Why DWDM Tunable SFP+ Is Better Than Fixed Wavelength SFP+?

 Fixed wavelength SFP+ are still in the market and not too many problems found in use. So you may feel puzzled about choosing DWDM tunable SFP+ or fixed wavelength SFP+ as tunable SFP+ is more expensive. The following will tell you why you need tunable optics.

First, save you cost. With the development of optical communication systems, the shortages of fixed-wavelength laser gradually revealed. Conventional DWDM SFP+ can lead high costs. The number of wavelengths in DWDM 50GHz has reached the hundreds. Then spare modules of each laser should be prepared for protection of the system because you don’t know which module will break down and it’s difficult to predict the number of stock in specific channels. Therefore you have to buy large quantity of DWDM SFP+ modules with fixed wavelengths. While the tunable optics are configured with different DWDM wavelengths in one module. You can select the right wavelength you will need based on your optical fibre communication environment. DWDM Tunable SFP+ are typically used as “spare-optics” to save you cost.

Second, flexible network management. When running a DWDM network with lots of nodes, for instance, up to 80 different wavelengths, management could be a nightmare. You have to prepare couple of Cisco SFP-10G-T-S Optical Transceiver of every wavelength and possibly in different locations. Field engineers may not access network nodes as quickly as you wish. Thus DWDM tunable optics will be a good choice. Tunable optics could be configured for a specific wavelength to support bandwidth changes as needed in the optical network.

Third, suitable for large network capacity. As the development of increasing network transport, 400G or 1T would be the trend. Then 400G and 1T transmission formats are expected to be bulky and not fit within 50GHz spacing. These future new data rate formats require that channel spacing is flexible, that your OTN system can adapt to new rates and will re-arrange channel spacing to find place for new rates in it. DWDM Tunable optics will double the amount of channels supported in this transceiver module. Upgrading to 50GHz channel spacing doubles the capacity potential in Enterprise and Metro networks.Learn:www.oemfibers.com

评论

发表评论

此博客中的热门博文

Differences between cisco GLC-T and cisco GLC-TE

 Cisco GLC-T, GLC-TE and SFP-GE-T optical modules are all Gigabit port optical modules with RJ45 interface and 100m transmission distance. They are cost-saving solutions for Gigabit Ethernet connection in data center, access network and storage area network applications. Therefore, these three types of optical modules are often difficult to distinguish. In fact, the transmission effect of these three optical modules is the same, which optical module can achieve Gigabit transmission, but it is certainly noteworthy that the original Cisco GLC-T and SPF-GE-T optical modules were terminated on June 1, 2017 and replaced by GLC-TE optical module. SFP-GE-T optical module with NEBS 3 ESD function needs to be selected if it is traded directly with the telecommunications company (which requires NEBS).The price of GLC-T and GLC-TE optical modules is low, and they can also meet the needs of Gigabit Ethernet. The Cisco Gigabit optical modules provided by Easy Communications can meet a large number
阅读全文

Cisco 10GBASE SFP+ Modules Data Sheet

 Product overview The Cisco 10GBASE SFP+ modules offer you a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications. Features and benefits Cisco SFP+ modules offer the following features and benefits. Industry’s smallest 10G form factor for greatest density per chassis Hot-swappable input/output device that plugs into an Ethernet SFP+ port of a Cisco switch (no need to power down if installing or replacing) Supports “pay-as-you-populate” model for investment protection and ease of technology migration Digital optical monitoring capability for strong diagnostic capabilities Optical interoperability with 10GBASE XENPAK, 10GBASE X2, and 10GBASE XFP interfaces on the same link Cisco quality Identification (ID) feature enables a Cisco platform to identify whether the module is certified and tested by Cisco Cisco SFP-10G-SR-S module (S-Class) The Cisco 10GBASE-SR module supports a link length of 26 meter
阅读全文

Why the sfp transceiver not work

 The failure of the sfp optical module is divided into the failure of the transmitter and the failure of the receiver. Through the analysis of the main causes of the phenomenon, the most likely problems are mainly concentrated in the following aspects: The optical port of the  1000base SFP transceiver  is contaminated and damaged Because of the pollution and damage of the optical interface of the module, the loss of the optical link is increased, so that the optical fiber link is unreachable. The main reasons for this phenomenon are the following four points: 1. The optical port of the SFP optical module has been exposed to the environment for a long time, resulting in contamination and contamination of the SFP optical port; 2. The end face of the fiber jumper connected to the  Cisco SFP-10g-sr  optical module has been contaminated, and the SFP optical port provides been contaminated; 3. Improper operation of the end face of the optical connector with pigtails, scratching of the finish
阅读全文