Optical Variable Attenuator (Digital) EVA50
Rugged and compact design, EVA50 is designed to help
Most compact and rugged portable attenuator on the market
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
Model | EVA50-40 | EVA50-60 | EVA50-80 |
Attenuating Range | 40 dB (SM) | 60 dB (SM) | 80 dB (SM) |
Calibrated Wavelengths | 1310nm / 1490nm / 1550nm | ||
Fiber Mode | SM | ||
Attenuating Mode | Digital | ||
Display Resolving Power | 0.1dB | ||
Display | LCD, 128*64 | ||
Max Input Power | + 21 dBm | ||
Return Loss* | > 40 dB | ||
Insertion Loss* | < 2.5 dB | ||
Connector | FC/PC (or customize) | ||
Uncertainty | ± 0.5 dB | ||
Repeatability* | ± 0.2 dB | ||
RS-232 | Optional | ||
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 |
* at 20±3℃, CW, with FC/PC connector,1550nm
Size(H*W*D) | 190mm * 90mm * 40mm | |
Weight | About 450g | |
Storage Temperature | -20 -- +60°C, < 90%RH | |
Operating Temperature | -10 -- +50°C, < 90%RH |
EVA50-XX
Model
EVA50-40 = 40dB
EVA50-60 = 60dB
EVA50-80 = 80dB