Specifications
EATON Pulsar Series and Powerware Series Product Catalogue
30
Eaton provides you with complete solutions for protecting  
your critical network applications.
Enterprise IT networks are undergoing major changes. 
One of these developments is Midspan for VoIP (Voice over IP) 
telephone technology which requires the same availability  
and voice quality as conventional telephones. In addition, Power 
over Ethernet (PoE) technology can be used to supply IP network 
equipment such as IP telephones and WiFi access points using 
the existing local network cables.
To ensure total availability, Eaton provides a solution that is:
• Reliable: a Power over Ethernet system protected by a UPS 
eliminates power cuts and ensures that the IP telephone 
network is always available
• Economical: power is supplied to the equipment connected 
to the IP network over the existing wiring
• Simple to install: “plug and play” installation 
This technology has two advantages:
• Itprovidesamorepractical,cheapersupplyforthe 
equipment connected
• Thesupplytothewholeinstallationcanbeprotected 
centrally directly from the switch/distribution enclosure
Power over Ethernet can be installed in two ways:
• UsingaPoEmidspansystem
• UsingPoEEthernetswitches. 
Both solutions comply with IEEE 802.3af which ensures 
interoperability between the various terminal suppliers
When supplied by a UPS, both solutions provide a level of  
availability and reliability equivalent to conventional switched 
telephone networks, but with all the advantages of IP telephony.
Unique: Crisis Management for PoE
UPS communicates with Midspan (NM2 version) via network 
and launches pre-defined actions. In case of a power failure the 
Midspan NM2 can shutdown non-priority PoE ports to increase 
the availability of critical ports.
Eaton Midspan for VoIP
Ethernet PoE switch solution 
Network rack in a data/communications centre 
Ethernet cable - powered by PoE 
(category 5 cable)
Ethernet cable - unpowered 
(category 5 cable)
Connection to the trunk
AC supply (optical fibre, etc.)
Midspan
Switches
UPS
Ethernet cable - powered by PoE 
(category 5 cable)
Ethernet cable - unpowered 
(category 5 cable)
Connection to the trunk
AC supply (optical fibre, etc.)
PoE switches
UPS
The midspan unit can be installed between a standard Ethernet switch 
and the terminals without modifying the existing wiring. It is the ideal  
solution for updating equipment: quick and easy to install, improved 
continuity of service, cheaper than adding new PoE switches. This solution 
improves the availability of critical applications even further when used 
with remote supervision of the midspan and the UPS.
The PoE switches incorporate Power over Ethernet technology to provide 
a DC supply on the Ethernet ports. This solution is the most suitable when 
installing a new switch.
PoE Midspan solution 
Network rack in a data/communications centre 










