The following image illustrates the connection jacks that are present on the back panel of Avaya J139 IP Phone.
The image schematically describes which device to connect to which jack.
|
No.
|
Name
|
Description
|
|
1
|
5V DC Jack
|
To connect the power supply.
|
|
2
|
Network port
|
To connect the Ethernet cable.
|
|
3
|
PC port
|
To connect the computer.
|
|
4
|
Headset Jack
|
To connect the headset.
|
|
5
|
Handset Jack
|
To connect the handset.
|