Specifications

43. IP Hardphone Power Options
IP Office Matrix - Release 8.1 (2) Page 403
In order to prepare for changes in future EMC requirements, Avaya is announcing, effective July 2, 2007,
the 1151D1 and 1151D2 Terminal Power Units for IP Phones.
These new Power units will be for IP phones only and will be replacing the current 1151C1 and 1151C2
Power Unit versions on IP phones. Although we are announcing the new 1151D1 and 1151D2 units, the
July ASD will still configure 1151C units. The 1151Ds will be available in ASD in August.
Note: The new 1151C1/C2 & 1151D1/D2 products will include a CAT5 cable. However, the old 1151B1
and 1151B2 included a standard North American power cord which is not included anymore (must be
ordered separately or obtained elsewhere).
<--- 1151D2
IP Office IP Hard Phone Power Options
<--- IP Phone Single Port POE Injector
Local Power Options
<--- 1151D1
<--- 1151C2
<--- Local Power Brick Transformer
<--- 1151C1
With Centralized Power, also known as Power over Ethernet (PoE), both power and data are carried over one CAT
5 Ethernet cable. Deploying the IP Telephones utilizing PoE eliminates the need for a local power supply, AC
adapter and cables; thereby allowing power to be provided from the wiring closet/switch room where it can be
easily connected to a UPS system.
The standards body governing PoE, Institute of Electrical and Electronic Engineers (IEEE) has ratified the standard
which defines the specifications to deliver power over standard Ethernet cables. The PoE standard has been
approved by the IEEE Standards Board on June 12, 2003 as “IEEE Std. 802.3af-2003”.
The key technical characteristics of the IEEE 802.3af-2003 standard for PoE are cited in the bullets below:
• Power Sourcing Equipment (PSE) Output Voltage: 44 Vdc to 57 Vdc
• Power Sourcing Equipment (PSE) Output Current: 350 mA max
• Power Sourcing Equipment (PSE) Power: 15.4 W max
• Powered Device (PD) maximum power draw allowed is 12.95 W
• Powered Device (PD) will be ready to accept power from either set of pairs:
• Spare Pairs (pins 4/5 and 7/8)
• Signal / Data Pairs (pins 1/2 and 3/6)
• Signature detection method will be the “Resistor” concept
<--- Avaya Ethernet Routing Switch 2500 Series
<--- Power Over Ethernet (POE)
<--- Avaya Ethernet Routing Switch 4500 Series