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DIGITAL RECORDER

The Digital Recorder has varying sustained record & Play back Aggregate data Rates, storage capacity & Interface Board (IFBs). The Digital recorder Provides high quality real-time dynamic signal monitoring function in record or idle mode. The Digital Recorder is required to record analog demodulated baseband signals, AGC signals and data/clock signals from Receivers with bit-synchronizer and with IRIG-B time during mission.

These signals are recorded in real time on Solid State Media in digital form and replayed back later for analysis.

Applications

  • Realtime data acquisition, recording and playback
  • Telemetry data acquisition and storage
  • Can record analog, digital and PCM streams from telemetry receive chain.
  • Can be used as a generic data acquisition and logging system with optional replay
Functional
No of Channels Record & Reproduce
  • 5-Analog Channels
    • • 2-Baseband signals up to 1MHz
    • • 2-AGC signals up to 40KHz
    • • 1-IRIG-B AC Code up to 1KHz
  • 04 - Digital channels
    • • 2 PCM Channels
    • • 1 data and 1 clock signal per channel]: bit rate up to 1 Mbps
Signal Level
  • - Single ended analog:8V pk-pk
  • - Single ended TTl:0-5V
Signal rate High speed Analog channels: 1X2.5 -> 2.5 MHz
PCM Channel Digital PCM channel: 10MHz
Clock Source Internal
Clock Format Data + Clock mode Synchronous to rising or falling edge of data
Mode Record, Replay
Coupling AC/DC Coupling for High-speed Analog signals
Impedance 50Ω/1M Ω Selectable 100pF for High-speed Analog signals
Resolution ≥ 8 bits
Sampling Rate Minimum 2.5 times of BW for analog channels
Drive type and capacity
  • - Two removable Solid state disks (1TB each) connected in RAID 1, capacity 1TB. Disk Interface: SATA
  • - One SSD 1 TB for OS & Application GUI S/W Storage. Disk Interface: SATA
  • - External USB Hard Disk 1TB for External data transfer for backup
Outputs
  • - Analog: 5No’s
    • • Resolution: ≥8bits
    • • Signal Level: More than ±5V peak to peak, DC Coupled
    • • Impedance: 0.1 ohm
  • - Digital:4 No’s
    • • Output Signal: Data+ Clock
    • • Clock rate: Identical to input Clock rate
    • • Clock format: Identical to input Clock format
    • • Signal level: Single ended TTL for all data, Clock
  • - 01-Time Channel (Modulated IRIG-B coded)
Networking Connectivity Ethernet 100/1000 Mbps, Ethernet network connectivity for easy file access
Interfaces SATA, USB for Storage
Electrical
Operating Voltage range 230V±15V AC, 1 Phase, 50 Hz
Rated current 1.5 Amp Max
Mechanical
Recorder System W 482 mm X H 177 mm X D 530 mm
Rack Mount Keyboard W 482 mm X H 44 mm X D 300 mm
Weight (Kg) < 25Kg
Environmental
Temperature
• Operating -20oC to +55oC
• Storage -25oC to +65oC
Environmental compliance JSS-55555 / MIL 810D
EMI/EMC compliance MIL-STD-461E

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