• Standard front dimension 144mm x 144mm or 192mm x 144mm
• Individual operating push button for switching on and off with integrated LED for status indications of navigation and signal lights
• Additional LED-indications for power supply and system faults
• Automatic dimming of LED-indications, adjustable
• Integrated alarm buzzer
• Push button for acknowledgement of acoustic alarm with lamp test function
• Serial interfaces for connection to basic module AHD 901 G and interfaces to extension modules AHD 910 A for lamp control