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HFC

OPTICAL AMPLIFIER OPTICAL NODE OPTICAL PLATFORM OPTICAL RECEIVER OPTICAL TRANSMITTER OPTICAL SWITCH RF AMPLIFIER RF SWITCH

TFT1550 Cable TV system1550nm Modulated Optical Transmitter

Advanced RF signal predistortion circuit design，ensure that the equipment can still have excellent CTB and CSO indicators when the CNR value is ...

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TFT1550 Cable TV system1550nm Modulated Optical Transmitter

Overview    Adopts standard 19 inch rack,TFT1550 is mainly used for indoor front-end program transmission and image / voice signal transmission of any Hybrid fiber coax (HFC) system. Features         ● Advanced RF signal predistortion circuit design，ensure that the equipment can still have excellent CTB and CSO indicators when the CNR value is high；
        ● 45～862MHz or 45～1GHz downlink bandwidth；
        ● Superior SBS suppression design,provides longer transmission distance
        ● Pioneering adjustable SBS function ，provides more flexible configuration；
        ● AGC design，stabilize output performance in different RF input level ranges，simplify installation and operation program；
        ● The built-in microprocessor provides excellent control performance and status display function.
        ● SBS modulated type is 13 to 19dBm（0.5dB step），whether the network architecture is combined with optical amplifiers for 100 km long-distance transmission or 65 km medium distance ring network, it can be adjusted by users according to the application status, so as to reduce unnecessary expenses and reduce the risk of network architecture. Technical Specifications

Performance		Index	Note
Optical Parameter	Laser wavelength(nm)	1550±10
	Laser type	DFB
	Optical modulation mode	External modulation
	Output power(DBm)	2×9	Optional 1×5、1×6、1×7、1×9 2×5、2×6、2×8、2×10
	Optical reflection loss(DB)	≥60
	Optical connector	FC／APC	Optional SC／APC
RF Parameter	Working bandwidth(MHz)	47～1000
	Input level（DBμV）	83±5	AGC
	Flatness(DB)	≤±0.75	47~1000MHz
	Reflection loss(DB)	＞16	47~1000MHz
	Input impedance(Ω)	75
Link Parameter	CNR(DB)	≥51
	CTB(DB)	≥70
	CSO(DB)	≥70
	Modulation error rate (MER)	≥40dB
	SBS Inhibition （DBm）	≥16	13、16、18 Optional
General Performance	Network management interface	RJ45，R232
	Power supply AC (V)	90～264ty	Optional-48VDC
	Power dissipation（W）	≤50
	Operating temperature (℃)	-20～85	Fully automatic chassis temperature control
	Humidity	20%～85%
	Size（mm）	483×381×44	LxWxH

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