Optical Variable Attenuator

Among those famous optical variable attenuator manufacturers and suppliers in China, Green Telecom Tech Co.,Ltd can offer you customized ova, fiber variable attenuator, optical digital attenuator made in China. Our factory is waiting for your contact.   Description The GVA50 optical variable attenuator is designed for optimal flexibility and field usability,the GVA50 delivers the highest performance within handheld optical attenuator on the market, it is an ideal tool for telecom technicians to do the pre-test before the maintenance. Features ● Compact and rugged portable design ● Three wavelengths: 1310nm / 1490nm / 1550nm ● Different attenuator range, 40dB, 60dB or 80dB ● Can save current value as reference ● Can save 10 tracks attenuation value ● Memorize the value after instruments shut down ● Energy save mode ● One-year warranty and three-year recommended calibration interval Specification

Optical Variable Attenuator - GVA-50 Parameter
Model	GVA50-40	GVA50-60	GVA50-80
Attenuating Range	40dB(SM)	60dB(SM)	80dB(SM)
Calibrated Wavelengths	1310nm / 1490nm / 1550nm
Fiber Mode	9/125um	
Attenuating Mode	Digital
Display Resolving Power	0.1 dB
Display	LCD, 128*64
Max Input Power	+ 28 dBm
Return Loss*	>40 dB
Insertion Loss*	< 2.5 dB
Optical Connector	FC/PC (or customize other connectors)
Uncertainty	+/- 0.5 dB
Repeatability*	+/- 0.2 dB
Auto Power Off	No operation in 10 minutes (can be canceled), Low battery energy
Battery Charge	Yes
Operate Time	Above 20 hours
Power Supply	3 * AA batteries or AC/DC adapter
Size(HxWxD)	190mm *90mm * 40mm
Weight	About 450g
Storage Temperature	-20  to  +70  ℃ ,<90% RH
Operating Temperature	-10  to  +50  ℃ ,<90% RH

* at 20±3℃, CW, with FC/PC connector,1550nm Standard Package ①GVA-50 main body*1 ②Nylon bag and the Q/C certificate*1 ③Operation Manual*1 ④Paper Box Ordering Information GVA50-XX (1)GVA50-40: Attenuation Range:40dB (2)GVA50-60: Attenuation Range:60dB (3)GVA50-80: Attenuation Range:80dB