CATV 1550nm Externally Modulated Optical Fiber Transmitter

• Type: Optical Transmitter
• Certification: CE
• Condition: New
• Name: Optical Fiber Transmitter
• Feature: Externally Modulated
• Operating Wavelength: 1540~1563nm
• Model NO.: HT8500A
• Work Bandwidth: 47~862MHz
• Cnr: >53dB
• Sbs: 13, 16, 18dBm
• CTB: <-65dB
• Size: 19X14.5X1.75
• Approved: 3rd Party Certification
• Transport Package: 54X64X14cm
• Specification: 1u
• Trademark: AITC
• Origin: China
• HS Code: 8517622100
• Production Capacity: 800PCS/Month

Product Description

HT8500A
CATV 1550nm Externally Modulated Optical Fiber Transmitter
(47~862MHz, CNR1≥ 53dB, SBS: 13, 16, 18dBm adj. )

Product description

1550nm externally modulated optical fiber transmitter is the core equipment in this 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. Adopting EPON or P2P access mode to realize triple-play, FTTx, RFTV broadcasting network in 1550nm optical transmitter wavelength still plays an important role.

Product feature
1. High performance: Externally modulated technology for optical Fiber transmitter, no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristic within 40~862MHz in-band.
2. Narrow bandwidth (Typ. =1MHz), lower noise, DFB continuous wave laser.
3. ITU standard wavelength adjustable, the user can adjust and set the laser wavelength on the front-panel with ± 0.05nm stepping in the range of ± 200GHz (± 1.6nm), used in the network upgrading and expansion of WDM system.
4. AGC/MGC mode is optional at spot.
5. Perfect RS232 communication interface.
6. SNMP network management function optional.
7.1+1 backup power supply optional.
8. Casing temperature auto-control.
9. Excellent P/P ratio.

Main application
1. Used in middle and small CATV center head end
2. Used in second-grade service area of sub-station. Provide second-grade users with high quality and high reliability value added service such as RFTV, IPTV, VOD and so on.

 

Performance			Index		Supplement
Optic feature	Operating wavelength	(nm)		1540~1563		HT8500AC
				ITU-TG.692		HT8500AU
	Wavelength adjustable range	(nm)		±1.6 (±200GHz)		HT8500AU
	Wavelength adjustable mode			±0.05nm stepping		HT8500AU
	Line width	(MHz)		≤1		FWHM(Δλ)
	Side mode suppression ratio	(dB)		≥45		SMSR
	Equivalent noise intensity	(dB/Hz)		≤-160		RIN (20~1000MHz)
	Output power	(dBm)		2×5		Optional 2 ×3, 2 ×6, 2 ×7, 2×9
	Return loss	(dB)		≥60
	optical fiber connector			SC/APC		Optional FC/APC, LC/APC
RF feature	Work bandwidth	(MHz)		47-862		47~1000, 47~1080 optional
	Input level	(dBmV)		18~28		AGC
	Flatness	(dB)		≤±0.75		47~862MHz
				≤±1.5		862~1000MHz (Optional)
	Return loss	(dB)		>16
	Input impedance	(Ω)		75
	RF port			F-Female
Link feature	Transmit channel			PAL-D/60CH	PAL-D/99CH
	CNR1	(dB)		≥53.0	≥51.5	Back to back
	CNR2	(dB)		≥51.5	≥50	50Km optical fiber, 0dBm receive
	CTB	(dB)		≤-65	≤-65
	CSO	(dB)		≤-65	≤-65
	SBS restrain	(dBm)		13,16, 18		Adjustable
General feature	SNMP network management interface			RJ45
	Communication interface			RS232
	Power supply	(VAC)		90~265		50/60Hz
		(VDC)		-48		30~72
	Power Consume	(W)		≤50		Single power works
	Work temp.	(ºC)		0~50		Machine temp. control automatically
	Storage temp.	(ºC)		-40~85
	Operating relative humidity	(%)		5~95
	Size	(")		19×14.5×1.75		(W)x(D)x(H)