Dell PowerConnect J-SRX210 Hardware Guide - Page 47

CHAPTER 4 J-SRX210 Services Gateway Power over Ethernet Support This chapter includes the following topics: • J-SRX210 Services Gateway PoE Overview on page 31 • Configuring PoE Functionality on the J-SRX210 Services Gateway on page 33 J-SRX210 Services Gateway PoE Overview Introduction This topic includes the following sections: • Introduction on page 31 • PoE Classes and Power Ratings on page 32 Power over Ethernet (PoE) is the implementation of the IEEE 802.3 AF and IEEE 802.3 AT standards that allow both data and electric power to pass over a copper Ethernet LAN cable. The J-SRX210 Services Gateway supports PoE on four ports, which supply electric power over the same ports that are used to connect network devices. PoE ports allow you to plug in devices that require both network connectivity and electric power, such as VoIP and IP phones and wireless access points. You can configure the gateway to act as power sourcing equipment for devices connected on the designated ports. Table 16 on page 31 lists the J-SRX210 Services Gateway PoE specifications. Table 16: J-SRX210 Services Gateway PoE Specifications Power Management Schemes Values Supported standards • IEEE 802.3 AF • IEEE802.3 AT (PoE+) • Legacy (pre-standards) 31