Power over Ethernet Plus

Devices with Power over Ethernet Plus (PoE+) ports enable you to supply current to terminal devices such as IP phones via the twisted-pair cable. PoE+ ports support Power over Ethernet Plus in accordance with IEEE 802.3at.

The Power over Ethernet Plus function is activated both globally and on the PoE-capable ports on delivery.

Connecting too many PoE+ Powered Devices (PD) can overload your external PoE+ power supply. It may fail as a result. The Power over Ethernet Plus dialog assists you in managing the power supply and helps you to protect your external PoE+ power supply devices from overloading.

For the devices

Should the PDs connected require more PoE power than is provided, then the device deactivates PoE at designated ports. Initially, the device switches PoE off at the ports with the lowest PoE priority. If multiple ports have the same priority, the device first switches PoE off at the ports with the higher port number.

Power over Ethernet Plus - Global

Frame "Operation":

Tab. PoE+ Global - Operation

Parameter

Meaning

Value Range

Default Setting

Operation

Switching Power over Ethernet Plus operation on/off.

On, Off

On


Frame "Configuration":

Tab. PoE+ Global - Configuration

Parameter

Meaning

Value Range

Default Setting

Send Trap

Causes the device to send a trap in the following cases:

  • If a value exceeds/falls below the performance threshold.

  • If the PoE+ supply voltage is switched on/off at at least one port.

Yes, No

Yes

Threshold [%]
(performance threshold)

Performance threshold in percent of the nominal performance: When this value is exceeded/not achieved, the device will send a trap, provided that “Send Trap” is enabled.

0 - 99%

90%


Frame “System Power”:

Tab. PoE+ Global - System Power

Parameter

Meaning

Value Range

Default Setting

Budget [W]

Displays the power that the device nominally provides for the PoE+ ports.

0 - 248 W

248 W

Reserved [W]

Displays how much power the device provides at most to the connected PoE devices on the basis of their classification.

0 - 248 W

0 W

Delivered [W]

Displays how large the current power requirement is on the PoE+ ports.

0 - 248 W

-


The difference between the "configured power" and "reserved power" indicates how much power is still available to the free PoE+ ports.

"Global" table:

Tab. Power over Ethernet Plus - Global

Parameter

Meaning

Value Range

Default Setting

Module

  • For MACH102 media modlues M1-8TP-RJ45 PoE:
    Module = slot number of the PoE+ module

  • For MACH104-16TX-PoEP devices: Module = 1

1 - 2

-

Configured power budget [W]

Configure whichever power budget the device nominally provides for the module's PoE+ ports.

0 - 248 W

248 W

Maximum power budget [W]

Displays the power that the device nominally provides for the module's PoE+ ports.

0 - 248 W

248 W

Reserved power [W]

Displays how much power the device provides at most to the PoE devices connected to the module on the basis of their classification.

0 - 248 W

0 W

Delivered power [W]

Displays how large the current power requirement is on every PoE+ port of the module.

0 - 248 W

-

Threshold [%]

Specify the performance threshold in percent of the nominal performance; when the module exceeds or is below this value, the device will send a trap, provided that “Send Trap” is enabled.

0 - 99%

90%l

Trap notification

Causes the device to send a trap in the following cases:

  • If a value exceeds/falls below the performance threshold.

  • If the PoE+ supply voltage is switched on/off on at least one port.

On, Off

On


Note: For MACH 102 devices with media module M1-8TP-RJ45 PoE: We recommend distributing PoE+ power equally between the two port groups (ports 5 to 12 and ports 13 to 20).

Power over Ethernet Plus - Port

The table only shows ports that support PoE+.

Tab. Power over Ethernet Plus - Port

Parameter

Meaning

Value range

Default setting

Port

Module and port numbers of the PoE+ port to which this entry applies.

On the MACH104-16TX-PoEP device, the ports 1.5 to 1.20 support PoE+.

1,5 - 1,20 dB

-

PoE enable

Switching Power over Ethernet Plus operation on/off for this port.

An, Aus

An

Status

Displays the PoE+ status of the port.

suche, …

suche, …

Priority

Specify the PoE+ priority of the port.

niedrig, hoch, kritisch

niedrig

Class

Displays the class of the connected device:Class: Maximum output power

  • 0: 15.4 W

  • 1: 4.0 W

  • 2: 7.0 W

  • 3: 15.4 W

  • 4: 30.0 W

0 - 4

-

Consumption [W]

Displays the current power output on the particular port.

0,0 - 248,0 W

-

“Power limit [mW]”

Defines the maximum power in watts that the port outputs.

This function allows you to distribute the power budget available among the PoE ports as required.

For example, for a connected device without the “Power Class” function, the port reserves a fixed amount of 15.4 W (class 0) even if the device requires less power. The surplus power is not available to any other port.

By defining the power limit, you reduce the reserved power to the actual requirement of the connected device. The unused power is available to other ports.

If the exact power consumption of the connected device is unknown, see the value in the “Maximum Observed [W]” field. The power limit must be greater than the value in the “Maximum Observed [W]” field.

If the maximum observed power is greater than the set power limit, the device sees the power limit as invalid. In this case, the device uses the PoE class for the calculation.

0 - 30,0

0

“Maximum Observed [mW]”

Displays the maximum power in watts that the device has consumed so far.

You reset the value when you disable PoE on the port or terminate the connection to the connected device.

0 - 30,0

Name

Displays the name of the port, see Grundeinstellungen:Portkonfiguration

-

-


Buttons

Tab. Buttons (Forts.)

Button

Meaning

“Set”

Transfers the changes to the volatile memory (RAM) of the device. To permanently save the changes, open the Basic Settings:Load/Save dialog, select the location to save the configuration, and click “Save”.

“Reload”

Updates the fields with the values that are saved in the volatile memory (RAM) of the device.

“Help”

Opens the online help.