Product Details
Externally modulated optical transmitter with SNMP management, indoor, 1550nm, 2 output port, ≥7mW output optical power, 47~862MHz, SBS, 13/16/18dBm or adjustable, imperial F type female port, FC/APC or SC/APC connector, RJ45 and RS232 port, VFD, 19" 1U.
Features: Download DOC:1550nm direct modulation optical transmitter
◇ Narrow bandwidth (Typ.=1MHz), lower noise, DFB continuous wave laser
◇ The operating bandwidth is up to 47~1080MHz
◇ Perfect index: Unique innovation technology, provide excellent CNR, CTB, CSO & SBS
◇ Perfect RS232 communication interface
◇ SNMP network management function optional
◇ 1+1 backup power supply optional
◇ Casing temperature auto-control
◇ Excellent P/P ratio
◇ AGC/MGC mode is optional at spot. OMI can be optimized at spot
Description
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 and 1550nm externally modulated optical transmitter is the core equipment in this system.
1550nm externally modulated technology has no laser chirp, low dispersion distortion, and large extinction ratio, with excellent characteristic within 40~862MHz. 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.
Parameter
Item Specification
Optical feature
Optical wavelength 1548~1563nm
1530~1563nm CATV wavelength
ITU standard
Wavelength ADJ. range ±1.6nm(±200GHz)
Wavelength ADJ. mode ±0.5nm stepping
Linewidth =0.651MHz FWHM(△λ)
Side mode suppression ratio 45dB SMSR
Extinction ratio 20dB XP
Equivalent noise intensity -160dB/Hz RIN (20~1000MHz)
Output power 2x7 2x5, 2x9 options
Return loss 50dB
Optical fiber connector FC/APC or SC/APC
RF feature
Work bandwidth 47~862MHz
47~1000MHz
47~1080MHz
Input level 18~28dBmV AGC
Fatness ±0.75dB
≤±1.5dB
862~1000MHz
Rerun loss >16dB 47~1000MHz
Input impedance 75ohm
RF port F female
Link feature
Transmit channel PAL-D/60CH PAL-D/99CH
CNR1 53dB 51.5dB Back to back
CNR2 ≥51.5dB ≥49.5dB 65km optical fiber
0dBm receive
CTB -65dB ≤-65dB
CSO -65dB ≤-65dB
SBS restrain 13~18dBm Adjustable
General feature
Network management interface RJ45, RS232 Support IE &SNMP
Power supply 90~265V/50/60Hz -48V optional
Power consume ≤50W Single power works
Work temperature ℃ Machine temperature
Control automatically
Storage temperature -40~85℃
Relative humidity 5~95%
Dimension 19inch,1U
Applications
◇ HFC network
◇ PON network
More please visit our website: 3w(dot)youfibercable(dot)com
or email to: jeff(at)