C Band ST Transmitter


HDO773 features:

  • ITU wavelengths
  • Electrical dispersion compensator provides a good CSO performance over longer transmission distances
  • Standardised input and test point levels
  • 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
  • Optional spectrum analyser function
  • 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


  • Monitoring of APC (Automatic Power Control) functionality with user configurable offset
  • Optical output power monitoring
  • Laser bias current monitoring
  • TEC (Thermo-Electric Cooler) current monitoring
  • Laser temperature monitoring
  • Signal level adjustment in both inputs
  • Slope adjustment in both inputs
  • Input 2 switch on/off
  • Link length setting
  • 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