Optical Solution Sharing

As the ever-increasing of small business, Ethernet switches with PoE (power over Ethernet) technology to realize real-time monitoring and management. 8-port PoE switch is one of the commonly used PoE switches in business networks. Considering different factors, it’s common for users to find a matched cheap PoE network switch to replace the expensive one. In this post, the alternative—FS S1130-8T2F 8-port PoE managed switch—for D-Link DGS-1100-10MP 8-port PoE switch and why it can replace DGS-1100-10MP switch will be talked about in details. Overview of DGS-1100-10MP and FS S1130-8T2F 8-Port PoE Switch D-Link DGS-1100-10MP 8-Port PoE Switch D-Link DGS-1100-10MP smart managed PoE switch offers 8 10/100/1000 ports and 2 gigabit SFP ports, providing an affordable solution for business of all sizes. It’s mainly deployed for Video IP surveillance applications. Different from other 8-port PoE switches like Cisco and HP, D-Link DGS-1100-10MP is much cheaper for users. FS S1130-8T2F ...

When network designers build their networks, there is a common problem that they may meet: whether to stack switches or not. Because, limited by the switch port counts, designers have to get more switches or stack switches to meet network build requirements. In the article, the stack of 48-port PoE switch will be used as examples to explore how to achieve optimized network performance through switch stacking, and when network designers need to stack their network switches. How to Decide Whether Switch Stacking Is Need? Switch stacking is to connect two or a group of network switches to form a single stack unit that can be managed in a simple way. In this way, available switch ports are increasing as well as management simplicity. For example, in an small business network (PoE is necessary), if 48 gigabit ports are needed, two 24-port gigabit PoE switches can be stacked to achieve the target. Of course, one 48 port PoE gigabit switch also can be used. However, whether to choose...

As the total expenditure decreases of 10GbE network and the increasing data traffic in modern business, the specific demands for 10GbE switches have been put forward. As we know, there are 8-port 10GbE switch, 12-port 10GbE switch, 24-port 10GbE switch and 48-port 10GbE switch in the market. With so many types to choose from, many users have troubles in making a decision. In this tutorial, several kinds of 12-port 10GbE switch will be introduced, aiming to offer a reference for users’ selection of 12-port 10GbE switches. 10GbE Netework Switch Overview of Popular 12-Port 10GbE Switches in Market As we can search on many forums and communities, Cisco 10GbE switches are the hottest topic. However, not every user, especially some SMB (small and mid-sized business) network builders will hesitate to choose Cisco switches due to its high price. Considering this point, here are some 10GbE switches that much cheaper. D-link DXS-1210-12SC D-link DXS-1210-12SC is a 12-port 10Gb...

Each power supply has a separate power cord to support its work. Server power cord connecting the servers and PDU (power distribution unit) plays a critical role in this process. Since the power cords standard for connector types and voltage levels varies from country to country. It’s important to choose the most suitable one for network systems. This post intends to give a simple introduction to server power cords and their applications in different systems. Power Cords Overview Usually standard power cords or jumper power cords are available for connection to the server. Power cord consists of three necessary parts: plug, cord and receptacle. And there are many different types of power cords used all over the word. The most commonly seen types are the IEC60320 power cord and NEMA power cord. The former one is often used in US. While the latter is usually seen in North America and other countries that use the standards set by the NEMA. Among these two types of power cords, ...

DWDM MUX/DEMUX plays a critical in WDM network building. 16 channels transmission is very common in DWDM networks. How to realize it in a simple way? This article intends to introduce two solutions to achieve 16 channels with different types of components. Which one is more cost-effective and competitive? The comparison between the them also will be explored. Hope it will help you when choosing fiber mux for your DWDM networks. Solutions to Achieve 16 Channels Transmission in DWDM Network In order to illustrate the solution more clearly, I take two types of DWDM MUX/DEMUX as an example. One is the traditional 16 channels dual fiber DWDM MUX/DEMUX. Another is two FMU 8 channels dual fiber DWDM MUX/DEMUX. The latter has an expansion port. Solution One: Using Traditional 16 Channels DWDM MUX/DEMUX The 16 channel DWDM MUX/DEMUX is a passive optical multiplexer designed for metro access applications. It’s built fiber mux and demux in one unit and can multiplex 16 channels on...

CATV technology has matured steadily over the past several years, and has expanded into diverse applications. However, as the quick expansion in technology and services, it’s important to improve CATV network component performance for higher visual and audio signals transmission. Optical amplifier for CATV application is the key element in such transmission. This post intends to give a clear introduction of optical CATV amplifier and its application in CATV transmission. Introduction to CATV Amplifier CATV amplifier is also a type of EDFA (Erbium Doped Fiber Amplifier) amplifier which is the most popular optical amplifier in optical network communications. It is mainly used to amplify damped TV signals (compensation for loss) for improved signal quality before sending them to each subscriber. Moreover, CATV amplifiers not only amplify the signal, but also amplify the noise on the line, and bring some return loss. That’s why a quality CATV amplifier price is a little high, becaus...

Wavelength division multiplexing (WDM) is a commonly used technology in optical communications. It combines multiple wavelengths to transmit signals on a single fiber. To realize this process, CWDM and DWDM mux/demux are the essential part. As we all know, there are several different ports on the WDM mux and demux. This article will give a clear explanation to these ports and their applications in WDM network. Overview of Different Ports on WDM MUX/DEMUX Line Port Line port, sometimes also called as common port, is the one of the must-have ports on CWDM and DWDM Mux/Demux. The outside fibers are connected to the Mux/Demux unit through this port, and they are often marked as Tx and Rx. All the WDM channels are multiplexed and demultiplexed over this port. Channel Port Like the line port, channel ports are another must-have ports. They transmit and receive signals on specific WDM wavelengths. CWDM Mux/Demux supports up to 18 channels from 1270nm to 1610nm with a channel sp...