Technical Specification

📡 General System

• Type: Voyage Data Recorder (VDR) / Simplified VDR (S-VDR version available)
• Compliance: IMO SOLAS requirements (MSC.333(90), IEC 61996-1)
• System structure:
  • Data Collecting Unit (DCU)
  • Fixed Data Recording Unit (DRU)
  • Float-free DRU
  • Remote Alarm Panel

💾 Recording Performance

📊 Recording duration

• Up to 720 hours (30 days) of voyage data storage

🧠 Data storage units

• Fixed DRU capacity: 32 GB
• Float-free DRU capacity: 64 GB

🔁 Recording method

• Continuous loop recording (old data overwritten after storage limit)

📡 Data Inputs (What it records)

🧭 Navigation data

• GPS position
• Heading (gyro / compass)
• Speed (water + ground)
• COG / SOG
• ROT (Rate of Turn)

📻 Audio & communication

• Bridge microphones
• VHF radio communication

📊 Sensor data

• Radar display images
• ECDIS screen data
• AIS data
• Alarms and system events

🔗 Interface & Connectivity

• Ethernet (IEC 61162 / IEC 61162-450)
• Serial communication (IEC 61162-1/2)
• Video LAN converter for radar/ECDIS display capture
• NMEA data integration

Typical input channels:

• ~13 sensor channels (expandable depending on configuration)

⚡ Electrical

• Power supply: 100–230 V AC
• Frequency: 50/60 Hz
• Power consumption: depends on system configuration (~low commercial load)

🌡️ Environmental

Operating conditions

• DCU: approx. -15°C to +55°C
• DRU: -25°C to +55°C
• Humidity: up to 95% RH

Protection rating

• DCU: IP20
• Fixed DRU: IP56
• Float-free DRU: IP67

🛡️ Safety & Design

• IMO/SOLAS compliant
• Two DRU system (fixed + float-free)
• Designed to withstand:
  • Fire
  • Shock
  • Deep-sea pressure
• Used as official investigation record after marine incidents