four-port terminal
adapter supports four terminals directly
or eight 3270 terminals through IBM 3299
Terminal Multiplexers.
Customizing is performed with a control unit terminal attached to port
0 of the 3174.
Any terminal can be attached to port 0 at other times. The 92R supports full
keyboard utilities.
Subsystem online tests and problem determination are performed through a
control unit terminal attached to any port
or multiplexer without interrupting other
terminals attached to the
3174. Offline tests are performed through the 3174
control panel.
The
3174 Model 92R does not support any customer-installable features.
Chapter 3. Models of the 3174 Establishment Controller 3-13

IBM 3174 Specifications

General

Brand	IBM
Model	3174
Category	Controller
Language	English