Avaya 555-245-600 사용자 설명서

The 1152A1 can be collocated with the data equipment or closer to the endpoints. In all cases, 
IEEE 802.3af capable IP devices must connect directly to this PDU. The PDU cannot power any 
device if a hub or a switch is between itself and the endpoint because it will not sense the 
resistive signature needed to authorize the release of power.

The Avaya IP Telephone has four different power modes:

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Ethernet spare pairs (4/5 and 7/8)

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Ethernet signaling pairs (1/2 and 3/6)

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Traditional telephony (7/8)

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(4630 model only) External transformer with a barrel connector

The 1152A1 power unit powers only through pairs 4/5 (+) and 7/8 (-).

This brick type transformer provides 5 watts of power to the telephone. The Avaya telephone 
treats this brick as the primary power source, and will not accept power from the Ethernet cable 
if the barrel is seated into the telephone, with or without the brick attached to AC power.

Adequate power from the 1152A1 is supplied to the generation 2 telephones over the Ethernet 
cable. Category 5 or better cable is required for Fast Ethernet to function from the IP Telephone.

Generation 1 telephones can receive power from the 1152A1 through an in-line adapter. This 
adapter provides the resistive signature so that the 1152A1 allows power to flow to the 
telephone. The generation-2 telephone does not need an adapter, but it might mistakenly be 
used on a generation-2 telephone. Both generation phones work as designed through all tests 
performed in Avaya labs.

The 1152A1 unit can also power Avaya’s Wireless Access Point systems. The AP1, AP2, or 
AP3 act as a bridge between the wireless and the wired LAN. This system requires a 5-volt 
power supply that can be replaced by a splitter, which fits in the same cavity as the original 
power converter and allows power over the Ethernet, eliminating the need to find a power 
source close to the unit.