Catcast Technology Co., Ltd. (Chengdu)  

Product Name: Rftv Network System FTTH Gpon Solution CATV 1550nm External Modulation Fiber Optical Transmitter Model NO.: HPT8500H Condition: New Certification: CE, ISO, RoHS, GS, SGS, FCC Work Bandwidth: 47~862MHz, Optional 47~1000MHz Input Level: 18~28dbmv, AGC Return Loss: >16dB RF Port: F-Female Snmp Network Management Interface: RJ45 Trademark: Catcast Transport Package: in Carton Origin: Chengdu, China Product Description RFTV Network System FTTH GPON Solution CATV 1550nm External Modulation Fiber Optical TransmitterProduct descriptionHPT8500H Series1550nm externally modulated optical transmitter is the core equipment in the RFTV network system.RFTV is a unidirectional analogue and digital video broadcast. It adopts high efficiency modulation mode for RF carrier wave and its economy, flexibility and bandwidth validity is beyond comparison of IPTV. By adopting EPON, GEPON or P2P access mode to realize triple-play and FTTx, RFTV broadcasting network in 1550nm optical wavelength still plays an important role.1550nm externally modulated technology for optical transmitter has no laser chirp, low dispersion distortion, and large extinction ratio, with excellent characteristic within 47~862MHz. External Modulator doesn't generate CSO distortion after reasonable bias. It can be followed by amplifier when used in large area coverage of over-long trunk and local networks. Adopting WDM, multi-wavelength optical channels can be transmitted through one fiber. 1550nm optical fiber CATV follows the current development trend of triple-play and fiber to home.HPT8500H that accords with current international industry technique standard is a 1550nm Externally Modulated Optical Transmitter. The whole unit light source adopts narrow bandwidth (0.65MHz), low noise, continuous wave DFB laser, which is propitious to reduce the influence of dispersion. The whole unit signal modulation adopts CATV special LiNbO3 external modulator of American company and optimized control technology with independent intellectual property , so it can reach high index of back to back CNR ≥ 54dB, CTB ≤ -65dB, CSO ≤ -65dB, SBS:13,16,18dBm adjustable. The whole unit is equipped with perfect RS232 communication interface, SNMP network management, 1+1 back-up power supply, hot-plug function available, chassis temperature auto-control.HPT8500H, Standard typeexternally modulated optical transmitter with it's high index, high reliability and excellent cost performance, is applicable for main links and distribution network links in large and middle CATV station head-end. HPT8525HC: 2 fiber output, each port ≥4.5dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.HPT8527HC: 2 fiber output, each port ≥7.0dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.HPT8529HC: 2 fiber output, each port ≥8.5dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.HPT852AHC: 2 fiber output, each port ≥10dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.HPT852BHC: 2 fiber output, each port ≥11dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.HPT852CHC: 2 fiber output, each port ≥12dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.HPT852DHC: 2 fiber output, each port ≥13dBm, CNR ≥ 53.0dB, SBS: 13, 16, 18dBm adjustable.HPT8500HU: ITU standard wavelength adjustable. User can adjust and set the laserwavelength within ±200GHz(±1.6nm)at ±0.05nm space by LCD menu or buttons on the front panel. Apply to WDM network upgrade and expansion.Product featureHigh performance: Externally modulated technology, no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristic within 47~862MHz.Narrow bandwidth (0.65MHz), lower noise, DFB continuous wave laser, is propitious to reduce the influence of the dispersion.The operating bandwidth is up to 47~1000MHz.CNR ≥ 53dB and excellent CTB, CSO index.SBS: 13, 16, 18dBm adjustable.ITU standard wavelength, ±200GHz (±1.6nm) adjustable.AGC/MGC mode is optional at spot. OMI can be optimized at spot.Perfect RS232 communication interface.Advanced SNMP network management function.1+1 power supply backup, switch automatically.Casing temperature auto-control.Excellent P/P ratio.Main applicationUsed in main links and distribution network links in large and middle CATV station head-end.Analog digital hybrid transmission >200Km (with dispersion compensation).Pure digital transmission (without dispersion compensation) >400Km, (with dispersion compensation) >700Km.HPT8500HU ITU wavelength adjustable, applicable to the value-added service of DWDM fiber optic CATV system and CFG dispersion compensation system.It can be used in branch FTTH that has high system index demand. Point to Point>65Km, CSO ≤ -65dB. It can provide high qualified and reliable value-added service such as RFTV, IPTV and VOD for the secondary users. It can also avoid the limitation of CSO deterioration and transmission distance caused by laser chirp for adopting 1550nm direct modulated optical transmitter.TECHNIQUE INDEXPerformanceIndexSupplementOptic featureOperating wavelength(nm)1548~1563HPT8500HCITU-TG.692HPT8500HUWavelength ADJ. range(nm)±1.6(±200GHz)HPT8500HCWavelength ADJ. mode±0.05nm steppingHPT8500HUWavelength stability(Pm/ºC)-1~0Tc=20~70ºCLinewidth(MHz)Typ.=0.65FWHM(△λ), (-3dB fullwidth)Side mode suppression ratio(dB)≥45SMSREquivalent noise intensity≤-160RIN(20~1000MHz)Number of output port2Output power(dBm)13, 12, 11, 10, 8.5, 7.0, 4.52×5, 2×7, 2×9, 2×10, 2×11, 2×12, 2×13Return loss(dB)≥50Optical connectorSC/APCOptional FC/APC, LC/APCRF feature Work bandwidth(MHz)47~862Optional 47~1000MHzInput level(dBmV)18~28AGCFlatness(dB)≤±0.7547~862MHz≤±1.5862~1000MHz(Optional)Return loss(dB)>16Input impedance(Ω)75RF portF-Femalelink featureTransmit channelPAL-D/60CHPAL-D/99CHCNR1(dB)≥53.0≥51.5Back to BackCNR2(dB)≥51.5≥49.565Km optical fiber, 0dBm receiveCTB(dB)≤-65≤-65CSO(dB)≤-65≤-65SBS restrain(dBm)13, 16, 18AdjustableGeneral featureSNMP network management interfaceRJ45Communicationinterface RS232Power supply(VAC)90~26550/60Hz(VDC)-4830~72VDCPower consume(W)50Single power works Work temp.(ºC)-5~65Machine temp. control automatically Storage temp.(ºC)-40~85Relative humidity(%)5~95size(")19×14.5×1.75S-Type19×17.9×1.75L-TypeProduct seriesModel Number of output poreOutput power of each port (dBm)Work wavelength (nm)SBS Restrain (dBm)System index(59 routes PAL-D)CNR1CNR2CTBCSOHPT8525HC2≥4.51548~156313, 16, 18dBm Adjustable≥53≥51.0≥-65≥-65HPT8527HC2≥7.0≥53≥51.5≥-65≥-65HPT 8529HC2≥8.5≥53≥51.5≥-65≥-65HPT 852AHC2≥10≥53≥51.5≥-65≥-65HPT 852BHC2≥11≥53≥51.5≥-65≥-65HPT 852CHC2≥12≥53≥51.5≥-65≥-65HPT852DHC2≥13≥53≥51.5≥-65≥-65HPT8525HU2≥4.51528~1563nmITU wavelength adjustable≥53≥51.0≥-65≥-65HPT 8527HU2≥7.0≥53≥51.5≥-65≥-65HPT 8529HU2≥8.5≥53≥51.5≥-65≥-65HPT852AHU2≥10≥53≥51.5≥-65≥-65HPT852BHU2≥11≥53≥51.5≥-65≥-65HPT852CHU2≥12≥53≥51.5≥-65≥-65HPT852DHU2≥13≥53≥51.5≥-65≥-65Test condition: CNR1: Tx to Rx, 0dBm receiving.CNR2: 16dBm EDFA (NF4.5~5.5dB), 65km fiber, 0dBm receiving.