Overview

Gigabit Ethernet Ports

Twisted Pair Ports

The AT-9000/28 Gigabit Ethernet ecoSwitch features 24 twisted pair 10/ 100/1000Base-T ports, and four combo SFP/copper ports.

The twisted pair ports feature 8-pin RJ-45 connectors. (For the port pinouts, refer to “10/100/1000Base-T Twisted Pair Port Connectors” on page 48.)

The ports on the AT-9000/28 Gigabit Ethernet ecoSwitch are 1000Base-T, 100Base-TX and 10Base-T compliant and are capable of 1000 megabits per second (Mbps), 100 Mbps and 10 Mbps speeds.

The ports are IEEE 802.3u Auto-Negotiation compliant. With Auto- Negotiation enabled, the switch automatically matches the highest possible common speed between each switch port and each end node. For example, if an end node is capable of only 1000 Mbps, the switch sets the port connected to the end node to 1000 Mbps.

The default setting for the twisted pair ports is Auto-Negotiate, which automatically determines the duplex mode setting. Each twisted pair port on the switches is capable of operating in either half- or full-duplex mode.

Note

In order for the switch to set the duplex mode for each port correctly, the end nodes that you connect to the switch ports should also use Auto-Negotiation. Otherwise, a duplex mode mismatch can occur, affecting network performance. For further information, refer to “Duplex Mode” on page 21.

Each twisted pair port has a maximum operating distance of 100 m (328 feet).

For 10 Mbps operation, Category 3 or better 100 ohm shielded or unshielded twisted pair cabling is required. For 100 or 1000 Mbps operation, Category 5 and Enhanced Category 5 (5E) or better 100 ohm shielded or unshielded twisted pair cabling is required. For cable specifications, go to “Twisted Pair and Fiber Optic Cable Specifications” on page 29

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Allied Telesis AT-9000/28 manual Gigabit Ethernet Ports, Twisted Pair Ports
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AT-9000/28 specifications

The Allied Telesis AT-9000/28 is a versatile and robust network switch designed for organizations seeking to enhance their networking capability. This Layer 2 managed switch delivers a high degree of performance and reliability, making it an ideal choice for businesses that require a seamless network experience.

One of the main features of the AT-9000/28 is its 28 ports, which include 24 Fast Ethernet ports and 4 Gigabit Ethernet uplink ports. This allows for flexible network configuration and scalability, accommodating both wired and wireless devices efficiently. The switch also supports auto-negotiation and auto-MDI/MDI-X, which simplifies installation and connectivity by automatically detecting and configuring the appropriate settings.

The AT-9000/28 employs advanced switching technologies, such as IEEE 802.1Q VLAN tagging, which enables the segregation of traffic for improved security and performance. This feature is crucial for businesses that require data isolation between different departments or user groups. In addition, the switch supports quality of service (QoS) protocols, allowing for traffic prioritization. This is particularly beneficial for organizations that handle multimedia applications or VoIP services that demand reliable bandwidth.

Another significant characteristic of the AT-9000/28 is its support for port mirroring. This capability is essential for network monitoring and troubleshooting, as it allows administrators to track and analyze network traffic efficiently. Furthermore, the switch supports multiple user authentication methods, including RADIUS and TACACS+, thus enhancing network security.

The AT-9000/28 is built with energy efficiency in mind, featuring Energy Efficient Ethernet (EEE) technology. This reduces power consumption during periods of low traffic without compromising performance, which aids in lowering overall operational costs.

In terms of management, the AT-9000/28 offers versatile management options, including a web-based GUI, Command Line Interface (CLI), and SNMP support. This flexibility enables network administrators to configure, monitor, and troubleshoot the switch easily.

Overall, the Allied Telesis AT-9000/28 is a reliable switch well-suited for a variety of network environments. Its combination of performance, security features, and energy efficiency makes it an excellent choice for organizations looking to optimize their network infrastructure. With robust capabilities and advanced technologies, the AT-9000/28 stands out as a valuable addition to any networking setup.
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