Hub Networking has emerged as emerged important way of connectivity

Network devices or network equipment are different types of electronic devices used in networking. Network devices in a computer network, between computers, fax machines, printers, etc network devices are primarily used to transmit and receive the data securely and quickly. Intra network or internetwork- is the two types of network devices. Some devices are installed on the device like RJ45 connector, NIC card, while other devices are built-in parts of the network such as a switch, router, etc. These types of particular devices are able to handle electrical or digital connections to perform their exclusive roles in an efficient manner. In a computer network, each network device usually plays a prominent role depending on its functions and works for different purposes at different segments.

Types of Network Devices

Different types of network devices are used in a computer network. They include:

• Network Hub
• Network Switch
• Modem
• Network Router
• Bridge
• Repeater

Network Hub

One kind of networking device in a computer network is the Hub Networking. It is used for communication with numerous network hosts and for data transferring as well. The data transfer in a computer network may be executed in the form of packets. The data can be transmitted to all the connected ports if the data processing is done from a host to a network hub. Inefficiencies and wastage may happen since all the ports identify the data path. A network hub is not considered safe and secure because of this process. Additionally, copying the data packets on all the ports may get the hub to work slower and then the network the switch needs to be utilized. Active hub & passive hub are the two types of network hubs. Some popular network hubs are 4 Port, 7 Port, 16 Port, and 3 Port.

Networking, an important aspect of connectivity

 What is a network in the world of the computer?

A network is basically a number of computers, mainframes, servers, network devices, peripherals, and other devices connected to each other for allowing the sharing of data. Internet is a prime example of a network, which is able to connect millions of people all over the world. To implement network you need network devices or equipment.

The main function of Network equipment is combining, splitting, boosting, switching, and directing data packets along with a computer network. Network equipment mainly helps in connection of devices and sharing of information. The layout or topography of the connected devices determines the network structure or design. Bus, mesh, tree, ring, star, and hybrid networks are the names of some popular network topologies. The parameters for network equipment include the following criteria: protocol, device type, and interface type. Different types of popular networking equipment are gateways, bridges, hubs, switches, routers, and transceivers.

The Network Expansion Module is one such network device. Module Networking helps in the splitting of optical signals through a single-mode optical fibre. The standard product usually will consist of 1 or 2 input ports and range up to 3 and 16 output ports. The Module in a compact package uses advanced planar technology and fused fibre for offering ultra-low excess loss with low polarization-dependent loss. They are mainly designed for optical networking applications.

A WAN the interface card is an expansion module.  WAN interface card  or "WIC" is a kind of special network interface controller card manufactured by Cisco which allows a network device like a router for connecting and transmitting data over a Wide Area Network or WAN. A WIC is comprised of a built-in channel service data unit interface for connecting with a digital circuit and also yields line monitoring and error correction.

Expansion Module like WAN Access, Fabric Module, Remote Module, Mezzanine Card, PCI, Fibre Channel are very popular among users.