Avaya CMC1 Installation Manual page 95

Figure 43: Connecting telephones and other end devices to the 1152A1 PDU
Ethernet
Switch/Hub
For Data-In ports connect the Ethernet cable leading from the Ethernet Switch/Hub to the Data port. For
Data & Power Out ports connect the Ethernet cable leading to the telephone or other end device to the
corresponding Data & Power port.
NOTE:
Be certain to connect correspondingly numbered Data and Data & Power ports.
Connecting cables to telephones and other end devices
The 1152A1 PDU contains line-sensing capabilities that enable it to send power only to end devices
designed to receive power from the LAN. These end devices, termed Power over LAN Enabled, receive
power once they are connected to the 1152A1 PDU.
To safeguard devices that are not enabled, the 1152A1 PDU detects devices that are not enabled so does
not send power. Note that data continues to flow via the Ethernet cable regardless of the status of the end
device.
End devices that are not enabled to receive power directly may receive power and data through an
external splitter. The external splitter separates the power and data prior to connection to the end device
(see Figure 44).
Figure 44: Connecting an IP telephone with an external splitter
Connection to
Power over LAN Hub
Installation, Upgrades and Additions for Avaya CMC1 Media Gateways
June 2004
1152A1 Power Distribution Unit
RJ-45 IN
data
1 1
data
2 2
data
3 3
spare
4 4
spare
5 5
data
6 6
spare
7 7
spare
8 8
RJ-45
Female Socket
Power
Installing and Cabling the Cabinets
Install and Wire Telephone Power Supplies
RJ-45 OUT
data
1
data
2
data
3
DC +
4
DC +
5
data
6
DC -
7
DC -
8
RJ-45
Male Connector
Data
DC Power
Connector
End Device
1
2
3
4
5
6
7
8
IP
Phone
95