Link Communications RLC-6 Manual Download Page 12

Copyright 1993 Link Communications

     The following charts are organized into four sections, depending on your combination of linking and audio modes:

     Hub / Voted
     Hub / Mixed
     Chain / Voted
     Chain / Mixed

Each section contains eight charts extracted from the screen while running the RLC-6 Mode Editor program, available
from Link Communications.  It allows you to program your own modes any way you choose.  These modes are designed
to be as general as possible, but if you have specific needs that they don't account for, get the mode editor and design
your own.  In any case, the descriptions of these modes will help you understand how the RLC-6 works and what can be
done with it.  Each row the chart contains three types of information.  The four columns on the left labeled "Active COR
Inputs" represent the 16 different combinations of the four COR inputs that could be active at any one time.  One way to
think of the first row is, "If none of the ports are keyed up, what do I want the RLC-6 to do?"  The second row shows an
'x' in column three under "Active COR Inputs," meaning "What do I want the RLC-6 to do if only link 3 is keyed up?" 
There are 16 rows containing every possible combination of active COR inputs, describing what is done in each
situation. The next four columns labeled "Audio Output Connected To" identify what audio source will be connected to
each transmitter.  The audio sources are (the main port is also called port 0):

     main - output the audio that is being received on the main port 
     link 1 

- output the audio that is being received on link 1

     link 2 

- output the audio that is being received on link 2

     link 3 

- output the audio that is being received on link 3

     mix    

- output all of the active audio sources mixed together (except those that are 

    muted)

     tx/cw  

- output the audio from the external audio input

     mute 

- mute the audio from the corresponding port (more info following)   

     off  - turn the audio output for that port off (signified as a dot on the chart)

Special note should be taken when the "Audio Output Connected To" selection is "mute".  This should not be

thought of as an audio source in the same sense as "main", "link1", and "off".  Instead, it causes the audio from that
port to be totally blocked from going to any other port or being part of the mixed audio.  Its only practical use is keeping
audio from a disconnected port from being part of the mixed audio;  therefore it is only used when mixed audio (rather
than voted audio) is selected.  Its limitations are that when it is used, audio from that port is not available to any of the
ports, even if it is selected specifically, and not audio can go out a muted port.  This will be expained further where it is
used.  

9b

Summary of Contents for RLC-6

Page 1: ...LINK COMMUNICATIONS RLC 6 4 PORT LINK EXPANSION INTERFACE 899 Parkway Lane Billings MT 59101 4652 406 245 5002 V 2 1 June 2 1993...

Page 2: ...Logical COR Sense Lines 5 Audio Adjustments Receiver Audio Adjustments 6 JP1 Audio Test Point Pinouts 6 Transmitter Audio Output Impedance Selection 7 Transmitter Audio Output Adjustment 7 TXIN CW or...

Page 3: ...T BE CONSIDERED TO AVOID DAMAGE DUE TO STATIC ELECTRICITY WHEN HANDLING THE BOARD BE IN CONTACT WITH GROUND HANDLE THE BOARD BY ITS EDGES AND DO NOT TOUCH THE INDIVIDUAL CHIPS WITHOUT BEING DISCHARGED...

Page 4: ...t the receiver s audio the 4066 passes the audio When the link controller chooses to disconnect a receiver from the board s operation its receiver s COR will not unsquelch the incoming audio All audio...

Page 5: ...w going voltage does not go below 2V the link controller will not accept it as a valid COR A simple way of lowering your COR voltage is by adding external diodes in series with your COR signal Each di...

Page 6: ...ignal The individual HUB linking modes are covered in the mode descriptions section CHAIN Linking When the RLC 6 is set to be in the CHAIN linking mode the individual links can PTT other links This mo...

Page 7: ...the same time intermediate modes might be selected while the user is selecting their intended mode For example The RLC 6 is set for Mode 0 control lines 0 1 2 are all inactive 5V remember that they ar...

Page 8: ...er with a known tone about 1 Khz and adjust the input level pot MIN to 2V peak peak 1 4V RMS or a level that is not into clipping Note that to increase some of the levels the pot must be turned counte...

Page 9: ...level This finishes the audio level adjustments TXIN ADJUSTMENT The TXIN audio input is usually connected to the main transmitter audio bus you may not use it at all It can be used to send CW or voice...

Page 10: ...alse MODE CONTROL LINES 1 2 3 0 H H H 1 H H L 2 H L H 3 H L L 4 L H H 5 L H L 6 L L H 7 L L L TERMS H High Voltage 5V or an open pin L Low Voltage 0V or a grounded pin The RLC 6 internally pulls up th...

Page 11: ...ort There is only one audio mixer on the RLC 6 which contains the mixed audio from all of the ports including main that are not muted This means that if the main receiver is keyed up and the the main...

Page 12: ...ach situation The next four columns labeled Audio Output Connected To identify what audio source will be connected to each transmitter The audio sources are the main port is also called port 0 main ou...

Page 13: ...link3 A A A x A A A A A x A link2 A A A x A A A A A x x link2 A A A x A A A A x A A link1 A A A x A A A A x A x link1 A A A x A A A A x x A link1 A A A x A A A A x x x link1 A A A x A A A x A A A A m...

Page 14: ...enever link 1 is keyed up it goes out main Whenever main is keyed up it goes out link 1 The other links are ignored Mode 2 Active COR Inputs Audio Output Connected To Active PTT 0 1 2 3 0 1 2 3 0 1 2...

Page 15: ...n is keyed up it goes out link 3 The other links are ignored Mode 4 Active COR Inputs Audio Output Connected To Active PTT 0 1 2 3 0 1 2 3 0 1 2 3 A A A A A A A A A A A A A A A x A A A A A A A A A A x...

Page 16: ...ink 1 is not if it is not out voted link 3 goes out main Whenever main is keyed up it goes out both connected links Mode 6 Active COR Inputs Audio Output Connected To Active PTT 0 1 2 3 0 1 2 3 0 1 2...

Page 17: ...ected To Active PTT 0 1 2 3 0 1 2 3 0 1 2 3 A A A A A A A A A A A A A A A x link3 A A A x A A A A A x A link2 A A A x A A A A A x x mix A A A x A A A A x A A link1 A A A x A A A A x A x mix A A A x A...

Page 18: ...e for mixed and voted audio modes This is because with only one link port connected there can never be more than one audio source to choose from obviously you wouldn t count yourself so no decisions n...

Page 19: ...ink2 A A A x A A A A A x x link2 A A A x A A A A x A A link1 A A A x A A A A x A x link1 A A A x A A A A x x A mix A A A x A A A A x x x mix A A mute x A A A x A A A A main main A A x x A x A A x A ma...

Page 20: ...er main is keyed up it goes out both link 1 and link 3 Mute is used for the same reasons discussed for Mode 4 above Mode 6 Active COR Inputs Audio Output Connected To Active PTT 0 1 2 3 0 1 2 3 0 1 2...

Page 21: ...HAIN VOTED Mode 0 Active COR Inputs Audio Output Connected To Active PTT 0 1 2 3 0 1 2 3 0 1 2 3 A A A A A A A A A A A A A A A x link3 link3 link3 A x x x A A A x A link2 link2 A link2 x x A x A A x x...

Page 22: ...A A A x A A A A main A A A x A A x A A x A main A A A x A A x A x A A main A A A x A A x A x x A main A A A x A A x x A A link1 main A A x x A A x x A x link1 main A A x x A A x x x A link1 main A A x...

Page 23: ...Active COR Inputs Audio Output Connected To Active PTT 0 1 2 3 0 1 2 3 0 1 2 3 A A A A A A A A A A A A A A A x A A A A A A A A A A x A link2 link2 A A x x A A A A x x link2 link2 A A x x A A A x A A...

Page 24: ...k1 main A main x x A x x x x A link1 main A main x x A x x x x x link1 main A main x x A x See note on mode 4 above Mode 6 Active COR Inputs Audio Output Connected To Active PTT 0 1 2 3 0 1 2 3 0 1 2...

Page 25: ...d To Active PTT 0 1 2 3 0 1 2 3 0 1 2 3 A A A A A A A A A A A A A A A x link3 link3 link3 A x x x A A A x A link2 link2 A link2 x x A x A A x x mix mix link3 link2 x x x x A x A A link1 A link1 link1...

Page 26: ...A A x A A x A A x A main A A A x A A x A x A A main A A A x A A x A x x A main A A A x A A x x A A link1 main A A x x A A x x A x link1 main A A x x A A x x x A link1 main A A x x A A x x x x link1 ma...

Page 27: ...x A x A A x A x link1 A link1 A x A x A A x x A mix link2 link1 A x x x A A x x x mix link2 link1 mute x x x A x A A A A main main A A x x A x A A x A main main A A x x A x A x A link2 mix main A x x...

Page 28: ...mix mix A mix x x A x x x x A link1 main mute mix x x A x x x x x mix mix mute mix x x A x See note on mode 4 above Mode 6 Active COR Inputs Audio Output Connected To Active PTT 0 1 2 3 0 1 2 3 0 1 2...

Page 29: ...link1 x x x x x x x A mix link2 link1 mix x x x x x x x x mix mix mix mix x x x x This mode has many compromises The main port carries mixed audio anytime more than one port is keyed up If main is al...

Page 30: ...SMITTERS If there is not an active COR there will be no audio Is there audio present on JP1 see Audio Adjustment Are the audio out adjustments turned up up may be counterclockwise Are the receivers co...

Page 31: ...C17 C18 C24 C25 100pF C26 C27 C29 4 1 C50 100uF 5 1 D1 1N914 6 1 JP1 6 PIN HEAD F 7 1 JP2 2 HEAD JUMPER 8 1 P1 25 PIN RA F 9 1 P2 25 25 EDGE 10 1 P3 10 10 HEADER 11 5 Q1 Q2 Q3 Q4 Q9 2N7000 12 4 Q5 Q6...

Page 32: ...______________________________________________ 20 2 U1 U2 2732A 45 21 4 U3 U4 U5 U6 4051 22 1 U9 74HC123A 23 1 U13 LM7805 24 1 U14 LM317 25 2 U15 U17 74HC08 26 1 U16 4066 27 1 U18 74HC86 28 1 U19 74HC...

Page 33: ...TROL RX SIGNALING INV MAIN COR 23 MIX COR IN ROUTED TO S COM CONTROL RX COR CONNECTOR 26 USER 1 ACTIVE LOW NOT IMPLEMENTED UP TO USER 27 USER 2 ACTIVE LOW NOT IMPLEMENTED UP TO USER 28 USER 3 ACTIVE L...

Page 34: ...AIN LINKING MODE ON H C LED ON INDICATES VOTED AUDIO ON V M PLEASE OBSERVE THE CORRECT POLARITY OF THE INTERFACE CABLE CONNECTING THE LED BOARD TO THE RLC 6 P3 CONNECTION NOTE IF NO TRANSMITTERS ARE C...

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