S-COM 7K - Page 12

7K •
xii
Installation.......................................................... C-1
Theory of Operation.................................................................................................................. C-1
Pre-Programming .............................................................................................................. C-1
Default Information............................................................................................................. C-1
Power Supply..................................................................................................................... C-1
Repeater Interfacing .......................................................................................................... C-2
Control Receiver Interfacing .............................................................................................. C-2
External Device Interfacing................................................................................................ C-2
Audio Gating ...................................................................................................................... C-2
Tone Generation................................................................................................................ C-2
Memory Protection............................................................................................................. C-3
Cables ...................................................................................................................................... C-3
Repeater Receiver COR........................................................................................................... C-3
Repeater Transmitter PTT ....................................................................................................... C-5
Repeater Receiver Audio ......................................................................................................... C-6
Repeater Transmitter Audio ..................................................................................................... C-7
Repeater CTCSS Decoder....................................................................................................... C-8
Control Receiver COR.............................................................................................................. C-9
Control Receiver Audio........................................................................................................... C-10
DC Power ............................................................................................................................... C-10
Logic Inputs ............................................................................................................................ C-11
Logic Outputs ......................................................................................................................... C-11
Telephone Line Connection.................................................................................................... C-12
FCC Part 68 Rules........................................................................................................... C-13
Input and Output Connectors ................................................................................................. C-15
Audio Level Potentiometers.................................................................................................... C-16
Message Level Potentiometers .............................................................................................. C-17
DIP Switches .......................................................................................................................... C-18
Testing The Controller-To-Repeater Transmitter Interface.................................................... C-18
Testing The Controller-To-Repeater Receiver Interface........................................................ C-19
Testing The DTMF Decoder................................................................................................... C-19
Command Sources.......................................................................................................... C-20
Local Control.................................................................................................................... C-20
Performing the Tests ....................................................................................................... C-20
Falsing ............................................................................................................................. C-21
Real-Time Clock..................................................................................................................... C-21
Parts Lists and Schematics .............................. D-1
Controller Main Board .............................................................................................................. D-1
Speech Synthesizer Module (SSM) ....................................................................................... D-10
Telephone Interface Module (TIM) ........................................................................................ D-13
Audio Delay Module (ADM) ................................................................................................... D-17