Allied Telesis AT-8500 Series manual Selecting a Site for the Switch

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AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide

Selecting a Site for the Switch

Observe the following requirements when choosing a site for your switch:

ˆIf you plan to install the switch in an equipment rack, check to be sure that the rack is safely secured and that it will not tip over. Devices in a rack should be installed starting at the bottom, with the heavier devices near the bottom of the rack.

ˆIf you are installing the switch on a table, be sure that the table is level and secure.

ˆThe power outlet for the switch should be located near the unit and should be easily accessible.

ˆThe site should provide for easy access to the ports on the front of the switch. This will make it easy for you to connect and disconnect cables, as well as to view the switch’s LEDs.

ˆTo allow proper cooling of the switch, air flow around the unit and through its vents on the side and rear should be unrestricted.

ˆDo not place objects on top of the switch.

ˆDo not expose the switch to moisture or water.

ˆMake sure that the site is a dust-free environment.

ˆYou should use dedicated power circuits or power conditioners to supply reliable electrical power to the network devices.

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Contents Installation Guide Page Electrical Safety and Emissions Standards Translated Safety Statements Contents Page 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 OverviewModel Configuration Model ConfigurationsPort LEDs System LEDs Model DescriptionsShows the front and back panels of the AT-8524M switch Shows the front and back panels of the AT-8524POE switch Shows the front and back panels of the AT-8550GB switch AT-8550SP Switch Front and Back Panels 10/100Base-TX Twisted Pair Ports Port DescriptionsMaximum Distance 10/100/ 1000Base-T Twisted Pair Ports 100Base-FX Fiber Optic Ports Type of Cable Power Over Ethernet Minimum Power Maximum Power Class Gbic Module Gbic and SFP SlotsModule Expansion Slots Twisted Pair Port LEDs LED Mode Select Button LEDsState Description Mode FDX OFF Indicates that the port is operating at 10 or Fiber Optic Port LEDs Gbic and SFP Expansion Slot LEDs Maste RS-232 Terminal Port Power Options and Connectors AC Power Connector DC Power Connector MAC Address Table Duplex Mode Few Basics about Ethernet SwitchingBack Pressure and Flow Control Store ForwardOverview Power Workgroup Topology Network TopologiesCollapsed Backbone Topology Mixed Topology Mixed Topology Overview Installation Reviewing Safety Precautions Page Installation Selecting a Site for the Switch Planning the Installation MaximumModel Speed Cable Type Maximum Unpacking the Switch Installing the Switch in a Rack Installation Page Removing the Expansion Slot Faceplate Installing an Optional Expansion or Stacking ModuleAT-A46 Installing an Optional Gbic Ferrules of the optical connector Bore Installing an Optional SFP Transceiver Page Cabling Twisted Pair Ports Cabling the SwitchCabling Fiber Optic Ports SC Port Transmitter Fiber Connector Cabling Expansion Modules Powering on an AC Powered Switch Page Positive, Ground, and Negative Terminals Wiring and Powering on an DC Powered Unit8mm ±1mm 31in. ±0.039in Installation Starting a Local Management Session Installation Warranty Registration Installation Twisted Pair Port Link LED is Off PWR LED is OffFiber Optic Port Link LED is Off Fault LED is On Continuously PoE Device is Not Receiving PowerCannot Establish a Local Management Session Physical Specifications Environmental SpecificationsAppendix a Safety and Electromagnetic Emissions Certifications Power SpecificationsRJ-45 Twisted Pair Port Pinouts Pin MDI SignalSignal Pin MDI Signal MDI-X SignalUnused RX- and Vport-2 TX- and Vport-2 MDI Configuration MDI-X Configuration Pinout PairAT-8516F/SC Fiber Optic Port Specifications RS-232 Terminal Port Pinouts Pin SignalPin Definition RPS Connector Port PinoutsPin 3V RS13 3.3V RS+ Dual SC Type Connector