Radio Shack CCR-81 Operation Guide

OPERATING THE NETWORK 3
Equipment Requirements
The TRS-80 Network 3 Controller connects up to 16 TRS-80 Model III micro-
com
puter s to a cent ral disk-e quipped TRS-80 Model III to share the disk storage
and printer. The minimum Host computer is a TRS-80 Model III with 32K of
memory, one
disk drive, and an RS -232C interface. A Student Station needs 16K of
memory, Model
III BASIC, and an RS-232C interface. The Network 3 Controller
requires 1 cable
(10 to 100 feet) for each Student Station and 1 cable for the Host
system.
Using the Network 3 System
Before doing anything else, you should make a backup copy of the " Network 3
Operating
System and NBASIC" diskette (hereafter referred to as the Network 3
software diskette) supplied
with this package, following the directions on page 33 of
this manual. You should also make a backup of the Student Station System
Software cassette, following the instructions on page 36. Use these backup copies
when
operating the Network, and store the original diskette and cassette in a safe
place
to protect them from damage.
Once you
have made a backup copy of the Network 3 software diskette and the
Student Station System Software cassette, follow the directions in the Network 3
Operation Guide which
came with the Controller to connect the Network 3 to the
Host system and Student Stations. Then turn on all equipment.
To load a
program from the Host computer into one or more Student Stations,
follow the steps below.
At the Network 3 Controller:
1. Make sure the Network 3 Controller is ON (the Power button on the front
of the Controller should be illuminated).
2. The Mode button should NOT be illuminated; if it is, press the Mode button
once and the light will go off.
At each Student Station:
3. Make sure each computer is ON (the ON / OFF switch is under the right side
of
the keyboard).
If the Student Station is equipped with the special ROM-based loader, follow the
initialization procedure described in the literature accompanying the loader; then
skip to Step 10 below.
If the Student Station is not equipped with the ROM-based loader, continue with
3

Radio Shack CCR-81 Specifications

General

Brand	Radio Shack
Model	CCR-81
Category	Desktop
Language	English