Modern fiber optic networks send multiple data signals through a complex system of cables, connectors, and circuits. Multiplexers and demultiplexers (demuxers, for short) work in pairs to increase network capacity and performance. Learn more about what a demuxer is and how they work.
Why Do You Need a Demuxer and What Is Demuxing?
A demuxer is an important part of fiber optic networks. It receives multiplexed signals and converts them into individual signals so they can then go to end users. This makes fiber optic networks more efficient and preserves data integrity.
Demuxing is the process of separating combined optical signals. It is part of a complex process that increases the efficiency of transmission, reduces power consumption, and can help manage operating costs.
A multiplexer codes the signals by wavelength at the signal origin and combines them into a single signal for sending. Once the signal reaches the receiving end, a demuxer separates the wavelengths before sending each one out over individual lines to the end users.Â
How does a Demux Work?
A demux connects to network components using single-mode fiber patch cables. Depending on the equipment, you may need duplex or simplex cabling. A compatible transceiver is required for operation.Â
As the signals come into the demuxer, it identifies unique wavelengths. It then sends these signals through switches and assigns them to an output based on address codes. Common configurations are for 1:4, 1:8, and 1:16 demuxers. These have one signal input and four, eight, or 16 signal outputs.
It’s common to have questions about how a demux works. After all, most people don’t think much about what goes on inside their fiber network as long as it performs as expected. However, you should at least have a basic understanding so you can identify issues if they arise.
What Are the Benefits of Using a Demultiplexer
Demuxers are part of a larger system that allows networks to carry multiple signals simultaneously. When designed properly, these systems offer many advantages, including:
- Cost savings: It is generally more cost-effective to use a multiplexer and demultiplexer than to install individual processing units, especially in larger networks.Â
- Increased capability: Demuxers allow you to increase data transmission capacity and improve network performance without significantly altering your current network infrastructure.Â
- Less space: The equipment needed for demuxing is much smaller than the cabling necessary to carry extra transmissions.Â
As with any technology, there are potential drawbacks, too. For example, a demuxer may result in increased latency and some signal degradation. They are also fairly complex and require specialized technical knowledge to configure to your network.
Additionally, sub-standard components may fail, leading to network downtime and the need for repairs. For that reason, it is critical to use only high-quality components chosen specifically for your network and installed by experienced professionals.
Learn More About What a Demuxer Is and How One Can Improve Your Network
Equal Optics is a leading provider of network solutions. We offer transceivers, cabling, switches, memory, and muxes/demuxes to optimize network performance. Contact us to learn more about what a demuxer is and whether one can help boost your fiber network capacity.
