XMA - Airborne Data Acquisition Unit

Introduction

45 years of experience in flight test instrumentation and telemetry solutions have enabled Safran Data Systems to design and build technology that performs reliably in the most challenging environments and meet evolving needs in the industry. Their equipment is the first choice with customers worldwide.

With its compact and ruggedized design, the XMA series from Safran Data Systems is the ideal fit for remote data acquisition in those harsh and tight spaces found in aircraft. It is the perfect candidate for network telemetry applications and remote acquisitions, reducing the length of intrusive wires by acquiring data closer to the sensors. The XMA also allows data recording, data processing, GPS localization and data transmission. It has the smallest size/channel types ratio, and provides optimized module sets for a large number of data type acquisitions, all with state-of-the-art accuracy. Full status and health information of the unit is remotely available for live monitoring

Multiple XMA units can be networked, and their output recorded using a flight test data recorder such as the MDR, or broadcast using an airborne telemetry transmitter to a ground station.  The XMA OBP provides onboard processing that can be used to reduce the size of data budget, whilst the eZ Software used to configure, process, and decommutate.

Configuration:

Comprising of either one of two core unit which consists of a power supply and PCU, acquisition modules are added to suit the requirements of the test. See diagram below.

2" x 3" form factor

XMA Core8 - Small to medium data acquisition unit

• 1 Central Processing Unit
• 1 Power Supply
• 1 cover plate to enclose the module stack
• Up to 8 modules

XMA Core16 - Medium to large data acquisition unit

• 1 Central Processing Unit
• 2 Power Supplies
• Up to 16 modules

Digital Acquisition Modules

XMA AFX - AFDX ARINC664-7 Acquisition Module

• AFDX frame acquisition with parsing features
• Two single or one dual redundant 10/100BASE-TX input ports for AFDX acquisition
• Error detection (MAC, AFDX, IP, UDP layers)
• Filtering based on Virtual Links (VLs), AFDX Ports
• Up to 256 VLs per input port
• Up to 1024 AFDX Ports per input port
• Airbus flavour of AFDX. Other format on request

XMA ARC - 16 ARINC 429 Channels

• ARINC-429 frame acquisition with parsing features
• 16 differential ARINC-429 input channels
• Up to ±30V differential input range
• Differential input impedance > 30kΩ
• High/Low bus speed independently configurable per input channel or automatic bus speed detection
• 1024 programmable filters per input channel
• Internal time stamping with a 1μs resolution
• Lightning protection (DO-160G)

XMA CAN - 4 CAN Channels

• Four Controller Area Network (CAN) acquisition channels
• Bus Frame Identifier: CAN 2.0A, CAN 2.0B (11 or 29 bits)
• Maximum bus bitrate: 1Mbps / channel (Bitrate selectable on each channel)
• Differential input impedance > 30kΩ
• High/Low bus speed independently configurable per input channel or automatic bus speed detection
• Message counters / Error counters available
• 1μs Rx Frame time-stamp resolution
• Lightning protection (DO-160G)

XMA DAB - 16 Discrete Monopolar Inputs

• Synchronous Event Sampling
• Asynchronous Event Detection
• Frequency, Counter, (asynchronous or synchronous) Period Measurement, Duty Cycle Measurement
• 16 monopolar inputs
• Up to 50V analogue input range
• 2 independent programmable thresholds per input (hysteresis skill, 16-bits DAC)
• Differential input impedance > 200 kΩ

XMA IPX - 2 Ethernet Acquisition Channels

• Network telemetry traffic spying
• Data acquisition from sensors with Ethernet UDP output
• Data acquisition from TCP communications between two hosts
• Two independent 10Base-T / 100 Base-TX 802.3 Ethernet input ports
• Two independent acquisition, filtering and extraction flows
• Simultaneous protocol handling per input port
• Support of Unicast / Multicast / Broadcast addressing at Network layers (IPV4)

XMA MIL - 4 MIL-STD-1553 Channels

• 4 independent (or 2 redundant) MIL-STD-1553B bus monitoring with native 1553 electrical level or 2 independent (or 1 redundant) MIL-STD-1553B bus monitoring with RS422 electrical level.
• Short (direct coupling) or long (transformer coupling) stub.
• Parsing on all 1553 message types.
• Message time stamping on parity bit of the first word of the message (with 1μs resolution).
• Lightning protection (DO-160G).

XMA MRC - 4 MIL-STD1553 / RS-X / CAN Channels

• One single module for three types of digital bus acquisitions (exclusive per firmware)
• Up to 4 x MIL-STD-1553 acquisitions
• Up to 4 x RS422/485 acquisitions
• Up to 4 independent CAN buses (native CAN or RS-CAN)

XMA RSD - 4 x RS 232/ 422 / 485, 16 Differential or Unipolar Discrete Channels

• Synchronous Event Sampling
• Asynchronous Event Detection
• Frequency, Counter, (asynchronous or synchronous) Period Measurement, Duty Cycle Measurement
• Pulse Totalizer Counter Measurement (non-volatile and resettable): PTC
• Additional Frequency to Digital Converter Measurement: FDC2
• Point to point or network RS422/485 frames acquisition with filtering features

XMA RSX - 4 x RS-232/422/485 Channels

• Up to 4 RS422/485 asynchronous channels
• Up to 2 RS422/485 synchronous channels (Data + Clock)
• Up to 4 RS232 asynchronous channels
• Up to 2 RS422 PCM synchronous channels (Data+Clock), up to 20Mbps
• NRZ (L,M,S), RNRZ-L (scrambled NRZ-L), Bi-L,M,S
• Customization of RS processing available on demand

Flight Test Instrumentation Product Menu : μMA - XMA - XMA Rotor - MDR - MDR-GT - XMA-MDR Combo - HyperLink - eZ Software

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For more details and to request a demonstration contact Photo-Sonics International.

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