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THE AH504 central warning I/O Expansion unit

The AH504 provides an additional 13 switched and 4 analogue inputs to enhance the number of inputs available in the AH500 and AH502SD warning panels. Connecting over RS232, it provides for more comprehensive alerting, particularly useful for complex aircraft types and where envelope and profile alerts require aircraft configuration data.

Description Gallery Features In the Box Downloads

Description

Using the AH504 all landing gear limit switches can be monitored in addition to landing and flap position levers.  All doors and hatches can be independently monitored and even powered circuits including hydraulic pump, starter motors and air conditioning power can be monitored via the AH-OPTO opto relays.  Additional analogue inputs can monitor temperatures, multiple voltages and current shunts.

The unit measures 5.94in(151mm) by 1.26in(32mm) and has a depth of 0.9in(23mm) as detailed in the Panel Drawing and Installation sheet here.

Features

13 x protected, filtered and buffered volt free, switched inputs
4 x 0-32Volt, 0.01 Volt resolution analogue inputs
RS232 interface to connect to AH500 or AH502SD programmable annunciators
Power 10-32V DC

In the Box

AH504 I/O Expansion
AH504 Installation kit
Specifications and installation manual

Other Products

AH503 – SW45090 Aircraft Annunciator Switch

SW45090

THE AH503 – SW45090 LED Annunciator switch

the AH503 aircraft instrument panel ANNUNCIATOR switch features daylight readable, user-customised legends with integrated snap action momentary and snap action latching options

AH500SD Programmable annunciator

CWP Central Warning Panel

AH500SD PROGRAMMABLE VOICE AND LEGEND ANNUNCIATOR

The AH500sd combines flight, engine and aircraft configuration data to generate voice and visual alerts.

The unit is programmed to warn off against switched, analogue and EFIS data inputs based on the switched state, value threshold or combinations of inputs to generate envelope alarms.

Envelope alerts could include oil pressure profiles, speed/ configuration envelopes, gear not down and oxygen alerts.

Data is gathered from directly connected switches and analogue inputs as well as being able to take flight and engine data from Electronic Flight Information Systems (EFIS) and Engine Monitors when available via serial buses.

Alerts are mapped to custom voice and/or sunlight readable and auto dimming captions with integration to a remote Master Caution, Master Warning and alert acknowledgement switch.

The side mounted SD card allows for easy adjustment of programming and voice files.

AH501 Master Caution/Warning Switch

Master Caution Warning

THE AH501 Master caution / warning Annunciator Switch

The AH501 is a high-quality snap action switch combined with direct sunlight readable LED Aviation Red and Yellow captions for use as a Master Caution Master Warning indicator with acknowledgement switch.

AH502SD Programmable annunciator

Aircraft Warning Panel

AH502SD PROGRAMMABLE VOICE AND LEGEND ANNUNCIATOR

The AH502sd combines flight, engine and aircraft configuration data to generate voice and visual alerts.

The unit is programmed to warn off against switched, analogue and EFIS data inputs based on the switched state, value threshold or combinations of inputs to generate envelope alarms.

Envelope alerts could include oil pressure profiles, speed/ configuration envelopes, gear not down and oxygen alerts.

Data is gathered from directly connected switches and analogue inputs as well as being able to take flight and engine data from Electronic Flight Information Systems (EFIS) and Engine Monitors when available via serial buses.

Alerts are mapped to custom voice and/or sunlight readable and auto dimming captions with integration to a remote Master Caution, Master Warning and alert acknowledgement switch.

The front mounted SD card allows for easy adjustment of programming and voice files.

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