8 Channel VOA Card Variable Optical Attenuator

Features
• Intelligent and universal, it can directly display the dB value of attenuated optical power.
• Small insertion loss, high attenuation value accuracy, and large variable attenuation range, truly achieving precision, accuracy, stability, reliability, ease of use and durability;
• Good attenuation linearity and repeatability
• Real-time monitoring of input and output power
• High-definition touch display LCD screen, easy to operate

Product Specifications

It is designed with a standard 19-inch 1U rack-mounted and plug-in card structure, and a single chassis provides 4 functional module slots, 2 power supply slots and 1 fan slot; adopts the front panel fiber outlet method, all optical interfaces and network management The interfaces are all designed on the front; the air duct is designed with right air inlet and left air outlet, and an air inlet is designed on the right side of the chassis to absorb cold air into the chassis through the cooling fan unit, and then export it from the air outlet on the left side of the chassis.

Ultra-large Capacity Intelligent Transmission Platform

Standard 1U, 19", 4 slots Dual power supply dual AC/DC optional Multiple service card hybrid insertion Support 10G/100G/200G/400G hybrid transmission	Standard 1U, 19", 8 slots Dual power supply dual AC/DC optional Multiple service card hybrid insertion Support 10G/100G/200G/400G hybrid transmission	Standard 1U, 19", 20 slots Dual power supply dual AC/DC optional Multiple service card hybrid insertion Support 10G/100G/200G/400G hybrid transmission

Why use 8 Channel VOA Card Variable Optical Attenuator?

An 8 - channel VOA (Variable Optical Attenuator) card is used for several reasons, mainly including its ability to manage multiple channels simultaneously, precise power control, wide - range adjustment, and high - speed response. These features make it play a crucial role in ensuring the stable operation and performance optimization of optical communication systems. The specific explanations are as follows:

• Simultaneous multi - channel management: The 8 - channel VOA card can simultaneously adjust the optical power of 8 optical channels. In wavelength - division multiplexing (WDM) systems, where multiple wavelengths of optical signals are transmitted simultaneously in the same fiber, the 8 - channel VOA card can independently control the attenuation of each channel's signal. This ensures that the power of each channel is within an appropriate range, achieving channel - by - channel power balance and improving the overall performance and reliability of the system.

• Precise power control: It has high - precision attenuation adjustment capabilities. The accuracy of some 8 - channel VOA cards can reach ±0.3 dB or even higher. This precise control of optical power is crucial for ensuring the normal operation of optical receiving devices. By accurately adjusting the optical power, it can prevent the optical receiver from being over - loaded due to excessive power, which may lead to distortion, or from having an increased bit - error rate due to insufficient power.

• Wide - range adjustment: The 8 - channel VOA card usually has a wide attenuation range, generally covering from 0 to 30 dB. This wide - range adjustment function enables it to adapt to different application scenarios and optical power environments. For example, in long - distance optical transmission systems, the optical signal will experience different degrees of attenuation. The 8 - channel VOA card can be used to compensate for these losses and ensure that the optical signal can still be normally received and processed at the receiving end.

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