>  POWER OVER ETHERNET • PoE FAQs • Compatible Devices • Competitive Analysis • Web Interface Demo • Where to Buy? • Reseller Info • About SEI >  JUICE BOX • Juice Box Features • Topography • TMC Lab Report • PoE Splitters >  JUICE BOX MX >  BACKUP JUICE PoE UPS >  JUICE BOX XP	What is a Juice Box? The Juice Box is SEI's midspan Power over Ethernet solution for VoIP, Wireless Access Points, and other PoE applications. The Juice Box is fully compliant with the IEEE 802.3af Power over Ethernet standard and will also provide power to many legacy devices. With the Juice Box there is no need to replace your existing Ethernet infrastructure to realize the advantages of Power over Ethernet. Why use Power over Ethernet (PoE)? PoE allows power to be supplied to end devices, such as Wireless Access Points or VoIP Phones, directly through the existing LAN cables. By supplying the power mid-span, you can centralize power distribution and backup without the need to increase infrastructure. What are the advantages of mid-span power? The Juice Box eliminates multiple cables to networking devices by injecting power on the Ethernet cable. Installation costs as well as desktop and wall clutter are significantly reduced. In addition to eliminating multiple cables, the Juice Box allows centralized backup power for all connected devices. Centralized UPS backup is less expensive, more reliable and easier to maintain than individual UPS backup. The Juice Box can be supplied with backup power from the existing Ethernet switch UPS or, to increase reliability, with its own dedicated SEI supplied UPS. How does the Juice Box increase Quality of Service? Voice-Over-IP (VoIP) telephony allows the convergence of voice and data traffic on a packet switched data network. Organizations implementing this technology must provide QoS equivalent to that of traditional PBX and Centrex solutions. This requires centralized power and battery backup for VoIP phone sets to guard against the loss of AC power and the resulting loss of phone service. For a technical discussion of this topic, see our white paper, VoIP Phoneset Power Via the Ethernet.  While not formally termed QoS, other Ethernet applications such as wireless access points and security cameras also have high availability requirements. SEI's Juice Box, coupled with a UPS, provides simple, centralized, guaranteed power for VoIP phonesets and other Ethernet-based applications. How does the Juice Box reduce cost? With a full 24 ports of power for the cost of a typical 12 port solution, the Juice Box allows easy migration to IP-based telephony with no expansion costs and without the replacement of expensive network infrastructure.  The Juice Box can either be supplied with battery backup using the UPS provided by the existing Ethernet switch or to increase reliability, with its own dedicated SEI supplied UPS or DC PowerBox. What do I look for in mid-span power? Consider the following: Is it a cost effective solution? Is it manageable through a Web/SNMP interface? Can power be backed up independent of a central UPS? Where is it made? Is the manufacturer licensed to make and sell the device so it doesn't infringe on the patent? How many ports are powered by each PoE chip? Is the manufacturer experienced delivering power inline? Click here to read the full text. How do I add backup power? If you lose premise power, midspan devices are typically backed up using standard UPS methodology. However, applying a significant additional draw to the UPS can severely impact hold over time. 30 minutes of hold over for a typical switch configuration can be reduced to 5 minutes or less by adding a midspan and 24 VoIP phones. Upgrading or replacing the existing UPS to maintain adequate hold over can be very expensive. Alternatively, the Juice Box MX has an integrated UPS interface to accept BACKUP JUICE. This DC power pack will provide power directly to the PoE devices without stealing power from the main UPS. BACKUP JUICE is available in a variety of hold over time configurations to meet your specific needs. Why work with SEI? Founded in 1977, System Engineering International is a leader in centralized, premises powering.  Our products power the majority of Centrex phone systems in the U.S. With a tremendous presence in the large business, education, and government markets, SEI has the experience to support the demanding requirement of the enterprise customer.
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