Astronics Max-Viz 1500, Информационное руководство

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Astronics Max-Viz Max-Viz 1500 3091-00019 Rev M
1. INTRODUCTION
This document provides guidance on the installation, operation, and maintenance of the
Max-Viz 1500 Enhanced Vision System (EVS) product.
2. SYSTEM DESCRIPTION
The Max-Viz 1500 is comprised of two Line Replaceable Units (LRUs) designed to
provide the flight crew with enhanced visual awareness of terrain and potential
obstacles in the aircraft’s forward field of view.
 Sensor LRU
 Power Supply LRU
The Sensor LRU includes a long-wave infrared (IR) camera assembly that processes a
digital video signal with advanced and patented Automatic Gain Control (AGC)
algorithms, and sends it to the Power Supply as an RS-170 signal via coax cable. The
normal horizontal field of view is 53 degrees. When the ZOOM_IN discrete input signal
is activated, the field of view is switched to 30 degrees.
The Power Supply LRU provides the Sensor with power and all electrical interfaces. The
Power Supply receives and buffers the RS-170 video signal and sends it to a video
display. An interface control drawing showing the top-level system is available in
Appendix A.
The video image presented on a display represents a thermal scene of the area in front
of the aircraft and provides the flight crew with enhanced vision capability in low
visibility conditions.
2.1. Equipment Identification
The Max-Viz 1500 system components are identified below.
Name Part Number Description
Sensor 756500041 Max-Viz 1500 Sensor Assembly
Power Supply 756500042 Max-Viz 1500 Power Control Assembly
2.2. Electrical Characteristics
The Max-Viz 1500 does not require any supplemental heating or cooling from the
aircraft and the electrical characteristics are listed below.
Characteristic Specification
Voltage 28 VDC from aircraft power
Max Current at 28 VDC 5.0 A (140 Watts, heaters activated)