Radio Shack CCR-81 Operation Guide

2
Introduction
Your TRS-80 Network 3 Controller is specifically
designed to give you , the teacher, more freedom in
the classroom, as well as more efficient use of your
existing computer equipment.
The Network 3 Controller connects up to 16
independent AUXILIARY COMPUTERS ( sometimes
referred to as Student Stations) to a CENTRAL
COMPUTER ( or Host System ). While the Network 3
Controller and the CENTRAL COMPUTER attend to
such tasks as saving , loading , or printing out
student programs or data, you can devote more
time to your real job- teaching.
The Network 3 Controller also enables you to
use your entire computer system more efficiently
by allowing each student station access to the
CENTRAL COMPUTER 's disk drive and printer.
Instead of providing 16 separate printers , for
example, the Controller enables all computers in
the Network 3 system to use a single printer
without moving any equipment from one place to
another.
The Network 3 Controller can be used with any
TRS-80 computer that has an RS-232-C Interface , for
faster transmission of information.
In this manual , you 'll learn how to connect and
start up a Network 3 controlled system. For
instructions on using the Network 3 once it 's
started up, see the manual which comes with your
Network 3 software package .
It's important to remember that the Network 3
requires special software before you can use it. The
specific operation of the Network 3 depends solely
upon the capabilities of the software package
you're using.
What Is A
Network3 System?
A TRS-80 Network 3 System is made up of three
major components.You can also include optional
equipment (such as a printer) for special
operations. To
set up a Network 3 system , you'll
need:
Network 3 Controller . The Controller package
includes its own special power supply and a cable
for
connecting the Network 3 to your CENTRAL
COMPUTER.
Central Computer. This is your Computer and
can be any TRS-80 Model I, II, or III which has an
RS-232-C Interface. Note that most Network 3
software packages also require the CENTRAL
COMPUTER to have at least one disk drive.
Auxiliary Computers. These are the fully
independent computers used by the students and
can be any combination ofup to 16 TRS-80 Model I,
II, III,
or Color Computers.
Note: TRS-80 Model I's and Model Ill 's must be
equipped with RS-232 -C Interfaces .

Radio Shack CCR-81 Specifications

General

Brand	Radio Shack
Model	CCR-81
Category	Desktop
Language	English