Allied Telesis AT-8500 Series manual Power Options and Connectors

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Chapter 1: Overview

Power Options and Connectors

This section provides information about the power options and features on the AT-8500 Series switches:

ˆ“RPS Connector,” next

ˆ“AC Power Connector” on page 39

ˆ“DC Power Connector” on page 39

RPS Connector The RPS connector on the back panel of the switch connects to an optional AT-RPS3004 or AT-RPS3104 redundant power supply unit. Figure 8 illustrates an AT-RPS3004 unit. A redundant power supply unit can provide power to the switch in the event the switch’s internal power supply should fail.

Note

The AT-RPS3004 unit is used with the AT-8516F/SC, AT-8524M, AT-8550GB, and AT-8550SP switches. The AT-RPS3104 unit is used with the AT-8524POE switch. Do not use the AT-RPS3004 unit with the AT-8524POE switch.

A redundant external power supply comes with one pre-installed power module and has three empty slots for additional power modules. Each power module can support one switch, making the unit capable of supporting up to four switches simultaneously.

Figure 8. AT-RPS3004 Redundant Power Supply Unit

Note

DC models of the AT-8500 Series switches do not feature an RPS connector.

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Contents Installation Guide Page Electrical Safety and Emissions Standards Translated Safety Statements Contents Page Figures Figures Tables Tables Preface Safety Symbols Used in this Document Symbol Meaning DescriptionWhere to Find Web-based Guides Management Software Updates Contacting Allied TelesisOverview ChapterModel Configurations Model ConfigurationModel Descriptions Port LEDs System LEDsShows 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 Port Descriptions 10/100Base-TX Twisted Pair PortsMaximum 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 and SFP Slots Gbic ModuleModule Expansion Slots State Description Twisted Pair Port LEDs LED Mode Select ButtonLEDs 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 Few Basics about Ethernet Switching MAC Address Table Duplex ModeStore Forward Back Pressure and Flow ControlOverview Collapsed Backbone Topology Power Workgroup TopologyNetwork Topologies Mixed Topology Mixed Topology Overview Installation Reviewing Safety Precautions Page Installation Selecting a Site for the Switch Model Speed Cable Type Planning the InstallationMaximum Maximum Unpacking the Switch Installing the Switch in a Rack Installation Page Installing an Optional Expansion or Stacking Module Removing the Expansion Slot FaceplateAT-A46 Installing an Optional Gbic Ferrules of the optical connector Bore Installing an Optional SFP Transceiver Page Cabling the Switch Cabling Twisted Pair PortsCabling Fiber Optic Ports SC Port Transmitter Fiber Connector Cabling Expansion Modules Powering on an AC Powered Switch Page Wiring and Powering on an DC Powered Unit Positive, Ground, and Negative Terminals8mm ±1mm 31in. ±0.039in Installation Starting a Local Management Session Installation Warranty Registration Installation PWR LED is Off Twisted Pair Port Link LED is OffFiber Optic Port Link LED is Off PoE Device is Not Receiving Power Fault LED is On ContinuouslyCannot Establish a Local Management Session Appendix a Physical SpecificationsEnvironmental Specifications Power Specifications Safety and Electromagnetic Emissions CertificationsPin MDI Signal MDI-X Signal Pin MDI SignalSignal RJ-45 Twisted Pair Port PinoutsMDI Configuration MDI-X Configuration Pinout Pair Unused RX- and Vport-2 TX- and Vport-2AT-8516F/SC Fiber Optic Port Specifications Pin Signal RS-232 Terminal Port PinoutsRPS Connector Port Pinouts Pin Definition3V RS Pin13 3.3V RS+ Dual SC Type Connector