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-47 device for cryptographic protection of voice information

E-47B device is designed for voice information ciphering when operating over simplex and duplex communication channels with S1-TCHR, S1-TCH and S1-FL-BI interface parameters and also over SW (short waves) aviation channels and satellite digital channels. E-47B device is designed for off-line operation within fixed communication center and provides also communication with E-47A and E-47E. The device is controlled from remote-control board.

2. BASIC TECHNICAL CHARACTERISTICS
  • Kind of transmitted information - voice information (digital)
  • Information transmission rate - 1200, 2400, 4800, 9600 and 16000 bit/s
  • Interfaces - S1-TCHR, S1-TCH, S1-FL-BI
  • Communication modes - simplex, duplex, transit, duplex-simplex communication channel interface
  • Interface modes to radio station - PPRCH, FRCH
  • Encryptor synchronization - automatic when switching on or in case of communication disturbance
  • The number of keys - 8
  • Key information entry - using portable electronic reading device
  • Key carrier - electronic device like 1634 D6
  • Check - built-in check using loops at line side and user side
  • Power supply : 18 to 32 V DC power line
  • Power consumption - up to 25 W
Operation parameters:
  • Continuous operation - twenty-four-hour
  • Operating time to failure - at least 10 000 hours
  • Lifetime - 20 years
Ambient conditions:
  • Operating temperatures - minus 60C to +60C

Construction parameters:

  • Device overall dimensions with absorbing frame - 210x110x300 mm,
  • Weight - up to 5 kg
  • Overall dimension of remote-control board - 180x120x130 mm,
  • weight - up to 2, 5 kg