1. Introduction

Power-over-Ethernet (PoE) eliminates the need to run 110/220 VAC power to other devices on a wired LAN. Using Power-over-Ethernet system installers need to run only a single CAT5 Ethernet cable that carries both power and data to each device. This allows greater flexibility in the locating of network devices and significantly decreasing installation costs in many cases.

There are two system components in PoE -- the Power Sourcing Equipment (PSE) initiates the connection to the second component, the Powered Device (PD). The current is transmitted over two of the four twisted pairs of wires in a Category-5 cable.

Power over Ethernet follows the IEEE 802.3af and is completely compatible with existing Ethernet switches and networked devices. Because the Power Sourcing Equipment (PSE) tests whether a networked device is PoE-capable, power is never transmitted unless a Powered Device is at other end of the cable. It also continues to monitor the channel. If the Powered Device does not draw a minimum current, because it has been unplugged or physically turned off, the PSE shuts down the power to that port. Optionally, the standard permits Powered Devices to signal to the PSEs exactly how much power they need.

Features

POH-0850TX, 8-port power over Ethernet Hub

IEEE802.3af compliance, Power over Ethernet Mid-Spain mode

Remote power feeding up to 100 meters and for IEEE802.3 10Base-T, IEEE 802.3u 100Base-TX standard

Auto detect PD and classification power consumption level

Support manual control port detect and classification

Support system calibrate

Support Auto MDI/MDI-X depends on the uplink switch port.

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LevelOne POH-0850TX user manual Introduction, Features

POH-0850TX specifications

The LevelOne POH-0850TX is a powerful and versatile Power over Ethernet (PoE) switch designed to meet the growing demands of modern network environments. With its robust features and advanced technologies, this switch is an ideal choice for businesses looking to simplify their networks while providing reliable power to connected devices.

One of the standout features of the POH-0850TX is its ability to deliver PoE power through its network ports. It supports the IEEE 802.3af and IEEE 802.3at standards, allowing it to provide up to 30 watts of power per port. This capability is essential for powering devices such as IP cameras, VoIP telephones, and wireless access points without the need for additional power sources. With a total power budget of 130 watts, the switch can efficiently support multiple devices simultaneously, making it perfect for small to medium-sized businesses.

The POH-0850TX offers eight 10/100/1000Mbps Gigabit Ethernet ports, ensuring high-speed data transmission and minimal latency. This is crucial for businesses that rely on real-time data access and communications. Each port is equipped with auto-negotiation capabilities, allowing the switch to automatically detect and optimize connection settings based on the connected devices.

In terms of security, the LevelOne POH-0850TX incorporates advanced features such as VLAN support and port-based network access control (PNAC). These functionalities help safeguard the network by ensuring that only authorized devices can connect and communicate, reducing the risk of unauthorized access.

The build quality of the POH-0850TX also contributes to its reliability. It comes in a sturdy metal chassis designed for durability, making it suitable for both desktop and rack-mounted deployments. The switch is fanless, allowing for silent operation, which is a significant advantage for noise-sensitive environments.

Management features of the POH-0850TX include plug-and-play operation, eliminating the need for complex configurations, and allowing for easy installation and setup. Additionally, the switch supports LED indicators for monitoring port status and power supply, enabling administrators to quickly assess the operational status of connected devices.

In summary, the LevelOne POH-0850TX is an efficient and reliable PoE switch equipped with essential features and technologies that cater to the power and connectivity needs of modern network infrastructures. It stands out in its ability to simplify deployments while enhancing overall network performance, making it a valuable asset for any business investing in network technology.