CMA - Data Acquisition for New Space

Introduction

The best Commercial Off The Shelf (COTS) data acquisition and telemetry solution for Low Earth Orbit space launch vehicles, missile testing, or other application where highly ruggedized and EMI hardened acquisition is required.

Sharing many features with the XMA upon which it is based, the CMA from SAFRAN Data Systems has enhanced EMI immunity and higher EMC. With its compact and ruggedized design, the CMA is the ideal fit for remote data acquisition in those harsh and tight spaces found in missiles and space launch vehicles. The CMA has the smallest effective size per sensor ratio available and offers highly versatile acquisition modules to easily tailor the instrumentation for each specific application. Acquisition modules perform highly accurate measurement, signal conditioning, serial interface, and bus monitoring. Modules also offer recording, GPS reception, tailored interfaces and a built-in transmitter allows for an all-in-one-box implementation. The on-board processing module can provide pre-processing of data and even fully-programmable command and control interfaces to an external system.

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

Space Launch Instrumentation Product Menu : CMA Data Acquisition - SE-320 Camera - S-Band Transmitters

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

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