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Chapter 7: Power over Ethernet Setup

One of the NetWall 6000 Series expansion slot options is a module that can provide 8 x RJ45 Gigabit Ethernet port connectivity with each port also capable of supplying Power over Ethernet (PoE) at the same time. Each PoE capable port can provide up to 30 Watts of DC power to an external device over a suitable Ethernet cable (Cat 5a or better) up to a distance of 100 meters. An uninstalled PoE-capable 6000 Series expansion module is shown below.

NetWall 6000 Series 8 x RJ45 Gigabit with PoE/PoE+ Expansion Module

Figure 7.1. NetWall 6000 Series 8 x RJ45 Gigabit with PoE/PoE+ Expansion Module

The above image shows a small LED at the center-bottom that will illuminate if the maximum PoE load is exceeded. The LEDs on the left and right sides will illuminate if the port indicated by the number next to the LED is actively supplying PoE power.

The expansion module comes with a separate PSU that provides the PoE power to the module by plugging into a special PoE power port on the back of the NetWall 6000 Series. This PSU is shown below.

NetWall 6000 Series PoE Power Supply

Figure 7.2. NetWall 6000 Series PoE Power Supply

Use the following steps when setting up PoE on the NetWall 6000 Series appliance:

  1. Ensure the PoE enabled expansion module is correctly installed into the second expansion slot on the NetWall 6000 Series (located on the far right-hand side). Module installation is discussed generally in Chapter 6, Interface Expansion Modules.

  2. Ensure that power is applied to the NetWall 6000 Series appliance and the module's interfaces appear in cOS Core's interface list. All interface ports on the expansion module will have the PoE feature enabled automatically and this does not need to be configured in cOS Core.

  3. Connect up the PoE PSU by plugging its power cable into an external power socket and then connect the PSU's other cable to the PoE power inlet at the rear of the NetWall 6000 Series appliance. This is shown below.

NetWall 6000 Series PoE Power Supply Connection

Figure 7.3. NetWall 6000 Series PoE Power Supply Connection

  1. Using a suitable Ethernet cable (Cat 5e or better), connect an external device to the first Ethernet interface port (top-left) on the expansion module. The maximum load drawn from a single interface port should never be more than 30 Watts.

  2. Attach additional external devices in a similar way using sequential port numbers. Connections can be a mix of 15 Watts (802.3af) and the maximum of 30 Watts (802.3at Type 2).

    The total loading across all Ethernet ports should never exceed 120 Watts and a maximum load distribution across the ports should ideally follow one of the patterns shown in the table below.

    Port 1 Port 2 Port 3 Port 4 Port 5 Port 6 Port 7 Port 8
    30W 30W 30W 30W 0 0 0 0
    30W 30W 30W 15W 15W 0 0 0
    30W 30W 15W 15W 15W 15W 0 0
    30W 15W 15W 15W 15W 15W 15W 0
    15W 15W 15W 15W 15W 15W 15W 15W

  3. If the maximum loading is exceeded, the load warning LED on the module will light up. If this happens, remove PoE connections until the LED is no longer lit.

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