In networking climate, several users from multiple locations try to get access to a secure network connection. All these connections are possible due to the use of fibre optic cable.
However, the physical space is limited, which has escalated use of compact devices like SFP fibre module.
The SFP modules are connected through the fibre optic cables for communication with a various transmitter and receiver types. It is typically designed to support multiple communication standards such as SONET, Gigabit Ethernet, and Fibre Channel. Irrespective of the distance, the SFP modules ensure to provide a seamless network connection.
What is an SFP Fibre Module?
SFP Fibre Module is a small factor pluggable module that fits into an SFP port, socket, media converter or ethernet, and has 256 byte EEPROM memory module. To transfer and receive data, it facilitates a smooth connection of ethernet signals into optical signals. It can quickly adapt to different network devices such as a switch, router or fibre media converter to a fibre optic or copper connecting cable.
It is designed to transmit networking signals across a great distance. There is a requirement for greater transmission capacity, so dense wavelength division multiplexing (DWDM) technology is more reliable. It enables combining multiple data signals on different wavelengths and transmit them over a single optic fibre network.
We’ll be discussing both the tunable and standard DWDM SFP+ modules that are popular in the best online marketplace for sellers, and compare which is more dependable.
Tunable DWDM Vs Standard DWDM SFP+ Modules
The standard DWDM supported a fixed wavelength lasers as a light source. This indicates that other optical transceivers are required for different wavelength channels in the DWDM system.
However, the recent tunable DWDM are enhanced version than the standard DWDM. Its tunable laser can operate under any channel wavelength with a single transceiver.
The tunable DWDM SFP is more expensive than the standard DWDM SPF, and there are ample reasons to justify it.
- Cost Savings
Initially, the tunable DWDM will cost you more than the standard DWDM in the short-run. But with the development of optical communication, the shortcomings of the conventional DWDM is revealed.
It only uses a fixed number of wavelength lasers for the light source. So additionally, it will require to purchase more spare modules to receive and transmit signals.
The tunable laser facilitates to operate the DWDM SFP at any given channel wavelength. As it is configured with various DWDM wavelengths, it can efficiently function in a single module. Depending on your optical fibre communication environment, you can adjust the right wavelength you need.
In the fixed wavelength, one need to buy a massive quantity of DWDM SFP+ modules. The spare modules for each laser have to be safeguarded, as you don’t know which module will breakdown. So, it involves an investment which is not required in the tunable DWDM.
DWDM tunable SFP+ are undoubtedly the best choice when it comes to saving money in the long run.
- Flexible Network Management
If you operate a DWDM module with lots of nodes for different wavelength, for instance, up to 90 different wavelengths, management and positioning them can be a big headache. It needs to prepare a couple of DWDM SFP+ optics of each wavelength. Possibly the locations of the wavelengths will be different.
Moreover, access to all these nodes will be difficult for field engineers at the time of repair. It will end up creating a huge mess.
A tunable DWDM SFP+ module is a preferred alternative. It can be readily configured to a specific wavelength to support the bandwidth changes. So clearly, this optical network facilitates more flexible network management compared to the traditional DWDM SFP+ module.
- Large Network Capacity
400 G or 1Twill soon be trending in the market landscape with the evolution of increasing transport network. The transmission formats of 400G or 1T are expected to be bulkier and will not accommodate within the 50GHz spacing.
These future new data formats demand flexible channel spacing. This enables the OTN system to adapt to further modifications and re-arrange channel spacing to discover a place for new rates in it.
With the tunable DWDM SFP+, the channel supported in the transceiver module will double its number. By upgrading to the 50GHz channel spacing, the Metro and Enterprise network’s capacity potential will automatically double.
With better access to high-speed data, especially in large environments, SFP modules have become essential. Most importantly, the tunable DWDM SFP+ module is desired for its enhanced performance. It effortlessly tunes the wavelength in a fraction of second.
Among the DWDM SFP, the tunable system is popular due to its ease of use and flexibility. In the long run, it is safe to predict that tunable DWDM modules will rule the market.