ACMS - Airborne Communications Management System
The ACMS is a flexible control and display system for the management of aircraft communications and radio navigation equipment, integrating audio and control facilities.
The system is modular and flexible, can be stand-alone or integrated with other avionics systems, and is configurable to meet
any user’s operational requirements. Customisation is done through equipment and application software selection.
SYSTEM FEATURES
- Digital audio
- Powerful digital communications bus structure
- Programmable human-machine interfaces to meet specific user requirements
- Reduced operator workload (integrated audio, intercom, control and display)
- Night vision goggle (NVG) compatible and direct sunlight readable anti-glare flat displays
- Modular, flexible and expandable hardware and software architecture
- Capable of integrating radio navigation, audio and communication equipment (analogue and/or digital)
- Multiple redundancy and back-up features
- Looms to avionics bay replaced by 2 x twisted pair cables
- Built-in system test
DIGITAL BUS
- The Digital Bus is an ITU-T G703/G704 based serial bus for distribution of audio, control or status information.
- Primary plus secondary Bus system.
- Watchdog-initiated override feature.
- Manual override facility.
CMU
- The Communications Management Unit (CMU) contains a number of modules that provide the following functions
- Equipment control and status monitoring.
- Audio management
- Interface (analogue audio/digital/discretes)
- GPS (Passive frequency hopping synchronisation and aircraft backup GPS)
- Warning tones and synthetic speech generation
- Gateway (eg MIL-STD 1553B, ARINC 429, etc)
- Duplication of modules for redundancy purposes is configurable according to customer requirements.
- Customers specified communication and radio navigation products may be fully integrated with the audio or communications control system as required.
- Full provision for integration with Mil-Std-1553B based avionics systems.
GCP
- The General Control Panel (GCP) provides integrated control, display and audio functions.
- The GCP is a compact, NVG compatible unit providing full audio and intercom control together with the control of radio navigation and communications functions. A graphics display is used.
- The GCP is fully software configurable to meet customer HMI operational requirements.
- Can operate in conjunction with Multi Function Displays.
- Gateway for MIL-STD-1553 and ARINC 429 based equipment.
FILLGUN
System application software and mission specific data can be downloaded into the system prior to a mission with a fillgun (optional feature). Extraction of mission data and information after a mission is also possible.
REDUNDANCY AND BACK-UP CAPABILITY
- Highly redundant Digital Bus with graceful degradation modes.
- Duplication of equipment is possible to customer requirements.
- GCP’s an control equipment directly using bypass links
- CMU is a dual redundant device
- Emergency intercom is available
- No central processor.
INTERCHANGEABILITY
Softkeys are provided for audio level adjustment and control on the GCP. Through a loom wired addressing scheme the GCP as well as the CMU, are interchangeable irrespective of the system configuration or aircraft. This reduces equipment variety in customer requirements and inventories.
SYSTEM SPECIFICATION
COMMUNICATIONS MANAGEMENT UNIT (CMU) |
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INTERFACES: |
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- 2 Mbit/sec ITU G 703/G704
- 32 x open collector, 0V to 28V
- 16 x opto-isolated, 0V to 28V
- 12 x input and 6 x bi-directional ports.
- Impedance, from 50W to 10kW.
- Signal levels, from 30mV to 1V
- (Factory settable higher voltages are available)
- MIL-STD-1553B (Full Bus Controller)
- 8 Tx & 8 Rx ARINC429 Ports
- 8 x RS485 or 8 x RS422 or combinations thereof
- Off = 0V, On = 28V
- Standard GPS Antenna
- 5 x interpose relays, software controllable
- 28V DC (max 32V, min 20V)
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MODULES: |
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TIP :
ASSP :
GPSP :
1553P :
LIM :
ARINC429 :
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Audio & Stored Speech Processor
GPS Processor
MIL-STD-1553B Bus Controller & Remote Terminal
Line Interface Module
ARINC429 Processor
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OTHER FEATURES: |
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Stored Speech Alarms :
Tone Alarms :
Time (GPS) :
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240 sec memory capacity
Multiple alarms can be generated
Time synchronised frequency hopping control for radios
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DIMENSIONS: |
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Height :
Width :
Depth :
Mass :
Temperature :
Environmental :
EMI/EMC :
Software :
Power Consumption :
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193mm
123mm
320mm
7.2kg
-40ºC to 65ºC
MIL-STD-810E, RTCA/DO160D
MIL-STD-461D, RTCA/DO160D
RTCA/DO-178B level C
45W |
GENERAL CONTROL PANEL (GCP) |
INTERFACES: |
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Primary & Secondary Bus :
Discretes (Programmable :
Input/Output) :
PTT Input Discretes :
Device Selection :
Audio Ports :
Serial interface ports :
External on/off control :
External Lamp Test Input :
External Lighting Control :
Dual power supply input :
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2 Mbit/sec ITU G 703/G704
24 x open collector, 0V to 28V
8 x opto-isolated, 0V to 28V
4 x opto-isolated, 0V to 28V
4 x opto-isolated, 0V to 28V
8 x bi-directional ports. Impedance, from 50W to
10kW. Signal levels, from 30mV to 1V (Factory
settable higher voltages are available)
MIL-STD-1553B (Full Bus Controller)
2 Tx & 4 Rx ARINC429 Ports
4 x RS485 or 4 x RS422 (or combinations thereof)
Off = 0V, On = 28V
1 x opto-isolated, 0V to 28V
1 x analogue, 0V to 28V
28V DC (max 32V, min 18V)
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BEZEL: |
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Control Knobs :
Display :
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5 x software programmable rotary knobs with
pushbutton action. (Tactile knobs and audio feedback)
LCD graphics display with backlighting. Direct
sunlight readable
NVG compatible
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OTHER FEATURES: |
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Stored Speech Alarms :
Tone Alarms :
External Time (GPS) Input :
Fill Gun : |
120 sec memory capacity
Multiple alarms can be generated
Time synchronised frequency hopping control for
radios
Software definable on any serial port |
DIMENSIONS: |
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Height :
Width :
Depth :
Mass :
Temperature :
Environmental :
EMI/EMC :
Software :
Power Consumption : |
85.7mm
146mm
170mm
1.9kg
-40ºC to 65ºC (Switch on at 85ºC is possible)
MIL-STD-810E, RTCA/DO160D
MIL-STD-461D, RTCA/DO160D
RTCA/DO-178B level C
25W |
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