PoE

Overview

Power over Ethernet (PoE) assigns attributes to PoE-enabled Optical Network Terminals (ONTs) to facilitate external power devices, such as Wireless Access Points (WAPs). 

PoE Definition  

Power over Ethernet (PoE) is a standard that allows Ethernet cables to transmit data and power simultaneously using a single network cable. This allows system integration and network installers to deploy powered devices in locations that lack electrical circuitry. In addition, PoE eliminates the expense of installing additional electrical wiring, requiring professional electrical installers to ensure that strict conduit regulations are followed.

PoE technology sends 10/100/1000 Mbps of data and 15W, 30W, 60W, and up to 90W of power budget to devices over Cat5e, Cat6, Cat6a. Cat7 and Cat8 Ethernet cables for a maximum distance of 100m.

PoE technology relies on the IEEE 802.3af, 802.3at, and 802.3bt standards set by the Institute of Electrical and Electronics Engineers and governs how networking equipment should operate to promote interoperability between devices.

PoE-capable devices can be power sourcing equipment (PSE), powered devices (PDs), or sometimes both. The device that transmits power is the PSE, while the device that is powered is a PD. Most PSEs are either network switches or PoE injectors intended for use with non-PoE switches.

PoE- Dia

Default Profile

Panorama PON initially creates one Default PoE profile. This profile is assigned to all PoE-enabled ONTs when they are initially provisioned. The default profile can be edited but not deleted. New profiles can be defined and used as needed, the default profile does not have to be used.

However, lines that are associated with a non-default profile are automatically activated. Because a profile can be associated with multiple lines at once, this is the most efficient way to activate lines.

PoE Profile Attributes


 

The following PoE profile attributes are available for user creation and editing.

Status

  • Admin State - Select whether the Admin port is Enable or Disable.
    • Default is Enable.

Power

  • Power Pairs - Select whether the power pairs are to use Alternative A or Alternative B.
    • Default is Alternative A
  • Power Priority - Power Priority is used to decide the order to assign PoE power to ports.  Critical ports are assigned first, followed by High, then Low. 
    • Default is Critical 
  • Hold Time - Specify whether the hold time should Never Expire, be Immediate, or specify a specific Hold Time.
    • Never Expires | Immediate | Hold Time (default - Never Expires)
       Note: If Never Expire or Immediate is selected, any Hold Time duration is ignored.
  • Hold Time (secs) - Specify the hold time when Hold Time is selected
    • Default is 5 seconds.
  • Enable Power Override - Specify whether power will be overridden.
  • Power Override Watts - Applied when Power Override is enabled. 
    • Range is 0 - 10 watts (Default is 0)