Epson Multi-mode Data Controller MFJ-1278B User Manual

Epson Computer Accessories

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MFJ-1278B MULTI-MODE TABLE OF CONTENTS

Table of Contents

INTRODUCTION......................................................................................................... 1
COMPUTER INTERFACING...................................................................................... 4

MFJ Starter Packs .................................................................................................. 4
Computer Interface with MFJ Starter Pack ............................................................ 5
Computer Interface without MFJ Starter Pack ....................................................... 5

SERIAL PORT SIGNALS ............................................................................................ 5
COMPUTER WITH SPECIFIC SERIAL INTERFACES............................................ 6

Apple Macintosh .................................................................................................... 6
Commodore C64, C128 and VIC-20...................................................................... 7
IBM PCjr................................................................................................................ 7
Radio Shack Color Computer ................................................................................ 8
Color Computers .................................................................................................... 8
IBM PC/XT/AT/386/486 and compatibles Computer ........................................... 8
Other Computers with Nonstandard Serial Ports.................................................... 9

TERMINAL SOFTWARE REQUIREMENTS ............................................................ 10

Apple Macintosh .................................................................................................... 10
Apple II, II+, IIe, IIc .............................................................................................. 10
Commodore C64, C128 and VIC-20...................................................................... 11
IBM PCjr................................................................................................................ 11
IBM and Compatible Computers ........................................................................... 11
Radio Shack Color Computer ................................................................................ 12
Radio Shack Model 100/102 and NEC 8201 ......................................................... 12

MFJ-1278B SERIAL PORT PIN FUNCTIONS........................................................... 12
COMPUTER BAUD RATE ......................................................................................... 13

Autobaud................................................................................................................ 13
Changing Terminal Baud Rate ............................................................................... 14

VERIFYING SERIAL PORT OPERATION................................................................ 15
PARALLEL PRINTER PORT...................................................................................... 16

Printer Port Connection.......................................................................................... 16
Printer Consideration ............................................................................................. 17
Printer Port Test ..................................................................................................... 17

RADIO INTERFACING............................................................................................... 18

MFJ-1278B Radio Ports ........................................................................................ 18

RADIO PORTS CONNECTION .................................................................................. 19
HANDHELD RADIO CONNECTION ........................................................................ 20
RADIO INTERFACING METHODS .......................................................................... 21

Method 1: Direct Connection to Microphone and Speaker .................................... 21

Transmit Audio Level Adjustment for Method I Interface ............................... 21
Setting the Receiver Audio Input Level............................................................ 22

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