The Avaya Mid-Span Power Distribution Units. These are power devices, specially designed for IP-telephony, providing power over Ethernet (PoE) for up to 24 IP telephones or wireless LAN (WLAN) access points. The Mid Span Power units are designed to mount in a 19-inch rack with the data equipment or they can be stacked up to four units high using the optional rubber feet. It is 1U in height (1.75 inches) and has up to twenty-four RJ45 data input jacks on the bottom row and twenty-four data and power output RJ45 jacks.
The Mid-Span Power units provide a maximum of 200 Watts or a peak of 16.8 watts per port. The Mid Span Power units can also be called a PDU (Powered Data Unit) POE device. Power over the LAN will simplify the installation and support of IP telephones for our customers, enhancing acceptance of the technology. Data is unaffected if power is disrupted and if the device does not require power (an example is a laptop connected to the unit.) The Material Codes for the Mid-Span power units are:

• 700180433 - Mid Span 24 Port AC LAN Hub IP Phones
• 700253099 - Mid Span 24 Port AC LAN Hub IP Phones SNMP
• 700250525 - Mid Span 12 Port AC LAN Hub IP Phones
• 700253107 - Mid Span 12 Port AC LAN Hub IP Phones SNMP
• 700253115 - Mid Span 6 Port AC LAN Hub IP Phones
• 700253123 - Mid Span 6 Port AC LAN Hub IP Phones SNMP