Cockpit Dimmer Unit provides control of the integral lighting of Overhead, Instrument and Pedestal Panels located in the cockpit. Cockpit Dimmer Unit has adjustable 0-28VDC PWM, 0-5VDC analog and 0-28VDC analog output channels. Each of analog and PWM outputs of the Cockpit Dimmer Unit can programmed independently according to four different states of the NVG and DIM discrete inputs. Brightness level of connected units are controlled by DIM and NVG discrete inputs and three independent 0-28VDC analog inputs for adjusting the outputs independently. Output channels are turned on and off according to three detent inputs. All connected units can be tested at high brightness with the TEST discrete input. Also, these output channels can be controlled via RS-422 serial communication interface. The Cockpit Dimmer Unit has discrete outputs corresponding to DIM and NVG discrete inputs.
• Each Channel is Configurable Independently as a Curve
• Configurable Analog and Digital Control Interface to Control the Output Channels
• IBIT/PBIT/CBIT Capabilities
• LOG Capability
• Single LRU Compact Design and Easy to Integrate
• DO-254 DAL C Compliant
• The cockpit dimmer unit is used to dim the overhead, instrument and pedestal panels in the cockpit of the helicopter or aircraft.
• RS-422 Serial Communication Interface
• 3 x 0-28VDC Analog and Detent Input
• 30 x Adjustable 0-28 VDC PWM Outputs
• 9 x Adjustable 0-28 VDC Analog Outputs
• 12 x Adjustable 0-5 VDC Analog Outputs
• Discrete Inputs and Outputs
• Power: 18VDC - 32VDC
• Nominal Supply Voltage: 28VDC
• Weight: 1.3kg
• Dimension (L x W x H) (mm): 167 x 180 x 63.5
• Operating Temperature: -40°C to +70°C
• Operating Altitude: 40,000ft
• RTCA DO-254
• MIL-STD-3009
• MIL-STD-704F
• RTCA DO-160G
TRL 7/9
