Huatai HA4600/IF series, is narrow-band multiplexing EDFA suitable for L-Band fiber link application. With build-in 1550nm Internal Modulation SAT-IF optical transmitter, used for inter-cutting DBS. The WDM inside will multiply the signal from TX and main line signal that is inputted from outside, then the combined signal will enter EDFA to be amplified to serve the local subscribers. To avoid the interferes caused by mismatching of the optical output power between TX and main line signal from outside, output power of the TX can go through a VOA, thus, it can be adjusted or set from the front panel. This unit is simple and clear, easy to be installed and tested. It offers a high quality and cost-effective solution for inter-cutting DBS into full optic relay 1550nm fiber CATV system and second-stage service area.
Operating wavelength range covers whole C-Band (1528~1564nm)
Adopts LA, low-input, ensures input power of the main line≥0dBm, gain excellent system CNR
Three options for EDFA gain.
SCH single channel
F10 gain flatness, ≤±0.5dB
F20 gain flatness ≤±1.0dB
SAT-IF TX adopts high linearity, cooling DFB laser, pre-distortion.
SAT-IF TX can choose ITU standard wavelength, wavelength adjustable.
Output power of SAT-IF TX can go through a VOA, thus, it can be adjusted or set from the front panel. To avoid the interferes caused by mismatching of the optical output power between TX and main line signal from outside
Laser APC, ACC, ATC control
Standard RS232 communication interface, complete SNMP function.
Excellent P/P ratio.
CATV Value-added service.
Second-stage service area (sub-station, sub-HE), inter cut DBS business.
Note: Optional multi-port optical output
Note: Cause it is not easy to adjust the output power of DMTX, this model is not recommended to use this function.
Network application diagram