Overlay 1550nm Direct Modulated Optical Transmitter (VOD1504)

Product Description

VOD1504
VOD Overlay 1550nm Drect Modulated Optical Transmitter

Product description
AITC VOD1504 is a high performance 1550nm direct modulated inter-cut (narrow-bandwidth multiplex) optic transmitter which design and manufacture specially for realizing two-way television interact operation (VOD) for CATV network, mainly used in second service area to inter-cut IP/QAM or local program.

Product features
1. ITU standard wavelength, ± 1.6nm adjustable
2. Build-in WDM, the panel with main signal optical input port and join-wave output port, offer simple connection
3. The difference of main signal input optical power and inter-cut optical power can be set by panel and SNMP
4. Identify and track the main signal optical power automatically, adjust the inter-cut output optical power automatically via VOD, to keep the difference in the range set by customer
5. High performance optical modulation degree auto-control, can keep the modulation degree consistent, in line with inter-cut channels
6. Independent manual operation modulate level control circuit (MGC), make the system convenient to debug
7. High linearity 1550nm DFB laser
8. High performance predistortion correction, excellent APC, ATC, AWC control
9. Low (No) optical input, inter-cut optical shut automatically
10. High performance SNMP network management function, support remote management and control
11.1+1 power backup, support hot plug
12. Industrial excellent cost performance

Main application
1. VOD flow rate loading inter-cut optical transmitter
2. Edge IP/QAM optical transmitter
3. Full optical 1550nm, video data inter-cut operation

Application cases
1. VOD overlay FTTH PON ( single fiber three wavelength)
2. VOD overlay FTTB PON ( single fiber three wavelength)
3. VOD overlay FTTH RFoG( CMTS ) ( single fiber two, four wavelength )
4. VOD overlay FTTB RFoG( CMTS ) ( single fiber two, four wavelength )
5. The desigh and debug of system
6. ITU Grid Channel Table

Performance			Index			Supplement
Performance			Min	Typ.	Max	Supplement
Optic feature ( Main signal )	Main signal work wavelength	(nm)	1548.40		1563.86	CR ( Red-Band )
	Main signal work wavelength	(nm)	1528.77		1563.86	XX ( ITU wavelength code )
	Pass loss	(dB)	1.0	1.0	1.5	DW, CW, BW
	Pass loss	(dB)	1.5	2.0	2.5	MW
	Input optical power range	(dBm)	0		+7
	Optical power ratio setting range	(dB)	0		+8	The main, vice opitcal power ratio
	Inter-out optical operating wavelength	(dB)	-5		+5	Laser OFF when main signal low than this value
Optic feature ( Inter-out opitcal )	Inter-cut optical operating wavelengthh	(nm)	1528.77		1563.86	XX ( ITU wavelength code )
	Inter-cut optical operating wavelengthh	(nm)	1528.77		1543.3	CB ( Bule-Band )
	Wavelength adjustable range		-1.6		+1.6	± 200GHz
	wavelength adjustable mode		± 0.05nm stepping
	Wavelength stability	(Pm/ º C )	-1		0	Tc=20~70º C
	Line width	(MHz)			5
	Side suppression ratio	(dB)	45
	Equivalent noise intensity	(dB/Hz)			-160
	Output optical power	(dBm)	6		10
	VOA insertion loss	(dB)			1.0
	VOA adjustable range	(dB)	-20		0
	VOA adjustable accuracy	(dB)	-0.1		+0.1
	VOA polarization relative loss	(dB)			0.3
RF feature	Operating bandwidth	(MHz)	47		1000
	Input level	(dBmV)	75		85
	Flatness	(dB)	-0.75		+0.75
	AGC syability	(dB)	-0.4		+0.4
	MGC adjustable range	(dB)	-7.0		+7.0
	MGC adjustable step	(dB)		0.1
	Reflection loss	(dB)	16
	Input impedance	(Ω )		75
	RF connector		F - Female
Analog link	Test channel	CH		8		PAL-D
	Modulation degree	(%)		3.812
	CNR	(dB)	54
	CTB	(dB)	58
	CSO	(dB)	58
Digital link	Test channel	(CH)		32		QAM
	Modulation degree	(%)		12
	MER	(dB)	36
General feature	SNMP connector		RJ45
	General feature		RS232
	Power supply	(VAC)	90		265	50/60Hz
	Power supply	(VDC)		-48		70~72VDC
	Power consume	(W)			20	Single power works
	Operationg temp.	(º C)	-5		+65	Machine temp. control automatically
	Storage temp.	(º C)	-40		+85
	Operating relative humidity	(%)	5		59
	Size (W)× (D)× (H)		483× 386× 44 (mm) 19× 15.2× 1.75 (" )