Sital Extends the MultiComBox Tester with EBR 1553 Capabilities

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Sital Extends the MultiComBox Tester with EBR 1553 Capabilities

EBR-1553 is a 10Mbps bit rate protocol which utilized the robust Mil-Std-1553 protocol over RS-485 transceivers in a hub-based point-to-point connection. Using the network topology of a star between Remote and BC Terminals allows robust and high-speed data transfer.
EBR supports various modes of operation – “SPEC” mode, “SWITCH” mode and “LINK” mode.

SPEC mode is similar to the standard 1553 protocol, where the BC sends the message in all ports, all RTs receive the message, and only the RT with the appropriate RT address should respond.

In SWITCH mode the BC sends the message only on the port where the particular RT is connected. For example, if a message is intended for RT 6, then it will be transmitted only on port 6, and the message will contain the RT address 6.

In LINK mode, the message is transmitted only on the appropriate port which corresponds to the required RT address (for example – port 6), but the RT actual address on the message command is ‘0’ for all RTs. This means that any RT that receives a message in this mode, with the RT address ‘0’ should answer to the message. Therefore, RTs are physically connected to the corresponding ports on the BC.

In MultiComBox Sital supports all three modes of operation.

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Sital Technology and Logicircuit to Provide DO-254 Certified IP Cores for Avionic Data Buses

Kfar Saba, Israel, September 7, 2017 — Advanced data bus solutions provider Sital Technology, ltd. announces a new partnership with Logicircuit, Inc. and the resulting availability of DO-254 certified intellectual property (IP) cores for avionic products.

Sital Technology produces high-reliability connectivity FPGA IP cores, I/O cards, components and test system products for aerospace, defense and automotive products. On top of MIL-STD-1553 and ARINC825 protocol implementation, Sital also offers unique cyber security and intermittent wiring fault location detection solutions.

The partnership with Logicircuit focuses on offering MIL-STD-1553 and ARINC825 FPGA IP Cores with corresponding DO-254 certification packages. “Sital’s FGPA IP cores are integrated into many airborne platforms and end customers,” said Ilan Hayat, Vice President of Business Development at Sital, “Partnering with a trusted DO-254 certification provider, such as Logicircuit, expedites our customer’s development and production processes, and demonstrates Sital’s ongoing commitment to better quality products.”

Logicircuit, a provider of avionics design services for the past 18 years, offers DO-254 and DO-178C services and the industry’s largest portfolio of DO-254 compliant IP. Logicircuit creates new compliant cores or re-engineers the commercial IP cores of partners such as Sital, via a thoroughly vetted and approved process. This process results in a certification data package (CDP), which includes all the artifacts and support an aerospace company needs to be able to reuse that IP core in their DO-254 compliant FPGA with maximum efficiency and minimal risk.

“We are happy to finally offer a solution for DO-254 compliant MIL-STD-1553,” said Joe Goode, President of Logicircuit. “We believe the Sital core is the best offering for the industry, and the DO-254 compliant version of this highly requested IP core adds tremendous value to our Safe IPTM catalog.”

The new MIL-STD-1553 and ARINC825 FPGA IP cores are available for licensing on any FPGA design. For technical data sheets, evaluation kits and pricing information please visit

About Sital Technology

Founded in 1996, Sital develops and manufactures advanced data bus solutions. Our mission is to deliver novelty, robustness and commercial superiority for mission-critical data bus communications. Sital’s products are deployed in mass production across airborne platforms, avionic test bench systems and advanced automotive systems. Key customers include NASA, Boeing, Honeywell, Lockheed Martin, Raytheon, BAE Systems, Elbit Systems,General Motors, Ford and Chrysler.

About Logicircuit

Founded in 2000, Logicircuit offers professional services for DO-254/178C compliance as well as a portfolio of DAL A compliant IP cores. Our mission is to to provide our avionics customers with solutions that reduce the cost and/or burden of DO-254 (DO-178C) compliance. Our experienced staff of US-based “DO” professionals work seamlessly with our customers as an extension of their own design teams, to take on as much or as little of the compliance work as desired. Key customers include L-3, Honeywell, Lockheed Martin, Thales, Rockwell Collins, Goodrich, Northrop Grumman, Elbit Systems, PPG, Astronautics, Abaco and more.

Sital Integrates Wiring Fault Detection Capabilities Into it’s BRM1553 MIL-STD-1553 IP Cores

Sital Technology Ltd. announced today that its patented technology for detecting wiring faults will be integrated into its BRM1553D, BRM1553FE and BRM1553PCI Mil-Std-1553 IP cores and boards.

Sital’s Passive TDR (pTDR™) technology is capable of detecting wiring problems such as disconnections, short-circuits, and others, whether they are constant or intermittent. pTDR is a Passive Time Domain Reflectometer (TDR) technology, which constantly measures reflections of energy on an operating Mil-Std-1553, CAN or similar bus. pTDR technology runs during normal system operation without disturbing the standard bus activity.

A standard TDR device sends pulses of energy to the bus and measures the reflected signal. Reflections are created from wiring faults such as disconnections, shorts or lack of proper termination. The time it takes for the signal to travel to the fault and back to the TDR is related to the location of the fault. However, a TDR cannot run while the system is operating, simply because it would be confused by the on-going transmissions on the bus, and also because it may disturb the standard communication.

pTDR does not transmit any pulses to the bus. Instead, it monitors the existing communications and measures reflections created by the normal transmissions. If there are wiring faults then signals will be distorted in certain ways that are related to the location of the fault. The main distortion is related to the width of transmitted bits. For example, in Mil-Std-1553 bits width is 1uS. A distorted bit can last for an additional few nano-seconds, according to the location of the fault. pTDR measures the distortions and reports the additional length of each bit. We call this additional length a “tail”.

The Sital pTDR system constantly reports tails from all Remote Terminals (RTs) on the network. In a correctly performing bus the tails from all RTs will be small and uniform. Changes in the tails indicate a bus fault.

Tail measurements are constantly performed on every message and updated on every frame. Therefore, even a very short disconnection event will be reported.

“The current situation is that each system on the aircraft performs its own built-in-test (BIT) and reports its own problems. But there is no mechanism for performing BIT to the bus wires or reporting wiring problems when they occur.” said Ofer Hofman, Sital’s CTO. “Our technology adds a great level of reliability to the bus, without interfering with the bus activity and without adding any complexity to the system.” He added.

Duli Yariv, Sital’s VP Marketing and Sales said: “Our pTDR™ technology is already implemented on CAN bus and used by automotive manufacturers for detecting wiring faults on vehicles during manufacturing, maintenance and operation. We are excited to enable our avionics and automotive customers to enjoy this technology, add value to their products and make safer aircraft and vehicles.”

pTDR technology for detecting wire faults will be available on the full range of Sital products: testers, IP cores and interface boards.

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Sital Extends it’s BRM1553 IP with Error Injection Testing Capabilities

Until now, BRM1553 IP cores delivered to customers were mainly targeted for in-flight applications. This means that no errors are allowed to be generated from the system.

However, a recent customer application required Mil-Std-1553 testing capabilities from an already-existing flight system, so that the same system can be used as a bus simulator on the ground or as an in-flight operational system.

Multi-RT feature is an essential feature for a Mil-Std-1553 bus simulator. It means that a single 1553 node can be programmed to act as many 1553 Remote Terminals. The user can program the Remote Terminal (RT) addresses which are simulated and thus the unit will answer and create messages, as requested by a Bus Controller (BC) for the simulated RTs.

The Error Injection feature enables the system to simulate several types of errors which may occur on a 1553 network. Therefore, errors like Parity Error, Sync. Error, Zero-Crossing Error and others are all part of an advanced 1553 test and simulation system.

Same Hardware for Interface Card and Test Benches.

Many avionics vendors, who develop avionic systems, are required to provide test benches for their systems. In many cases, developing the test bench is a high cost project, requiring development of boards, software and other simulation tools, usually at low volumes. Therefore the advantages of developing a single hardware that can be used both as a flight system and as a bus simulation tool are obvious. First – there is only need to develop a single hardware, and not require equipment from additional vendors for bus simulation and testing. Second – customers can re-use the software written originally for the actual system also for testing, ensuring lower development cost and enabling faster time to market.

Of-course, the customer needs to make sure that the test software is not loaded into the operational systems. This can be achieved by having a separate FPGA load file for each system and also by enabling or disabling the Multi-RT and Error Injection features by hardware. This means that the IP core can enable or disable the features, by reading hardware configuration bits, which are set differently between the tester and the in-flight system.

Both features can be added to Sital’s standard BRM1553D, BRM1553PCI and BRM1553FE Mil-Std-1553 IP core and are provided with software API, so that users can easily implement these test features into an existing Mil-Std-1553 system.

Sital Announces the Release of the BRD1553 PC104 PC104 Multi Interface Board

Sital Technology announces the launch of its new PC104+ board, an efficient and robust platform for avionics communication bus applications.

BRD1553PC104 Board is a PC-104+ Card, multi-standard board that consists of 2 dual-redundant channels of Mil-Std-1553. It’s compatible with Mil-Std-1760 and Mil-Std-1553B as well as its channels can independently be configured to work with EBR1553, WB-194, and H009  in conjunction with 1553. Other protocols, such as French DigiBus, also are available when requested.

The PC-104+ Board’s based on Sital’s proven H009, 1553 & WB-194 (WMUX) IP cores, loaded into an FPGA (Field Programmable Gate Array) component and discrete components transceivers. The board is able to be programmed by Sital, allowing the flexibility to support a variety of protocols and configurations with the use of the exact same hardware. It includes 8 Generic I/O pins, that could be utilized as RS-485/RS-422, and also includes ARINC-429 (8 for transmit and 16 for receive channels) or 8 avionics I/O ports. Also, the board includes 8 digital I/Os & IRIG-B time-tag input & output channels.

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Sital Announces the Availability of 10 Mbit MIL-STD-1553 IP Cores

Sital Technology announced today that it completed the design of the Enhanced Bit Rate (EBR) 1553 Intellectual Property core for FPGA.

EBR-1553 is a 10Mbps bit rate protocol that utilized the robust Mil-Std-1553 protocol over RS-485 transceivers in a hub-based point-to-point connection. Using a star network topology between BC & Remote Terminals enables robust and high-speed data transfer.

Sital’s EBR-1553 IP core’s based on Sital’s proven BRM1553D 1553 IP cores, with DDC® Enhanced Mini-Ace® compatible interface. The ones available are Remote Terminals, Bus Controller as well as Bus Monitor IP Core configurations. The BRM1553D core can work with any FPGA, and requires only a standard RS-485 transceiver, which supports 10Mbps.

Users of Sital’s EBR-1553 IP core can select the core configuration (BC, RT, MT), clock frequency, memory configuration and FPGA family. The back-end interface can be targeted to a local-bus, PCI bus or simple FIFO/registers read/write bus.

The IP Core is provided with software drivers for Windows, Linux, and QNX along with high-level API. The API is fully compatible with DDC API, so that software developers already used to the DDC interface can easily transfer their existing applications to EBR.

An EBR-1553 tester is also available, utilizing the exact same hardware as the commonly used MultiComBox™, only with updated firmware.

“We are very pleased that we can now deliver high-speed EBR-1553 IP to our customers” said Duli Yariv, Sital’s VP Sales and Marketing. “Customers will enjoy the robustness of the 1553 protocol at a high speed of 10Mbps over the very low-cost RS-485 transceivers, with the ability to easily integrate the core into their FPGA and application” he added.

Ofer Hofman, Sital’s CTO pointed that “unlike other vendors’ solutions, Sital’s is a complete solution that includes all modes of operation – BC, RT and Monitor – along with software drivers and EBR tester hardware”.

The EBR-1553 IP core joins the Sital’s growing family of Mil-Std-1553, Arinc429, CAN, WB-194 and other reliable serial bus communication IP cores and solutions.

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Sital Announces the Availability of the HyperBoard for Rapid Avionic Databus Development

Sital Technology announces the launch of its new PMC Hyperboard, a robust and efficient platform for avionics communication bus applications. Adhering to numerous bus standards including Mil-Std-1553B, H009, WB194 and DigiBus, the PMC Hyperboard puts into the hands of developers a highly-efficient and accelerated platform upon which they can rapidly develop state-of-the-art applications for many types of communication buses.

PMC HyperBoard features eight dual-redundant, configurable channels where each channel can be a bus controller (BC), remote terminal (RT) or MultiRT and/or monitor (MT). The board provides 8X avionics and 8X digital discrete I/Os. It can be used in conduction or air cooling environment. HyperBoard’s core works from its PCI clock and provides very fast PCI access supporting PCI burst. The board boasts very low power consumption and low heat dissipation.

“The PMC HyperBoard provides our customers with two major advantages,” declared Duli Yariv, VP of Marketing. “First, it provides a common and complete environment that is easy to learn for application developers who can then create applications for 1553, DigiBus and other standards using the same board and software. Second, the resulting applications benefit from the robustness, flexibility, speed, low heat dissipation and low power consumption of the board and surrounding software environment.”

Sital markets the PMC HyperBoard with a complete software development and testing environment including drivers and software API for Windows® and Linux. In addition, Sital’s popular Luthier™ graphic user interface for bus simulation and analysis is available.

PMC HyperBoard can be used for on-board avionics systems and for lab testing equipment and is software-compatible with DDC® Enhanced MiniACE® components and architecture.

PMC HyperBoard joins the Sital family of advanced communication bus products-star performers for a wide variety of applications.

Sital Announces the Release of MINUET – the World’s Smallest MIL-STD-1553 Component

Sital Technology, the world leader in Mil-Std-1553 IP cores and products, announces the availability of the world’s smallest Mil-Std-1553 bus controller component– Minuet™.

Minuet™ is a family of compact, standalone, Mil-Std-1553B protocol terminals, which include Bus Controller (BC), Remote Terminal (RT) and Monitor (MT). Depending on the configuration, Minuet™ can be configured as BC/RT+MT or RT+MT. Minuet™ is available in high-density packaging at 8mm square Chip Scale Ball Grid Array (csBGA) or at 17mm square in 1mm pitch ftBGA packaging.

Minuet™ devices are software compatible with DDC® Enhanced MiniACE® components and architecture, with 8K or 16K Words of internal memory.

A Minuet™ device is able to work in conjunction with any standard 1553 transceiver and transformer, or with Sital’s discrete transceiver. When used in conjunction with NHI’s Bus+™, a complete 1553 solution includes an 8mm Minuet™ component and 2 x Bus+™ components, making this the smallest available complete solution for 1553.

Each device can be configured for Local Bus or PCI interface, supporting PCI burst mode for very fast data transfer to and from the device. Operating Clock frequency is flexible, with a wide range of frequencies selectable by writing to a register within the device. This Eliminates long bus cycles and multiple clock domains on board, simplifying timing requirements and reducing EMI and RFI problems.

Minuet™ is available in several configurations:

  • BC/RT/MT or RT/MT with local bus interface.
  • BC/RT/MT or RT/MT with PCI interface.
  • 8K (csBGA, 8 x 8 mm package) or 16K (ftBGA, 17 x 17 mm package) Words of internal memory

“We are delighted to release this device now” said Ofer Hofman, Sital’s founder and CTO, “with Minuet™ we are able to provide the smallest and the lowest cost solution for 1553, which is compatible with DDC® legacy interface” he added.

Duli Yariv, Sital’s VP of Sales and Marketing said: “Our customers can now choose between a wide variety of components and IP core implementations to meet their performance and cost criteria. Minuet™ is the bridge between the proven legacy software developed in the past and the form-factor and flexibility that is required for the future.”

More information can be found at Sital Technology website –

PCI-to-MIL-STD-1553 IP Core

The newly released PCI IP core was developed in order to overcome problems related to existing BRM1553D,BRM1553FE and BRM1553PCI IP cores, specifically in the aerospace industry, where high reliability, wide temperature range and easy integration are key.

Ofer Hofman, CTO of Sital said: “While working on a project with a PCI core from one of the FPGA vendors, we discovered that the core we used doesn’t work in high temperature, even though the temperature was within the range of the component. We concluded that this is due to timing problems created by the core.

Another FPGA vendor provided us with a core that was very hard to integrate. We therefore used our extensive now-how and developed our own core, which is now successfully used in several projects”.

The core can be used for any FPGA and is provided in VHDL source code.

Sital Announces the Release of the 2nd Generation Avionics Bus Tester – the MultiComBox

Sital Technology, the world leader in Mil-Std-1553 IP cores and products, is expanding its product base with the release of the 2nd generation of its Mil-Std-1553 bus tester – MultiComBox™.

The MultiComBox™ unit provides two dual-redundant MIL-STD-1553 channels, as well as four (4) serial channels and a synchronization channel for synchronizing other test equipment with 1553 protocol data. MultiComBox™ enables full MIL-STD-1553B testing, simulation and bus analysis capability in a very compact and self-contained unit. The unit connects through a USB 2.0 interface to any host system and supports a concurrent Bus Controller (BC) and up to thirty-one Remote Terminals (RT) with Bus Monitor (MT). Full error injection capability’s available in RT & BC modes, with full error detection in MT, RT, and BC modes. The tester can handle real-time data, creating a unique option for a complete Mil-Std-1553 real bus simulation system.

Special care was taken with the unit’s power consumption in order to enable operation from the low-power USB port of any standard PC, including laptop computers, without any external power source.

MultiComBox™ is supplied with improved Windows GUI – MuxMonitor™ and MuxSim™ – which are user-friendly and intuitive software tools for traffic generation, monitoring and analysis of Mil-Std-1553 bus. Working in conjunction with the unit, MuxMonitor™ can monitor messages, frames and errors and analyze the status of each unit and frame on the bus. It’s providing filters and triggers for displaying and monitoring of recorded data. Also, recorded frames can be exported as CSV, XML and other file formats for future use or for interacting with other programs. MuxSim™ can manage and simulate all traffic on the bus. It can handle a large number of Mil-Std-1553 frames, which can be inserted by the user, recorded from the bus or imported from XML files. To facilitate the test, MuxSim™ is able to simulate 1553 RTs, thus allowing the user to test the full ICD (Interconnect Control Document) without needing to connect every LRU physically. The user easily can pick which units are to be simulated and which units are real.

“The new MultiComBox™ is a great step forward for Sital” said Duli Yariv, Sital’s vice president for marketing. “our proven 1535 IP cores technology enables us to create low-cost yet high-value products, and this tester is just the first of many solutions which we are about to release to the market” he added. Sital’s founder and chief engineer, Ofer Hofman, said: “utilizing IP cores, FPGA technology and our flexible analog transceiver design enables us to reduce the size, cost and power consumption of the unit. It also provides the flexibility which is required for supporting more features and bus protocols like H009, PP-194 and others.”

For more information regarding the MultiComBox, please visit us at:

MultiComBox™ – The Mil-Std-1553 tester – is available via Sital regional distributors or for direct ordering.
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