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Teleste - HDO774 NADAJNIK

HDO774 downstream transmitter supports frequencies up to 1218 MHz and has one 5 dBm output. HDO774 is a 1550 nm DWDM transmitter for long distances. It supports broadband, narrowcast and broadcast services in digital and analog formats.


  • DOCSIS 3.1 compatible
  • User settable ITU channels
  • External modulation enables different link spans with one transmitter (more than one receiver)
  • External modulation doesn’t require dispersion compensation
  • Standardised input and test point levels
  • Low power consumption and high performance
  • Two inputs with level adjustments
  • Equaliser in both inputs
  • High isolation between inputs
  • Unused input can be switched off for power saving and noise reduction
  • Integrated input amplifiers and laser driver amplifiers
  • Automatic power control providing constant total OMI as standard feature
  • Optional integrated xWDM filter to combine forward and return paths into one fibre or to combine various forward wavelengths into one fibre
  • Fibre connectors can be located at the rear or at the front panel
  • Small form factor family, 2 RU height
  • Local and remote software control of all adjustments
  • Forced cooling through the unit

Management features:

  • Setting of ITU channel (wavelength)
  • Monitoring of APC (Automatic Power Control) functionality with user configurable offset
  • Signal level adjustment in both inputs
  • Slope adjustment in both inputs
  • Input 2 switch on/off
  • LED indicators for signal and module statuses
  • Internal temperature measurement and monitoring
  • Intelligent fan speed control with monitoring
  • Non-volatile logging of 32 latest events, including alarms, alarming values, settings changes and application starts.
  • Uptime and total uptime counters
  • All adjustments and alarm limits fully user configurable
  • Local PC connection through backplane HDO bus with HDX021 cable
  • Remote IP connection through HDC100 controller module
  • SNMP monitoring and configuration through HDC100 controller module
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