HP ProCurve zl Series Planning And Implementation Manual
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HP ProCurve zl Series Planning And Implementation Manual

Power over ethernet (poe)
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Summary of Contents for HP ProCurve zl Series

  • Page 1 Planning and Implementation Guide Power over Ethernet (PoE) for zl and yl Products Power over Ethernet Devices www.procurve.com...
  • Page 3 ProCurve Power over Ethernet (PoE) for zl and yl Products Planning and Implementation Guide...
  • Page 4 Hewlett- consequential damages in connection with the furnishing, Packard. performance, or use of this material. The only warranties for HP products and services are set Publication Number forth in the express warranty statements accompanying 5991-6210 such products and services.

  • Page 5: Table Of Contents

    Contents 1 Introduction Overview ............1-1 Power Through the Cable .
  • Page 6 5 Infrastructure Requirements Air conditioning ..........5-1 Power requirements .

  • Page 7: Introduction

    Introduction This chapter provides an overview of Power over Ethernet (PoE) and a list of reasons why you might want to implement PoE in your environment. It discusses how PoE transmits power over twisted pair cable and the capabilities of the devices used to provide PoE. Overview Power over Ethernet technology allows IP telephones, wireless LAN Access Points and other appliances to receive power as well as data over existing LAN...
  • Page 8 Introduction Overview Power over Ethernet connections to embedded computers will allow a less expensive installation (no AC cabling, lower labor costs), facilitate updating the installation and repositioning of end devices (wireless access points, security cameras, and so forth) without electricians, while maintaining full control over every node through the internet.

  • Page 9: Power Through The Cable

    Introduction Overview Here are some reasons why you might want to do this: Simplifies installation and saves space - only one set of wires to bring to ■ your appliance. ■ Saves time and money - there is no need to pay for additional electrical power runs or to delay your installation schedule to make them.

  • Page 10: Poe Capabilities Of The Products

    Introduction Overview It does this by applying a small current-limited voltage to the cable and checks for the presence of a 25k ohm resistor in the remote device. Only if the resistor is present, will the full wattage be applied, but this is still current-limited to prevent damage to cables and equipment in fault conditions.
  • Page 11 Introduction Overview For example: ProCurve 3500yl#(config) no power pre-std-detect The dual-personality ports have either auto-sensing 10/100/1000Base-T RJ-45, or mini-GBIC connectivity. The mini-GBIC ports do not support PoE. If any of the mini-GBIC ports are used the corresponding RJ-45 port will not be supplied with PoE power.

  • Page 12: Power Redundancy

    Introduction Overview Power Redundancy There are two types of power supplied by the Series 5400zl switch power supplies: 12V power or system power ■ ■ 50V power or PoE power The 12V system power is used for the backplane and is what operates the internal components of the switch.

  • Page 13: Operating Rules

    Operating Rules This chapter discusses the operating rules and characteristics of the ProCurve product capabilities. The following products are discussed: ■ The ProCurve Switch 3500yl-24G-PWR (J8692A), is used as a PSE device to provide PoE power to PDs thru the 24 RJ45 ports. ■...

  • Page 14: Provisioning Power For Poe

    Operating Rules Provisioning Power for PoE Provisioning Power for PoE Both the 5400zl and the 3500yl switches support an external power supply that can provide either redundant or extra PoE power. It is important to understand how PoE power is provisioned in order to use these external power supplies efficiently.
  • Page 15 Operating Rules Provisioning Power for PoE Table 2-1. Maximum Power Allocations for the 3500yl Switches PoE Devices Internal Only Internal and External External Only PoE for Switch 398 watts available to 398 watts available to ports 1-24 The internal power supply 3500yl-24G-PWR ports 1-24.

  • Page 16: Poe Power

    Operating Rules Provisioning Power for PoE PoE Power It is important to understand the PoE power requirements of these switches because if the PoE power is not planned and implemented correctly, end devices connected to the PoE switch ports may not receive power if a switch PoE power source failure occurs or if the switch is over provisioned.

  • Page 17: Switch Priority Class

    Operating Rules Provisioning Power for PoE Switch Priority Class Port priority classification can be used by the switch to allocate power to ports. It is a prioritization scheme by which the user can assign a low (default), high, or critical priority to any given port. This assignment is done through the command line interface (see the Management and Configuration Guide which is on the ProCurve Web site, (See...

  • Page 18: Pd Power Classification

    Operating Rules Provisioning Power for PoE PD Power Classification A PD is classified based on the maximum power it draws across all input voltages and operational modes. The most common class is 0, in which the switch will allow a maximum draw of 15.4 watts per port. As an example, 15.4 watts - Power Loss (16%) = 12.95 watts.

  • Page 19: Planning And Implementation For The Series 3500Yl Switches

    Planning and Implementation for the Series 3500yl Switches This chapter discusses the planning process a user should follow to successfully implement PoE using a Series 3500yl Switch. After understanding what PoE is and its operating rules, the next step to implementation is planning.

  • Page 20: Procurve 3500Yl-24G-Pwr Configuration

    Planning and Implementation for the Series 3500yl Switches Planning Your PoE Configuration ProCurve 3500yl-24G-PWR Configuration The table in this example configuration contains entries that show the PoE power available for the 3500yl-24G-PWR. All 24 ports can receive up to 15.4 watts of PoE power Figure 3-1.
  • Page 21 Planning and Implementation for the Series 3500yl Switches Planning Your PoE Configuration The table in this example configuration contains entries that show the PoE power available for the 3500yl-24G-PWR. 3500yl 24 port switches 620 RPS/EPS Figure 3-2. Example of two 3500yl-24G-PWR Switches connecting to a ProCurve 620 External and Redundant Power Supply (J8696A) The same considerations for the mini-GBIC ports apply as in the previous example.

  • Page 22: Procurve 3500Yl-48G-Pwr Configuration

    Planning and Implementation for the Series 3500yl Switches Planning Your PoE Configuration ProCurve 3500yl-48G-PWR Configuration PoE power requirements are figured differently for the 3500yl-48G-PWR switch, see PoE Power on page 2-4. The table in this example configuration contains entries that show the PoE power available for the 3500yl-48G-PWR switch.
  • Page 23 Planning and Implementation for the Series 3500yl Switches Planning Your PoE Configuration For example, the switch starts with 398 watts. Then it reserves 22 watts per bank leaving 354 watts total for allocation. If ports 1-24 are chosen to be used then the 22 watts that was held in reserve for that bank of ports will be added back in for a total of 376 watts.
  • Page 24 Planning and Implementation for the Series 3500yl Switches Planning Your PoE Configuration The table in this example configuration contains entries that show the PoE power available for the 3500yl-48G-PWR. 3500yl 48 port switches 620 RPS/EPS Figure 3-4. Example of two 3500yl-48G-PWR Switches connecting to a ProCurve 620 External and Redundant Power Supply (J8696A) Source of Watts...

  • Page 25: Planning And Implementation For The Series 5400Zl Switch

    Planning and Implementation for the Series 5400zl Switch This chapter discusses the planning process a user should follow to successfully implement a PoE Series 5400zl Switch. After understanding what PoE is and its operating rules, the next step to implementation is planning. See Appendix A for an example list of considerations during the planning phase.
  • Page 26 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration Table 4-1. 5406zl Power Configurations Switch Model 5406zl Power Supply Model Redundancy Non-Redundant System and PoE Power Available J8712A J8713A (110 or 220 volts) (220 volts only) Standard PoE Power None 273 W Full —...
  • Page 27 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration Table 4-2. 5412zl Power Configurations Switch Model 5412zl Power Supply Model Redundancy System and PoE J8712A J8713A (110 or 220 volts) (220 volts only) Standard PoE Power None N+1 - Up to 546 W of PoE power Full - Up to 546 W of...
  • Page 28 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration In the following configuration examples, each example shows a complete configuration. A table shows the PoE power available to connected PoE devices when using just the switch and when connecting an external power supply.

  • Page 29: Procurve 5406Zl Configurations

    Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration ProCurve 5406zl Configurations The table in each example configuration contains entries that show the PoE power available for the PoE modules. 273 Watts for PoE 14 ports on module A and 2 ports on module B can receive up to 15.4 watts of PoE power Back Front...
  • Page 30 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration In this example, there are three modules in the chassis and therefore 22 watts is reserved for each module. In order to use the 22 watts, PDs must be connected to each module, or all ports on one module could have the PoE power disabled.
  • Page 31 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration 900 Watts for PoE Front Power Supply Back J8713A Figure 4-3. Example of a 5406zl with one power supply, J8713A In this example there is one J8713A power supply supplying 900 watts for PoE usage.
  • Page 32 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration 900 Watts 900 Watts for PoE for PoE Power Supply Front J8713A Figure 4-4. Example of a 5406zl with two power supplies, J8713A This configuration is an example of two power supplies supplying 900 watts each for a maximum of 1800 watts to a fully loaded chassis of 144 ports.
  • Page 33 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration 273 Watts 900 Watts for PoE for PoE Power Supply Power Supply Front J8713A J8712A Figure 4-5. Example of a 5406zl with two power supplies (J8712A and J8713A) In this example there is one J8712A and one J8713A power supply supplying 1173 watts for PoE usage.

  • Page 34: Procurve 5406Zl Configurations Using The Power Supply Shelf

    Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration ProCurve 5406zl Configurations using the Power Supply Shelf To Power To Power Source Source 5406zl EPS Cables Figure 4-6. Connecting the EPS to one 5406zl switch To Power To Power Source Source...

  • Page 35: Procurve 5412Zl Configurations

    Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration ProCurve 5412zl Configurations This section is divided into 3 sub-sections: Standard J8712A Configurations ■ ■ Standard J8713A Configurations Mixed J8712A and J8713A Configurations ■ Standard J8712A Configurations The table in each example configuration contains entries that show the PoE power available for the PoE modules.
  • Page 36 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration If PoE power is disabled to all ports on a module the 22 watts that was reserved for that module is returned to the pool of available watts and can be used by another module’s ports.
  • Page 37 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration 273 Watts for PoE 53 ports can receive up to 15.4 watts of PoE 273 Watts 273 Watts 5 ports must be used for PoE for PoE on this module Front Back Figure 4-9.
  • Page 38 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration 273 Watts 273 Watts for PoE for PoE 71 ports can receive up to 273 Watts 273 Watts 15.4 watts of PoE power for PoE for PoE Front Back Figure 4-10.

  • Page 39: Standard J8713A Configurations

    Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration Standard J8713A Configurations 900 Watts 900 Watts for PoE for PoE Front Back Figure 4-11. Example of a 5412zl with two power supplies, J8713A This configuration is an example of two power supplies supplying 900 watts each for a maximum of 1800 watts to a fully loaded chassis of 288 ports.
  • Page 40 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration 900 Watts for PoE 900 Watts 900 Watts for PoE for PoE Front Back Example of a 5412zl with three power supplies, J8713A This configuration is an example of three power supplies supplying 900 watts each for a maximum of 2700 watts to a fully loaded chassis of 288 ports.
  • Page 41 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration 900 Watts 900 Watts for PoE for PoE 900 Watts 900 Watts for PoE for PoE Front Back Figure 4-12. Example of a 5412zl with four power supplies, J8713A This configuration is an example of four power supplies supplying 900 watts each for a maximum of 3600 watts to a fully loaded chassis of 288 ports.

  • Page 42: Mixed J8712A And J8713A Configurations

    Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration Mixed J8712A and J8713A Configurations Although mixing power supplies is not recommended the following demonstrates the most common usages. Refer to page 4-9 for the discussion on failover in a mixed power supply environment. 900 Watts for PoE 273 Watts...
  • Page 43 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration 273 Watts for PoE 900 Watts 900 Watts for PoE for PoE Front Back Figure 4-14. Example of a 5412zl with three power supplies (one J8712A and two J8713A) This configuration is an example of three power supplies one J8712A supplying 273 watts and two J8713As supplying 1800 watts for a maximum of...
  • Page 44 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration 273 Watts 273 Watts for PoE for PoE 900 Watts 900 Watts for PoE for PoE Front Back Figure 4-15. Example of a 5412zl with four power supplies (two J8712A and two J8713A) In this example there are two J8712A and two J8713A power supplies supplying 2892 watts for PoE usage.
  • Page 45 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration To Power To Power Source Source EPS 1 EPS 2 To Power To Power Source Source EPS Cables 5412zl EPS 1 EPS 2 Figure 4-16. Connecting the EPS to one 5412zl switch Even thought either EPS port on the Power Supply Shelf can be connected to either EPS port on the switch, to avoid confusion, it is recommended that EPS 1 of the Power Supply Shelf be connected to EPS 1 of the switch.
  • Page 46 Planning and Implementation for the Series 5400zl Switch Planning Your PoE Configuration EPS 1 EPS 2 To Power To Power To Power To Power Source Source To Power To Power Source Source Source Source EPS 1 EPS 1 EPS Cables Figure 4-17.

  • Page 47: Infrastructure Requirements

    Infrastructure Requirements Air conditioning Power supplies create a great amount of heat. Ensure you have enough cool air to maintain an ambient temperature between 0°C to 50°C (32°F to 131°F) around the switch devices inside the rack. A typical 48 port PoE switch BTU rating is approximately 920. Adding in a maximum number of PoE powered devices (PD) connected to the switch at 15.4 watts, the BTU rating can jump to approximately 2280.

  • Page 48: Space

    Infrastructure Requirements Space Space These devices may be deeper (longer) than other equipment in your network due to the added PoE power supplies. Also if RPS units have been added to the rack or wiring closet, ensure enough space has been planned for all devices.

  • Page 49: Glossary

    Glossary Glossary active PoE port - PoE-enabled port connected to a PD and currently delivering power. priority class - Refers to the type of power prioritization where the switch uses Low (the default), High, and Critical priority assignments to determine which groups of ports will receive power.

  • Page 51: A Planning Considerations

    Planning Considerations This appendix is divided into three sections: General Considerations ■ ■ Specific Considerations for the 3500yl Switches Specific Considerations for the 5400zl Switches ■ These lists are in no way exhaustive, however answers to these and other questions will help define how many and what types of switches are needed to implement a PoE configuration.

  • Page 52: Specific Considerations For The 3500Yl Switches

    Planning Considerations Specific Considerations for the 3500yl Switches Specific Considerations for the 3500yl Switches The following is an example list of considerations during the planning phase specific to the Series 3500yl Switches: What if power is lost to the switch? ■...

  • Page 53: Specific Considerations For The 5400Zl Switches

    Planning Considerations Specific Considerations for the 5400zl Switches Specific Considerations for the 5400zl Switches The following is an example list of considerations during the planning phase specific to the Series 5400zl Switches: What if power is lost to the switch? ■...

  • Page 55: Index

    Index Numerics planning … 3-1, 4-1 planning considerations … A-1 3500yl specific consideration … A-2 PoE … 1-1 5400zl specific consideration … A-3 capabilities product capabilities … 1-4 configuration … 3-2 considerations planning … A-1 cable planning … 3-1, 4-1 data pairs …...
  • Page 58 Technical information in this document is subject to change without notice. © Copyright 2005 - 2007, Hewlett-Packard Development Company, L.P. Reproduction, adaptation, or translation without prior written permission is prohibited except as allowed under the copyright laws. Printed in Singapore February 2007 Manual Part Number 5991-6210...

This manual is also suitable for:

Procurve yl seriesProcurve 5406zlProcurve 5406zl-48gProcurve 5412zlProcurve 5412zl-96gProcurve 3500yl-24g-pwr ... Show all

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