Check the listing for details. Doug Fleenor Designs ES2-FLEENOR 2-Button Wall Mounted DMX Controller. Condition: New. Listed at 686.87 USD. Doug Fleenor Design's Entry Station Two is a simplified entry station with two user assignable buttons. The buttons can be associated with any preset on the master. Presets are recalled by pressing one of the buttons. Entry Station Two is integrated as a slave in systems with master and power supply. The solid aluminum faceplate is designed to install over a standard single-gang electrical box. Connections to the Entry Station Two are power (2 wires) and DMX512 (3 wires). Power for the Entry Station Two can be supplied from a variety of sources, including a 10V class 2 "doorbell" transformer.Doug Fleenor Designs ES2 Entry Station Two Specifications:Connector: Phoenix Contact MSTB series 5-position two-part terminal blockConnector pin out:1 (C) DMX512 common2 ( -) DMX512 data -3 (+)DMX512 data +4 (C) Supply common (internally tied to pin1)5 (V) Supply voltage"hot"Input/Output circuit: ESD protected EIA-485 transceiver (LT1785)Indicators:Two green preset indicator LEDsOne bi-color Lockout (red), Time (yellow) & Inactive (green)User controls: Two preset push buttonsOption jumpers: When removed sets preset button addressPower input: 9 to 24 volts DC or 6 to 16 volts AC / 200mA per station (A 10 volt class 2 "doorbell" transformer is recommended for fixed installations)Color: Black anodized with optional laser engravingDimensions (HxWxD):Face Plate: 4.5" x 2.75" x 0.2"Face Plate Rear Inset: 4.15" x 2.4" x 0.1"Electrical Box Minimum Inside Dimensions: 3.5" x 2.1" x 1.25"Note NOTE: The ES2 is a slave station only It must be used in conjunction with a Preset 10 Architectural or Rerun Architectural operating as a master station.