1553 Commercial
Military Grade Performance...
Commercially Smart Choice!
"Airbus Chooses DDC's MIL-STD-1553
Components for A350 XWB Flight Control!"

Military Flight Control Solutions for Cost-Effective Commercial Avionics

MIL-STD-1553... The Smart Choice

Why DDC?

• Robust, Reliable, Fault Tolerant & Deterministic • World Leader in MIL-STD-1553
• More than 30 Years of Proven Performance • Over 200 Million Hours in Flight
• Superior EMI Performance • Certifiable to RTCA/DO-254

1553... Moving Commercial Avionics Forward!

In the persistent drive for greater performance and reliability while reducing development and operating costs, today's commercial aircraft designers must continue to challenge old paradigms.

Just as the construction of the airframe evolved from wood, to aluminum, to polymer composites in order to reduce weight and increase fuel efficiency, the design of flight control systems has evolved to offer an equally meaningful impact in delivering a more commercially desirable aircraft. Progressing from mechanical, to hydro-mechanical, to “fly by wire” avionics, the latest generation of commercial aircraft offer pilots greater safety and control capabilities, while reducing development costs for manufactures and operating costs for airlines.

Although there are now several “fly by wire” data bus alternatives to choose from, none offer the flight history, EMI performance, durability, reliability, ease-of-installation, determinism, distributed control, and value that MIL-STD-1553 provides.

For more than 30 years MIL-STD-1553 has reliably met the performance challenges of the most demanding military aircraft in the most extreme conditions. Now, the 1553 standard and it's higher performance variants enable commercial aircraft designers to fulfill the markets need for ever increasing performance and reliability while reducing development and operating costs.

1553 Data Bus Solutions for Commercial Avionics

MIL-STD-1553

MIL-STD-1553 has been in use in flight and mission critical systems within military aircraft for over 30 years. The continued use of MIL-STD-1553 on new platforms such as F-22 and F-35 is a testament to the reliability of this interface. The current trend in commercial... MIL-STD-1553 has been in use in flight and mission critical systems within military aircraft for over 30 years. The continued use of MIL-STD-1553 on new platforms such as F-22 and F-35 is a testament to the reliability of this interface. The current trend in commercial aircraft towards distributed processing architectures in real-time critical systems has created a need for a reliable, deterministic digital data bus. It is only natural that MIL-STD-1553 be considered as a leading candidate for these new commercial aircraft systems.

> PRESS RELEASE: Learn Why Airbus Chose DDC's MIL-STD-1553
March 2010 - Airbus Chooses DDC’s MIL-STD-1553 Components for A350 XWB Flight Control!

> WHITE PAPER: MIL-STD-1553 Goes Commercial
This paper explores some of the major attributes of MIL-STD-1553 and discusses why MIL-STD-1553 is an ideal choice for use in commercial aircraft systems.
> WHITE PAPER: MIL-STD-1553 Goes Commercial
This paper explores some of the major attributes of MIL-STD-1553 and discusses why MIL-STD-1553 is an ideal choice for use in commercial aircraft systems.

> WHITE PAPER: Distributed and Reconfigurable Architecture for Flight Control System
This white paper discusses some evolutions for Flight Control System (FCS) and how to build alternative FCS using low-cost and safe architectures with less hardware and...
> WHITE PAPER: Distributed and Reconfigurable Architecture for Flight Control System
This white paper discusses some evolutions for Flight Control System (FCS) and how to build alternative FCS using low-cost and safe architectures with less hardware and software resources. The paper presents a full distributed reconfigurable architecture for FCS based on smart actuators and digital communication network where all system functions are distributed to simplex Flight Control Computer (FCC) nodes and remote actuator electronics nodes (FCRM) with communication between FCC and FCRM based on a MIL-STD-1553 bus.

Using a TTP Protocol? Achieve Greater Speed, Bus/Stub Lengths, and Lightning Protection!

TTP 1553 - SAE AS6003

Time Triggered Protocol (TTP) is an emerging data bus protocol that is finding its way into commercial aerospace applications. TTP is being released as an SAE Aerospace Standard (AS6003). RS-485 was initially the de facto physical layer for TTP however the... Time Triggered Protocol (TTP) is an emerging data bus protocol that is finding its way into commercial aerospace applications. TTP is being released as an SAE Aerospace Standard (AS6003). RS-485 was initially the de facto physical layer for TTP however the performance of RS-485 has been found to be unacceptable for use in avionics applications. The proposed physical layer for AS6003 is MIL-STD-1553, as specified in AS6003 slash 1. DDC has developed a prototype 1553 physical layer interface that operates at 4 Mbps with commercially available TTP controller chips. This prototype physical layer card was used to refine the specifications for AS6003 slash 1.

> PRESS RELEASE: TTP Over MIL-STD-1553
October 2010 - DDC Demonstrates TTP Running over MIL-STD-1553 Physical Layer!

> WHITE PAPER: MIL-STD-1553 Physical Layer for Time-Triggered Networks
Time Triggered networking technologies such as TTP (Time Triggered Protocol) are beginning to be used in critical aerospace applications such as flight controls. While TTP...
> WHITE PAPER: MIL-STD-1553 Physical Layer for Time-Triggered Networks
Time Triggered networking technologies such as TTP (Time Triggered Protocol) are beginning to be used in critical aerospace applications such as flight controls. While TTP provides stringent specifications for determinism and fault tolerance, it does not define a physical layer. TTP’s “de facto” physical layer, RS-485, includes shortcomings in a number of areas. MIL-STD-1553, which has been deployed in flight and mission critical military applications for decades, defines a highly proven and robust physical layer. This section presents MIL-STD-1553’s physical layer as a candidate for use with TTP, including test results.

Need to Exceed 1Mb/s? Turbo-1553 Operates at 5Mb/s!

TURBO-1553

DDC has conducted research aimed at accelerating the speed of MIL-STD-1553 beyond its current 1 Mbps rate. The results of these tests showed that the data rate of MIL-STD-1553 can be reliably increased to 5 Mbps. DDC has developed prototype hardware that... DDC has conducted research aimed at accelerating the speed of MIL-STD-1553 beyond its current 1 Mbps rate. The results of these tests showed that the data rate of MIL-STD-1553 can be reliably increased to 5 Mbps. DDC has developed prototype hardware that demonstrates the performance of a 5 Mbps “Turbo-1553” interface. Turbo-1553 provides an ideal solution for applications that demand the reliable deterministic performance of MIL-STD-1553 but need a slightly higher data rate. Turbo-1553 retains all the architectural benefits of MIL-STD-1553 while operating at a higher data rate.

> WHITE PAPER: MIL-STD-1553 Evolves with the Times
MIL-STD-1553 combines a robust physical layer with a deterministic protocol making it ideally suited for use in commercial aerospace systems. While MIL-STD-1553’s 1...
> WHITE PAPER: MIL-STD-1553 Evolves with the Times
MIL-STD-1553 combines a robust physical layer with a deterministic protocol making it ideally suited for use in commercial aerospace systems. While MIL-STD-1553’s 1 megabit-per-second data rate is still adequate for a large number of applications, there are systems that require higher rates. This white paper discusses two approaches for increasing the bandwidth of MIL-STD-1553 that are gaining momentum.

Need Even More Speed? HyPer-1553 Operates at up to 200Mb/s!

HYPER-1553

DDC has developed technology called HyPer-1553 that implements high speed digital data communication over legacy MIL-STD-1553 buses utilizing a broadband waveform such that this new high speed communication does not interfere with the legacy 1 Mbps... DDC has developed technology called HyPer-1553 that implements high speed digital data communication over legacy MIL-STD-1553 buses utilizing a broadband waveform such that this new high speed communication does not interfere with the legacy 1 Mbps 1553 communication while operating on the same bus. HyPer-1553 supports data rates from 50 to 100 Mbps for concurrent operation depending on bus length and number of nodes. Testing has also shown that data rates of 100 Mbps or higher are feasible on buses where legacy 1 Mbps MIL-STD-1553 communication is not present. HyPer-1553 can be used to implement a high speed multi-drop bus for use in commercial aircraft.

> PRESS RELEASE: HyPer MIL-STD-1553
January 2006 - DDC Demonstrates New High Performance 1553 Technology

> WHITE PAPER: High Performance 1553
This white paper provides a summary of DDC’s initial study into the feasibility of running higher speed over legacy MIL-STD-1553 data buses. The results of DDC’s analysis is...
> WHITE PAPER: High Performance 1553
This white paper provides a summary of DDC’s initial study into the feasibility of running higher speed over legacy MIL-STD-1553 data buses. The results of DDC’s analysis is that for some MIL-STD-1553 buses there is sufficient bandwidth to implement a broadband system in which legacy 1 Mbps 1553B waveforms could coexist with new 100 Mbps waveforms, thus providing for an increment high speed communication channel to existing MIL-STD-1553 buses.



> Download all White Papers