Contemporary Research 232-FMA User Manual

Contemporary Research

2

232-FMA FM Stereo Tuner

Table of Contents

Overview............................................................................................................................................. 3

Specifications...................................................................................................................................... 4

Physical .................................................................................................................................................4

Front Panel ............................................................................................................................................4

Rear Panel.............................................................................................................................................4

Includes ................................................................................................................................................4

Front Panel Programming................................................................................................................... 5

Mode 0: RF Tune Select..........................................................................................................................5

Mode 1: Baud Rate Select .......................................................................................................................5

Mode 2: Unit Address Select....................................................................................................................5

Mode 3: Not used...................................................................................................................................5

Mode 4: Front Panel Disable level ............................................................................................................5

Mode 5: Power-up Volume level ..............................................................................................................5

Mode 6: Special Test Mode (for factory testing) ........................................................................................5

Mode 7: Audio Decoding .........................................................................................................................5

Mode 8: Bass setting fixed at 0dB............................................................................................................5

Mode 9: Treble setting fixed at 0dB .........................................................................................................6

Front Panel Programming Quick Reference ....................................................................................... 6

RS-232 Control Protocol ..................................................................................................................... 7

Overview ...............................................................................................................................................7

General protocol specifications ................................................................................................................7

Command String Structure ......................................................................................................................7

General RS-232 Commands.....................................................................................................................8

Terminal Communication Commands .......................................................................................................9

RS-232 Command Hints and Tips.............................................................................................................9

Response Strings .............................................................................................................................. 10

Frequency/Source Status Response String .............................................................................................. 10

Audio Status Response String................................................................................................................ 10

Front Panel Mode Status Response String............................................................................................... 10

Control Cable Connections................................................................................................................ 11

Single Tuner ........................................................................................................................................ 11

Multiple Tuners, AV6x4 Router .............................................................................................................. 11

Rack Mounting.................................................................................................................................. 12

RK1 Single Unit Rack Mount .................................................................................................................. 12

RK2 Side-by-Side Rack Kit ..................................................................................................................... 12

Safety Instructions ........................................................................................................................... 13

Limited Warranty and Disclaimer ..................................................................................................... 14