Power specifications

Last Updated : Aug 28, 2026 |
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You can power Avaya J100 Series IP Phones using Power over Ethernet (PoE) or an Avaya 5V DC power adapter. While using a power adapter, disable PoE on the Ethernet connection. You must purchase the power adapter separately.
Avaya J100 Series IP Phones are ENERGY STAR® compliant.
The following table provides the LLDP power measurement of the phones, adjuncts, and peripherals.
Phone model
Avaya standard power measurements (in Watts)
Energy Star (in Watts)
Conservation
Typical
Maximum
Standby
J129
1.26
1.31
1.64
1.04
J139
1.40
1.67
2.24
1.55
J159
1.75
2.32
3.03
2.04
J169
1.72
1.84
2.34
1.85
J179
1.74
2.10
2.71
1.85
J189
2.32
2.91
3.93
1.92
JBM24
0.19
0.69
1.35
NA
JEM24
1.70
1.90
2.00
NA
Wi-Fi/BT module
0.90
0.90
0.90
NA
USB device (PoE slide switch in L position)
0.5
0.5
0.5
NA
USB device (PoE slide switch in H position)
1.25
1.25
1.25
NA
The power requirements of the phone vary depending on the connected peripherals. The following table provides the correlation between the connected peripherals and power requirements.
Phone model
PoE Class
J129
  • IEEE 802.3af PoE Class 1 device.
J139
  • IEEE 802.3af PoE, Class 1 device.
J159
  • IEEE 802.3af PoE Class 1, PoE Slide switch in L position, without a wireless module and USB device with parameter USB power value set to either 0, 1 or 3.
  • IEEE 802.3af PoE Class 2, PoE Slide switch in H position, with a wireless module, USB device, or a wireless module together with USB device.
J169
  • IEEE 802.3af PoE Class 1 without a button module.
  • IEEE 802.3af PoE Class 2 with a button module.
J179
  • IEEE 802.3af PoE Class 1 without a wireless module or a button module.
  • IEEE 802.3af PoE Class 2 for one or more button modules, a wireless module, or a wireless module together with one or more button modules.
Note:
Use Avaya 5V DC power adapter if you simultaneously connect a wireless module along with one or more button modules of any model.
J189
  • IEEE 802.3af PoE Class 2, PoE slide switch in the L position with a wireless module.
  • IEEE 802.3af PoE Class 3, PoE slide switch in the H position, one JEM24 module supported with USB Type A and Type C port shared power limited to 900mA.Two JEM24 with USB Type A and Type C port shared power limited to 500mA.