OVA-A Variable Optical Attenuator (2-60dB Attenuation Range)  | |
| OVA-A Variable Optical Attenuator | OVA-A Variable Optical Attenuator Port |
Description:
VOA-A Handheld Optical Variable Attenuator is used for continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing, therefore, VOA-A can be used in the digital system of communication devices (such as: PHD, SDH) and also in the system of adopting analog modulation (CATV).
Features:
1. Stepwise attenuating by circumgyrated dial: attenuating step 0.05dB
2. Provide with the function of displaying dB and dBm attenuating value
3. 10 minutes Auto-off function can be activate and deactivate with keypad operation.
4. After off the instruments, the system will have the memorizing of the attenuating value and the attenuating step, in order to restore the system back to the previous shut down state when open the instruments next time.
5. Portable, rugged, lightweight; Easy to use.
Application:
1. Telecom Maintenance
2. CATV Maintenance
3. Comprehensive cable construction system
4. Optical instruments research and development
5. Optical communication education and lab testing
Specification:
Model | OVA-A |
Attenuation Range | 2~60dB |
Resolution | 0.05B |
Fiber Type | SMF 9/125um; MMF 62.5/125 optional |
Attenuation Wavelength Range | 1260~1650um |
Calibrated Wavelength | 1310/1490/1550/1625nm; 850/1300nm optional |
Linearity | ±0.5dB |
Repeatability | ±0.2dB |
Accuracy | ±0.8dB |
Insertion Loss | <2dB |
Return Loss | >35dB (typical: 40dB) |
Max Input Power | +20dBm |
Display | Lattice 128*64 black and white, white background light |
Rechargeable Batteries | 8.4V |
Power Supply Adapter | 8.4V |
Operating Time | 40 hours |
Connector | FC/PC |
Operating Temperature | 0°C to +40°C |
Storage Temperature | -10°C to +60℃ |
Relative Humidity | 0%~85% (non-condensing) |
Dimension | 180mm*90mm*36.5mm |
Net Weight | 427g |
Standard Accessories: |
Protective Rubber Boot, Rechargeable battery, Power Supply Adaptor, Instruction Manual and Cotton Swabs and Rigid hard carrying case |
