Radio Shack Telephone Interface II Operation Guide

Recorder Model
User-Generated
Pre-Recorded
Tapes
Radio Shack Tapes
CTR-80, CTR-BOA 5-7
4-6
Recommended Volume Settings for Radio Shack Cassette Decks
When Used with TRS-80 Model Ill
(With the CTR-40, CTR-80, and CTR-80A, tum the control to the left to
increase volume. With the CTR-41, tum the control to the right.)
When information is being loaded from the cassette tape, two asterisks will
appear on the screen. The one on the right will flash on or
off as the program is
read in.
If the asterisks do not appear, or the one on the right does not flash,
then the volume setting is probably too low. Increase the volume and
try again.
If you have a Model III this may be an indication that the tape's baud rate is dif-
ferent than the Computer's baud rate. (All Radio Shack Model I Level II pre-
recorded cassettes are recorded at 500 baud rate, so Low baud rate must be
selected when they are loaded on the Model III.) Try resetting the baud rate
from high to low
or vice versa (See your Operation Manual).
Use the reset button to stop the cassette and return control to you if loading
problems occur.
Radio Shack programs are recorded at least twice on each tape. Following this
practice when you record programs on tape will give you a back-up
if one does
not load properly
or if it becomes damaged.
Important Note: The CTR-41 requires that you keep the supplied '' dummy
plug" in the MIC jack at all times. However, the other models should never be
used with the
''dummy plug.''
Level I
Sometimes you will get an error message during an attempted CL0AD . This
means that some information was lost or garbled. Adjust the volume level
slightly and try again.
Level II (Also Model ill BASIC)
In case of an error message, proceed as above. In Level II, there is also a rare
case in which the program is not loaded correctly even though no error message
is generated. So, after
CLOADing a program, be sure to LIST it. If some data was
garbled, then at some point in the listing the display will be filled with meaning-
less words and characters. Adjust the volume and
try again.
Hints and Tips
Computer tapes should be stored in a relatively dust-free area (a cassette case is
recommended) and protected from high temperatures. Magnetic and electrical
fields may alter recorded information, so avoid placing the tape near them

Radio Shack Telephone Interface II Specifications

General

Brand	Radio Shack
Model	Telephone Interface II
Category	Desktop
Language	English