Power specifications

Last Updated : Apr 17, 2026 |
Prolog information
Metadata
Keywords:
Avaya J100 Series IP Phones can be powered using Power over Ethernet (PoE) or a 5V DC adapter. You must purchase the power adapter separately.
Avaya J100 Series IP Phones are ENERGY STAR® compliant.
Important:
  • Avaya J129 IP Phone, Avaya J159 IP Phone, Avaya J179 IP Phone, and Avaya J189 IP Phone support the wireless module.
  • Avaya J139 IP Phone is a Class 1 device and does not support peripherals.
  • Avaya J159 IP Phone and Avaya J189 IP Phone support an USB device.
  • Avaya J169 IP Phone supports three JBM24 Button Modules or two Avaya J100 Expansion Modules on PoE. For additional button modules, use 5V DC power adapter.
  • Avaya J179 IP Phone supports two JBM24 Button Modules or one Avaya J100 Expansion Module on PoE. For additional button modules, use 5V DC power adapter.
    Note:
    The simultaneous connection of JBM24 Button Module and Avaya J100 Expansion Module is not supported.
  • Avaya J189 IP Phone supports two Avaya J100 Expansion Modules, set the sideswitch to H on PoE or use a 5V adapter.
    Note:
    The connection of JBM24 Button Module is not supported.
  • If you are using a power adapter, disable PoE on the Ethernet connection.
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 5V DC 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 L position with a wireless module.
  • IEEE 802.3af PoE Class 3, PoE slide switch in 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.