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Installing and wiring telephone power supplies
120 Installing and Connecting the MDF and Telephones
● Do not overload wall outlets and extension cords as this can result in the risk of line or
electric shock.
● Disconnect the cords on this product and refer servicing to qualified service personnel
under the following conditions:
● If the power supply cord or plug is damaged or frayed.
● If liquid has been spilled into it.
● If it has been exposed to rain or water.
● If it was dropped or the housing has been damaged.
● If it exhibits a distinct change in performance.
● If it does not operate normally when following the operating instructions.
Using the 1152A1 Power Distribution Unit
The 1152A1 PDU is used to power the 46xx series of IP telephones in addition to providing 10/
100 megabits per second Ethernet connection.
Generation 1 Avaya IP telephones can receive power from the 1152A1 via an in-line adapter.
This adapter provides the resistive signature so that the 1152A1 allows power to flow to the
telephone. The generation 2 telephones do not need an adapter.
The 1152A1 PDU has 24, 10/100 Base-T ports, each can supply up to 16.8 watts using the
internal power supply and operates on a 100-240 VAC, 60/50 hertz power source.
The 1152A1 PDU is 1U high and fits in most standard 19-inch (48-centimeter) racks. It also can
be mounted on a shelf. See the user’s guide that comes with the unit for complete installation
instructions.
Perform these tasks in order:
● Connecting the 1152A1 Power Distribution Unit on page 120
● Connecting the cables on page 121
Connecting the 1152A1 Power Distribution Unit
!
CAUTION:
CAUTION: The 1152A1 PDU has no ON/OFF switch. To connect or disconnect power to the
1152A1 PDU, simply insert or remove the power cable from the AC power
receptacle on the rear of the 1152A1 PDU.