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What is the control method of the LED Profile Spotlight?(Part Two)

Views: 14     Author: Site Editor     Publish Time: 2020-11-18      Origin: Site

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In the last month, we have talked about the DMX512 control system,  based on the ending doubts of the previous article , today, let us discuss the other control method of the LED Profile Spotlight: RDM--- Remote Device Management.

led profile spotlight 2


RDM is a protocol enhancement to USITT DMX512 that allows bi-directional communication between a lighting or system controller and attached RDM compliant devices over a standard DMX line. This protocol will allow configuration, status monitoring, and management of these devices in such a way that does not disturb the normal operation of standard DMX512 devices that do not recognize the RDM protocol. 


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As Remote Device Management is a protocol that sits on top of the DMX data standard for lighting control. With the addition of RDM, the DMX512 system becomes a bi-directional (half-duplex) system. The controller is able to send out a question to devices on the wire, which can then respond with an answer. Still the theater project sample, when the led profile spotlight only install DMX512, due to the signal is unidirectional( from controller to fixture only), if the light fixture has any problems, the fixtures can't send back the signal to or give any answers to the controller; However if the light fixtures also install RMD control system, above problems can be solved. 


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In order to well understand the RDM, here is the one more example for your reference: Think of an RDM transaction as a conversation – the lighting desk says "tell me your DMX address" and the led profile spotlight fixture responds with "my address is 32". This is known as a GET command. Next the controller can send a SET command, such as set your DMX address to 65, and the fixture can respond to acknowledge this change. In this way, through GET and SET commands and responses, the RDM protocol allows a control desk to modify and monitor the DMX system in ways never possible before. Therefore, the RDM protocol will change the way that lighting technicians setup and maintain their lighting rigs, generally speaking, it can provide:

*Identification and classification of connected devices (Fixtures, Dimmers, Splitters, etc.)

*Addressing of devices controllable by DMX512

*Status reporting of fixtures or other connected devices

*Configuration of fixtures and other DMX devices


Due to the outstanding with the advantages and muti-functions, so far more and more upgraded led profile spotlight are asking for compatible RMD. Besides the classic model PVC 150W/200W/300W led profile spot light, most die casting aluminum led profile spot light by The One Studio have built-in RDM control system. If you happen to look for the RDM/DMX control led profile light, welcome to check the products on our website or contact our sales team directly. 


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