Introduction
The AHD-POS 10 is a navigation lights monitoring system designed for ships to ensure safety by preventing collisions at sea. It is mandatory for ships to have navigation lights active from sunset to sunrise and during restricted visibility. The system monitors essential lights such as masthead, portside, starboard side, and stern lights, with variations for special vessels.

Functional Description
The AHD-POS 10 can monitor up to ten lights, checking their operational status and detecting defects. It is integrated into the electrical circuit between the switch and the lamp. The system uses CAN-Bus for communication and provides alarms via a relay and visual/auditory signals on a display. It supports both AC and DC lamps and includes safety features like semiconductor fuses to handle short circuits or overcurrent.

Apparatus Assembly
The system includes a pluggable terminal block for lamp connections and power supply inputs. It is designed for installation in a distribution box or switch cabinet and requires a termination resistor if no additional devices are connected.

Installation
The AHD-POS 10 is installed between the switch and the lamp, with specific terminals for each lamp. It connects to a colour display via CAN-Bus, which provides a visual representation of the ship's navigation lights and alarm status.

Technical Data
AHD-POS 10: Operates on 18-32 VDC, consumes 150 mA, and functions in temperatures from -10°C to 65°C. It has a degree of protection of IP 00 and dimensions of 215 mm x 120 mm x 55 mm.
Colour Display: Operates on 9-32 VDC, consumes 450 mA, and has a resolution of 400 x 240 pixels. It is protected to IP 67 at the front and IP 65 at the rear, with dimensions of 210 mm x 130 mm x 95 mm.

Conclusion
The AHD-POS 10 is a critical component for maritime safety, ensuring that navigation lights are operational and providing immediate alerts in case of failures. It is designed for easy integration and reliable performance in various environmental conditions.