Enterasys Networks G3G170-24, G3G124-24 Installing a Power Supply, Management of PoE Power to PDs

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Installing a Power Supply

Power Supply Addition or IOM Removal

When a power supply is added or an IOM is removed, the G3 responds to the increase in available power by:

1.Detecting the power supply addition and recalculating available power (adding capacity of the new power supply or accounting for less load with removal of an IOM).

2.Subtracting the power capacity for its base system and all installed modules from available power.

3.Distributing remaining power equally across installed PoE controllers by reprogramming maximum power in each controller.

Management of PoE Power to PDs

For each PoE‐capable IOM, you can configure how its PoE controller makes power available to attached powered devices (PDs). On a per module basis, you can configure:

Real‐time mode (default), in which the PoE controller calculates the power needed by a PD based on the actual power consumption of the attached devices.

Class mode, in which the PoE controller manages power based on the IEEE 802.3af definition of the class limits advertised by the attached devices, with the exception that for class 0 and class 4 devices, actual power consumption will always be used. In this mode, the maximum amount of power required by a device in the advertised class is reserved for the port, regardless of the actual amount of power being used by the device.

For more information on configuring Class mode, see the Enterasys G‐Series CLI Reference.

Installing a Power Supply

Power supplies are installed in either of the two slots located at the back of the chassis, as shown in Figure 2‐2 on page 2‐9. If you intend to install only a single power supply, it can be installed in either of the slots, although the PWR1 slot is left open for your convenience.

To install one or both power supplies in the G‐Series switch:

1.With an antistatic wrist strap attached to your wrist, unpack the power supply by removing it from its shipping box and stripping the packing material. (Save the shipping box and materials in the event the unit must be reshipped.)

2.Remove the power supply from its protective wrapping.

3.Examine the power supply carefully, checking for damage. If any damage is noted, do not install the power supply. Contact Enterasys Networks for instructions.

4.If necessary, remove the coverplate from its slot by loosening its captive screws. Retain the coverplate for future use.

5.Holding the power supply by its handle, position it with the LEDs to the left and align it with the slot opening.

Caution: Forcing a misaligned power supply into place can damage the power supply or chassis backplane.

Precaución: Colocar de manera forzada una fuente de poder o no colocarla bien alineada podría dañarla y/o maltratar el panel posterior del chasis.

2-8 Installation

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Contents Enterasys G-Series Page Page Regulatory Compliance Information AS/NZS Cispr Supplement to Product Instructions Safety Information Class 1 Laser Transceivers Warnhinweis Faseroptikanschlüsse Optische SicherheitDeclaration of Conformity Enterasys NETWORKS, INC. Firmware License Agreement Viii Page Page Contents Appendix a Specifications TroubleshootingIndex Tables Xiv Related Documents How to Use This GuideWho Should Use This Guide For information about Refer toDocument Conventions Commonly Used AcronymsGetting Help Getting Help Xviii About This Guide Introduction OverviewFeatures Standalone or Rack Mountable Chassis Powered Device Classifications PDs PoE Power over Ethernet SupportFan Management Features Features Introduction Installation Required and Shipped Separately Unpacking the G-Series SwitchShipped With the Switch Optional Enterasys ComponentsMounting the Switch Order of Installation StepsG3G124-24 Optional PoE Module Installation Considerations Placing the Switch on a Flat Surface Installing the Switch into a RackPower Supply Installation Considerations Power Supply RedundancySupported Power Configurations Allocation of PoE Power to Modules Power Distribution Upon Power Supply Removal or AdditionInstalling a Power Supply Management of PoE Power to PDsRemoving a Power Supply Power supply Power supply handle Captive screwsInstalling and Removing an IOM Installing an Optional PoE Module on the G3G-24TX IOMInstalling an IOM Installing a PoE module in the G3G-24TX IOMIOM slot IOM Initialization BehaviorIOM handle Connecting Power to the Switch Removing an IOMPower LED Displays Connecting to the Console PortConnecting to the RJ45 Console Port Display StatusRJ45 to DB9 Adapter Pinout Signal RJ45 Pin DB9 PinConsole Port Pinout Pin ConnectionConnecting to the USB Console Port Connecting to the NetworkConnecting UTP Cables to RJ45 Ports Connecting a UTP Cable Segment to RJ45 Port TX1+ RX1- TX2+ TX3+ RX3- RX2- TX4+ RX4 Installing Optional SFP/XFP Transceiver Type Switch or IOM PortsConnecting to the Network Connecting Fiber-Optic Cables to SFP/XFP Ports Removing an XFP/SFPCompleting the Installation Installing an Optional PoE Module in the G3G124-24 Switch Removing the Switch CoverInstalling the PoE Module Troubleshooting System LED Definitions IOM power off status LEDs Slot 2, 3Checking the LEDs Display StatusIOM Status LEDs Power LEDsFixed and IOM Port LEDs Using the Password Reset Button Locating the Password Reset buttonRemoving the Switch from a Rack Removing the Switch from a Rack Troubleshooting Specification Switch SpecificationsTable A-1 G3 Switch Specifications G3G124-24 and G3G124-24PPerformance Power SpecificationsProcessors/Memory PhysicalTable A-2 Power Supply Specifications Power Supply SpecificationsIOM Specifications Table A-3 G3G-24TX IOM SpecificationsTable A-4 G3G-24SFP IOM Specifications G3G-24SFPTable A-5 G3K-2XFP and G3K-4XFP IOM Specifications G3K-2XFP and G3K-4XFPTorque Values PoE Daughter Card SpecificationsTable A-6 G3G-POE Specifications Table A-7 Recommended Torque Values by Screw SizeTable A-9 MGBIC-LC01/MGBIC-MT01 Optical Specifications MGBIC-LC01/MGBIC-MT01 Specifications 1000BASE-SXTable A-8 Mini-GBIC Input/Output Port Specifications Table A-10 MGBIC-LC01/MGBIC-MT01 Operating RangeMGBIC-LC03 Specifications 1000BASE-SX MGBIC-02 Specifications 1000BASE-TMGBIC-LC04 Specifications 100BASE-FX MGBIC-LC05 Specifications 100BASE-FX MGBIC-LC07 Specifications 1000BASE-ELXMGBIC-08 Specifications 1000BASE-ELX MGBIC-LC09 Specifications 1000BASE-LXTable A-25 Recommended Cable Types and Specifications Gigabit Ethernet Transceiver XFP SpecificationsTable A-24 XFP Specifications Console Port Pinout AssignmentsTable A-26 Compliance Standards Regulatory ComplianceRegulatory Compliance Standards Index Index-2
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