Networking Overview, Introduction to TCP/IP

Chapter

10. Networking Overview

This chapter will try to give you a detailed instruction on how to network the DVR. Before we begin the process of networking your digital recorder we should have a working knowledge of what a network is and how it works. This will be a helpful in completing the networking process.

10.1 Introduction to TCP/IP

TCP/IP is the suite of protocols used by the Internet and most LANs (Local Area Networks) throughout the world. In TCP/IP, every host (computer or other communications device) that is connected to the network has a unique IP address. By doing this you are giving your device a unique address similar to the address of your house. An IP address is composed of four octets (numbers in the range of 0 to 255) separated by decimal points. The IP address is used to uniquely identify a host or computer on the LAN. For example, a computer with the hostname Workstation could have an IP address of 192.168.1.127.

You should avoid giving two or more computers the same IP address by using the range of IP addresses that are reserved for private, local area networks; this range of IP addresses usually begins with the octets 192.168. The first three octets of an IP address should be the same for all computers in the local area network. For example, if a total of 253 computers exist in a single LAN, the IP addresses could be assigned starting with 192.168.1.x, where x represents a number in the range of 2 to 254.

10.2 Subnet Masks

Each host in a LAN has a subnet mask. The subnet mask is an octet that uses the number 255 to represent the network address portion of the IP address and a zero to identify the host portion of the address. For example, the subnet mask 255.255.255.0 is used by each host to determine which LAN or class it belongs to. The zero at the end of the subnet mask represents a unique host within that network. Basically the subnet mask represents the city you live in for your home address, but in this case you are stating the network you belong too.

EDR810M, EDR410H, EDR810H, EDR410M specifications

The EverFocus EDR410M, EDR810M, and EDR410MW represent a significant leap in the domain of mobile video recorders, tailored specifically for applications in transportation and surveillance. These cutting-edge devices blend advanced technology, user-friendly interfaces, and robust construction to cater to an array of environments.

The EDR410M is a compact mobile DVR designed primarily for use in vehicles. This model supports four-channel recording, allowing for multiple cameras to be connected and monitored simultaneously. It features H.264 video compression, which ensures high-quality video at lower bit rates, optimizing storage without sacrificing clarity. The device also boasts real-time recording, enabling continuous surveillance, essential for transporting valuable goods or ensuring passenger safety.

In contrast, the EDR810M expands upon these capabilities with an impressive eight-channel recording system. This model is ideal for larger fleets or environments where comprehensive monitoring is necessary. Like the EDR410M, it utilizes H.264 compression technology and offers HDMI output for seamless connection to external displays. The EDR810M also features advanced event trigger functions, which automatically start recording in response to specific actions, such as sharp turns or sudden braking, enhancing the overall security protocol.

The EDR410MW stands out with its built-in Wi-Fi capability, providing users with the ability to access footage remotely. This feature is particularly valuable for fleet managers who need instant access to video data for review and incident analysis. All three models support a variety of storage options, including SSD and HDD, accommodating the diverse needs of modern transportation services.

Another key characteristic shared by these models is their rugged design, ensuring resilience against harsh environmental conditions. They are built to withstand vibrations and shocks, as commonly experienced in mobile applications. Furthermore, they come equipped with GPS functionality, enabling location tracking and route mapping for optimizing logistics.

Overall, the EverFocus EDR410M, EDR810M, and EDR410MW embody a blend of innovative features and robust technology that are crucial in the mobile surveillance market. These devices empower fleet managers and security personnel with the tools they need to enhance safety, accountability, and efficiency in their operations.