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www.lightronics.com 

Lightronics Inc. 

 

 

 

 

 

509 Central Drive, Virginia Beach, VA 23454 

 

 

 

 

       (757) 486-3588 

 
 
 
 
 
 
 
 

 

RD122 

 

RACK MOUNT DIMMER 

 
 
 
 
 
 

 

 
 

OWNER’S MANUAL 

 
 

VERSION 1.4 

 

11/23/2021 

 

 
 
 
 
 
 

Summary of Contents for RD-122

Page 1: ...www lightronics com Lightronics Inc 509 Central Drive Virginia Beach VA 23454 757 486 3588 RD122 RACK MOUNT DIMMER OWNER S MANUAL VERSION 1 4 11 23 2021...

Page 2: ...ough slots on the side and exits through holes in the bottom of the face plate Make certain these ventilation holes are not obstructed Do not place the RD122 where it will be exposed to moisture or ex...

Page 3: ...play Release the MENU button when you see the message Resetting the unit causes the following actions 1 Channel patch is set to 1 to 1 2 All channels are set to DMR relay mode turned off 3 The externa...

Page 4: ...er there is a control signal present and one or more faders are at full on The fan will drop to half speed a few minutes after all faders are lowered to full off and will stop shortly after the contro...

Page 5: ...sequence backwards ACTIVATING A CHASE PATTERN A chase stored in the RD122 is activated by connecting together Switch Input and Switch Common Pin 6 and 7 of the 7 pin Phoenix connector or pins 5 and 9...

Page 6: ...nsity of the whole chase pattern may be set using the menu system 2 Press and hold the front panel SELECT button until the front panel display appears as shown below You will have to hold the button d...

Page 7: ...are correctly patched or set 3 Check the control cable between the dimmer and console 4 Verify the loads and their connections OWNER MAINTENANCE There are no user serviceable parts inside the unit The...

Page 8: ...el to Flashing Dimmer Channel SELECT Advance to Next Channel Set Flashing Channel to Relay Dimmer Mode RLY Relay Mode DMR Dimmer Mode SELECT Advance to Next Channel Set Remote Switch Function Not Used...

Page 9: ...Page 9 of 11 RD122 RACK MOUNT DIMMER Version 1 4 OWNER S MANUAL 11 23 2021 www lightronics com Lightronics Inc 509 Central Drive Virginia Beach VA 23454 757 486 3588 REAR PANEL CONNECTION OPTIONS...

Page 10: ...T DIMMER Version 1 4 OWNER S MANUAL 11 23 2021 www lightronics com Lightronics Inc 509 Central Drive Virginia Beach VA 23454 757 486 3588 CONTROL SIGNAL CONNECTIONS FOR LMX PROTOCOL CONTROL SIGNAL CON...

Page 11: ...SIGNAL CONNECTORS USED ON THE RD122 PIN 3 PIN LMX 3 PIN DMX 5 PIN DMX 7 PIN PHOENIX 9 PIN DB9 1 LMX COMMON DMX COMMON DMX COMMON DMX COMMON LMX COMMON 2 LMX POWER DMX DATA DMX DATA DMX DATA LMX POWER...

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