DVOA Dynamic Variable Optical Attenuator
Product Overview
DVOA is a card developed by Visint for the unstable optical power of optical communication lines. It plays the role of automatic optical gain adjustment and protection of the optical receiver, and is connected in series in the communication fiber link to ensure that the communication has no blocking operation. The panel provides setting buttons for easy installation and debugging. The panel LED indicator shows the current system operating status at a glance. The system is designed to work stably in harsh environments according to industrial grades. It is widely used in the intelligent adjustment of optical circuits such as PDH, SDH systems, Ethernet systems, and wavelength division multiplexing systems.
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DVOA is a card developed by Visint® for the unstable optical power of optical communication lines. It plays the role of automatic optical gain adjustment and protection of the optical receiver, and is connected in series in the communication fiber link to ensure that the communication has no blocking operation. The panel provides setting buttons for easy installation and debugging. The panel LED indicator shows the current system operating status at a glance. The system is designed to work stably in harsh environments according to industrial grades. It is widely used in the intelligent adjustment of optical circuits such as PDH, SDH systems, Ethernet systems, and wavelength division multiplexing systems.
Supporting hot swapping, easy maintenance.
Supporting intelligent and manual adjustment methods.
Excellent heat dissipation design and temperature adaptability, can work in various harsh environmental conditions.
AC/DC dual backup redundant power supply, wide voltage range adaptation, support hot swapping, and easy maintenance.AC/DC
Supporting SNMP-based unified network management platform, network management mode CLI, WEB, NetRiver (graphical interface).
System Parameter | Technical Index | |
Wavelength range | 1260nm~1650nm. | |
Attenuation range | 0dB~30dB. | |
Insertion loss | Not including connector loss≤0.7dB (0.5dB typical). | |
Wavelength dependent loss | Test in 0dB: ≤0.3dB, Test in 20dB: ≤1.5dB. | |
Temperature dependent loss | Test in 0dB: ≤0.2dB, Test in 20dB: ≤1.0dB. | |
Polarization dependent loss | Test in 0dB: ≤0.1dB, Test in 20dB: ≤0.3dB. | |
Response time | ≤2ms (1ms typical). | |
PMD | ≤0.1ps. | |
Return loss | ≥55dB. | |
Network management mode | CLI, NetRiver, WEB. | |
Product dimension | 177 (W)*20(H)*225(D)(mm). | |
Environmental requirements | Working temperature | -10℃ ~ 70℃. |
Storage temperature | -40℃ ~ 80℃. | |
Relative humidity | 5% ~ 95% no condensation. | |
Safety and EMC | Compliance with FCC, UL, CE, TUV, CSA standards. | |
Power consumption | <5W. | |
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