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SECTION 1
1.1
INTRODUCTION
North Star HSIO-4
GENERAL INFORMATION
The HSIO-4 is a 4-port serial input/output
board designed for use with the HORIZON.
can also be used with some other S-100 bus
systems.
This manual provides basic instructions on how
to install the HSIO-4 board in your HORIZON;
it also provides technical information and
detailed instructions for implementing a range
of HSIO-4 features and operating characteristics.
SECTION 1 describes HSIO-4 features and
capabilities and contains warranty
information.
SECTION 2 provides basic instructions on
how to unpack and install the HSIO-4 board
in a HORIZON.
SECTION 3 describes interface connections and
requirements; it also provides detailed
instructions on how to use the HSIO-4 to
establish communication links between the
HORIZON and a variety of peripheral devices.
SECTION 4 provides a functional block diagram
of the HSIO-4 and discusses the theory of
operation.
SECTION 5 provides troubleshooting procedures
to aid in isolating problems.
The APPENDICES furnish detailed technical
information, including schematic drawings,
RS-232 pin assignments, and a manufacturer data
sheet for the USART.
Every effort has been made to ensure the accuracy
of this manual. If you find errors or omissions
in this material or if you have suggestions on
how it can be improved, please write:
North Star Computers, Inc.
North Star Technical Services Group
14440 Catalina Street
San Leandro, CA
94577
User/Technical Manual
1
It
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