
eGauge Systems Tutorial 2: HomePlug information and pairing tutorial
2.2.3 Pairing the eGauge2 or EG301x HomePlug communications through the web interface
Required information
To change the HomePlug encryption key you must know the Device-ID and MAC address for each device
(HomePlug and/or eGauge) you wish to put on the same HomePlug network. The MAC address printed on
the back of the eGauge will differ by the last bit when viewed from HomePlug settings, as the HomePlug and
Ethernet protocols have different MAC addresses.
The Device-ID is a unique 16 character long string unique to each HomePlug device in the format XXXX-
XXXX-XXXX-XXXX where X is an uppercase letter. Different manufacturers may identify this value by
a different name; Netgear adapters say PWD, IOGear DEK, and Actiontec Device ID or DEK. The MAC
address is a 12 character hexadecimal (valid characters are 0 to 9 and A to F) string unique to every network
device. It may be in the format XX:XX:XX:XX:XX:XX, or just XXXXXXXXXXXX (Where X is 0 to 9, or
A to F). Be sure to match Device-IDs to their corresponding MAC addresses in the following section.
Figure 2.6: Actiontec PWR-500 MAC and DEK
(EG301x)
Figure 2.7: Actiontec HPE100T MAC and DEK
(eGauge2)
Figure 2.8: Reverse side of an eGauge, MAC and DEK
Note that the HomePlug adapter will likely have to be unplugged to view this information, and the eGauge
may need to be turned off or removed from the panel if mounted. The MAC address for the eGauge is also
available on the installation sheet that shipped with the device, and under View → Device Status on the
eGauge when logged in.
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