HDO776 downstream transmitter supports frequencies up to 1218 MHz and has one 10 dBm output. HDO776 is a directly modulated 1550 nm C-band DWDM transmitter for short, medium and long distances. It supports broadband, narrowcast and broadcast services in digital and analog formats.
Features:
- DOCSIS 3.1 compatible
- Standardised input levell
- Two inputs with level adjustments
- Equaliser in both inputs
- High isolation between inputs
- Automatic power control providing constant total OMI as standard feature
- ITU wavelengths
- Electrical dispersion compensator provides a good CSO performance over longer transmission distances
- Unused input can be switched off for power saving and noise reduction
- Integrated input amplifiers and laser driver amplifiers
- Low power consumption and high performance
- Optional spectrum analyser function
- 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
- 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
- Channel level measurement when equipped with spectrum analyser option
- 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