TrolMaster LMA-11 Lighting Control Adapter P | For Phantom Ballasts

Which Fixtures the TrolMaster LMA-11 Is Cut For

The LMA-11 is the P adapter in the TrolMaster lighting control range, and the fixture decides the letter. TrolMaster makes a family of lighting control adapters and each letter is matched to a different dimming protocol. This is the P adapter and it is built for Phantom ballasts. The controller itself speaks the same digital language to all of them. Choosing the wrong letter is the most common mistake in this part of the range. The symptom is a light that does nothing, or one that sits at full. Read the dimming input on the ballast before deciding. What the adapter does is translation. A digital instruction arrives over RJ12, and an analogue voltage between zero and 11.5 volts leaves the other side. An LED on the body shows power. Setup is plug and play, with nothing to configure beyond making the connection. Working conditions run from thirty-two to a hundred and twenty-two Fahrenheit with humidity at ninety percent or less. One adapter comes in the box.

Current Limits and Wiring a Phantom Ballast Room

Maximum current from the adapter is 0.2 A, and that number is what decides how many fixtures one unit can serve. Each ballast draws a small current on its control input, so count the fixtures against the adapter rather than assuming one will cover the room. Check the ballast documentation for its control input draw and divide. A second adapter costs far less than chasing dimming faults that only appear at full load. Keep the control cabling away from the power runs where you can. A dimming signal is low voltage and long parallel runs beside a lamp cord will pick up noise. Fasten the adapter somewhere accessible rather than burying it above a canopy, because the LED on it is the first diagnostic anyone reaches for. The packed unit is 6.1 by 3.25 by 1.25 inches and weighs about fifty grams. Label the adapter with the room or the zone it serves at install time.

Key Features

• Fixture match: The P adapter, built for Phantom ballasts specifically
• Function: Converts a digital controller signal to an analogue voltage
• Output: An analogue signal running from zero up to 11.5 volts
• Maximum current: Two tenths of an amp, which caps how many fixtures it serves
• Connection: RJ12 socket back to the controller
• Indicator: An LED on the body shows power
• Setup: Plug and play, with nothing to configure
• Working range: Thirty-two to a hundred and twenty-two Fahrenheit
• Choosing: Match the adapter letter to the fixture, never to the controller
• In the box: One adapter

Technical Specifications