The LED indicator will change depends on the PD status.

Green: It represents PD is connecting with the POE hub system and working

normally.

Yellow: It represents there is no PD connecting with the port.

RED: It represents PD’s power request is over the system support limit or the cable is short.

Fault Status: display the PD error status message. There are three error status and explain as following.

Null: It means there is no PD connected or the connected PD device status is normal.

Overload: It means the current is over the PD current classification limited (475mA @ 48V DC) that the situation happens over 50msec.

Mode Status: display the PD current operation mode status.

V sample or I sample: It means " Current sample or Voltage sample”. When PD is detected and current is supplied, the POE hub will keep detecting and sampling some current or voltage to ensure whether the PD still present on this port. It is a IEEE 802.3af operating procedure.

R detect: When the port doesn’t connect with any PD, the POE hub will poll each port and detects the resistor.

Figure 4-5. Port Specific Control interface

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LevelOne POH-0850TX user manual Port Specific Control interface
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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.
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