Netgear XCM8810 Chassis User Manual - Page 173
Summary of PoE Features, Power Checking for PoE Module, Adding an
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NETGEAR 8800 User Manual Note: PoE capability for the XCM8848T modules are available only with the addition of an optional PoE Daughter Module. See Adding an XCM88P Daughter Card to an Existing Configuration on page 184 for more information. Summary of PoE Features The NETGEAR 8800 implementation of PoE supports the following features: • Configuration and control of the power distribution for PoE at the system, slot, and port levels • Real-time discovery and classification of IEEE 802.3af-compliant PDs and many legacy devices • Monitor and control of port PoE fault conditions including exceeding configured class limits and power limits and short-circuit detection • Support for configuring and monitoring PoE status at the system, slot, and port levels • Management of an over-subscribed power budget • Port LED control for indicating the link state • Support for hitless failover in a chassis with two MSMs For detailed information on using the PoE commands to configure, manage, and display PoE settings, see the NETGEAR 8800 Chassis Switch CLI Manual. Power Checking for PoE Module PoE modules require more power than other I/O modules. When a chassis containing a PoE module is booted or a new PoE module is inserted, the power drain is calculated. Before the PoE module is powered up, the chassis calculates the power budget and powers up the PoE module only if there is enough power. The chassis powers up as many I/O modules as possible with lower-numbered slots having priority. Note: If your chassis has an inline power module and there is not enough power to supply the configured inline power for the slot, that slot will not power on; the slot will not function in data-only mode without enough power for inline power. If a PoE module is inserted into a chassis, the chassis calculates the power budget and only powers up the PoE module if there is enough power. Installed modules are not affected. However, if you reboot the chassis, power checking proceeds as described in the previous Chapter 7. PoE | 173
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