Allied Telesis AT-FS750/24, AT-FS750/16 manual Troubleshooting, Chapter

Page 39

Chapter 3

Troubleshooting

This chapter contains information on how to troubleshoot the switch if a problem occurs.

Note

For further assistance, please contact Allied Telesis Technical

Support. Refer to “Contacting Allied Telesis” on page 14.

Check the POWER LED on the front of the switch. If the LED is off, indicating that the unit is not receiving power, do the following:

ˆEnsure that the power cord is securely connected to the power source and to the AC connector on the back panel of the switch.

ˆVerify that the power outlet has power by connecting another device to it.

ˆConnect the unit to another power source.

ˆUse a different power cord.

ˆVerify that the voltage from the power source is within the required levels for your region.

Verify that the LINK/ACT LED for each port is ON. If a LINK/ACT LED is

OFF, do the following:

ˆVerify that the end node connected to the port is powered on and is operating properly.

ˆVerify that the twisted pair cable is securely connected to the port on the switch and to the port on the end node.

ˆEnsure that the twisted pair cable does not exceed 100 meters (328 feet).

ˆVerify that you are using the appropriate category of twisted pair cable: Category 3 or better for 10 Mbps operation and Category 5 and Category 5E for 100 and 1000 Mbps operation.

Note

A 1000Base connection may require five to ten seconds to establish a link.

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Contents Installation Guide Page Electrical Safety and Emissions Standards Translated Safety Statements Contents Contents Figures Figures Tables Tables Preface Symbol Meaning Description Safety Symbols Used in this DocumentWhere to Find Web-based Guides Contacting Allied Telesis Management Software UpdatesChapter OverviewFeatures AT-FS750/16 Front and Back PanelsUplink Combo Ports PortsState Description LEDsSpeed Power Supply Network Topologies Power Workgroup TopologyAT-FS750/16 Collapsed BackboneOverview Installation Reviewing Safety Precautions Page Selecting a Site for the Switch Cable Specifications MaximumSpeed Type of Cable Unpacking the Switch Installing the Switch on a Desktop Attaching the Rack-Mount Bracket to the AT-FS750/16 Switch Installing the Switch in an Equipment RackMounting the AT-FS750/16 Switch in an Equipment Rack Installing an Optional SFP Transceiver SFP Transceiver Installation Cabling the Switch Powering On the Switch Troubleshooting Troubleshooting Power Specifications Technical SpecificationsPhysical Specifications Environmental SpecificationsSafety and Electromagnetic Emissions Certifications Connectors and Port PinoutsPin Signal Pin Pair Signal Appendix a Technical Specifications

AT-FS750/24, AT-FS750/16, FS750/24, FS750/16 specifications

The Allied Telesis AT-FS750 series is a robust line of Fast Ethernet switches designed for efficient networking in both small and medium-sized business environments. This series includes models such as the AT-FS750/24 and AT-FS750/16, as well as the FS750/16 and FS750/24, each offering unique features tailored to specific network requirements.

One of the main features of the AT-FS750 series is its high port density, with models like the FS750/24 providing 24 Fast Ethernet ports and models like the FS750/16 offering 16 ports. This extensive port availability allows organizations to expand their networks seamlessly, accommodating various devices from computers to printers without the need for additional switches.

The switches support a range of Ethernet technologies, including auto-negotiation, which automatically adjusts the speed and duplex settings efficiently, ensuring optimal performance. This feature is particularly beneficial in dynamic network environments where devices of varying speeds may be connected.

Reliability is a hallmark of the AT-FS750 series, as these switches are designed with enhanced power supply features that allow for redundancy and minimize downtime. The devices also come equipped with advanced network management features, enabling administrators to efficiently monitor and control network traffic. All models in the AT-FS750 series support VLAN (Virtual Local Area Network) configuration, allowing for network segmentation and improved security.

Moreover, the AT-FS750 series switches implement Quality of Service (QoS) mechanisms that prioritize critical network traffic, ensuring that key applications, such as voice over IP and video conferencing, receive the bandwidth they need for uninterrupted service. This capability is crucial for businesses that rely on consistent communication channels.

Additionally, the switches offer a compact form factor, making them suitable for installation in a variety of environments, including smaller server rooms and office spaces. Their fanless design contributes to quiet operation, ideal for workspaces that require a noise-free atmosphere.

In summary, the Allied Telesis AT-FS750/24, AT-FS750/16, FS750/16, and FS750/24 switches are designed with reliability and efficiency in mind. With advanced Ethernet technologies, extensive management features, and a focus on security and performance, these switches cater to businesses looking for scalable networking solutions that grow with their evolving needs.
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