parameters		Unit	Specifications
Grade			SM	MM
Operating Wavelength		mm	1310 and 1550	850 and 1310
Operating Temperature		°C	-40~75
Attenuation Range		dB	1~30	1~20
Attenuation Tolerence	≤10dB	dB	±0.5 or±0.75	±1
	>10dB		±5%,±10%, ±15%	±10%,±15%
Reflectance min.	PC	dB	50	30
	UPC		55
	APC		65