Eaton PoE Midspan 24-ports 66891 User Manual

Product codes
66891
Page of 4
This technology has two advantages.
◗ 
It provides a more practical, economical supply for the connected equipment.
The supply to the whole installation can be protected centrally directly from 
the distribution panel.
Power over Ethernet can be installed in two ways.
◗ 
Using a PoE midspan system
◗ 
Using PoE Ethernet switches
Both solutions comply with IEEE 802.3af which ensures
interoperability between 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.
High availability
supply for
network applications
is easy
with Power over Ethernet
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,
Ethernet PoE switch solution
PoE midspan solution
Network rack in a data/communications centre
Network rack in a data/communications centre
Enterprise IT networks are
undergoing major changes.
One of these developments is
Voice over IP (VoIP) 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.
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.
UPS
Ethernet cable
powered by PoE
(category 5 cable)
Ethernet cable
unpowered
(category 5 cable)
Connection to the trunk
AC supply (optical fibre, etc)
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
Midspan
UPS
Switches