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DWDM-OADM Module - Features
?Low insertion loss ?Low PDL ?High channel isolation ?Excellent environmental reliability
DWDM-OADM Module - Applications
?WDM system ?CATV ?MAN (Metropolitan Area Network)
CWDM can realize the multiplexing and demultiplexing between two communication channel .It can expand the capacity of single fiber to achieve bidirectional communication, which can widely used in optical network upgrade and expansion, or introduce new comprehensive business etc.
DWDM-OADM Module - Specifications

Parameters		Unit	SUN-OADM-D
Wavelength Range			ITU channels 186.6to196.1THz
Channel Center Wavelength		nm	ITU Grid
Channel Spacing		Ghz	100			200
Channel;Passband;(@-0.5dB)		nm	0.22			0.5
Channel No.		λ	1		2	4		8
Insertion Loss	Add/Drop	dB	≤0.8		≤1.2	≤1.7		≤3.0
	Express		≤0.8		≤1.6	≤2.5		≤4.0
Adjacent Channel Isolation		dB	≥ 30
Non-adjacent Channel Isolation		dB	≥ 45
Wavelength thermal stability		nm/℃	≤ 0.003
Insertion loss thermal stability		dB/℃	≤ 0.005				≤ 0.007		≤ 0.008
PDL		dB	≤ 0.1	≤0.15			≤ 0.20		≤ 0.25
Polarization mode dispersion		ps	≤ 0.1				≤ 0.15
Directivity		dB	≥ 50
Return loss		dB	≥ 45
Optical Power		mW	≤ 500
Operating Temperature		℃	-10 ~ +70
Storage Temperature		℃	-40 ~ +85
Relative Humidity		%	5 ~ 95
Dimension		mm	ABS Box or LGX Box or 1U(2U) Rackmount