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eGauge Systems Tutorial 2: HomePlug information and pairing tutorial

Figure 2.3: How the eGauge connects

Voltage Limitations

The Actiontec HomePlug adapters sold by eGauge Systems LLC are rated for voltages up to 240Vac (50

or 60Hz). Sites operating at higher voltages require a small transformer to step down the voltage to a range

suitable for the HomePlug adapter. The transformer must be small enough so as not to ﬁlter out the HomePlug

signal.

For 3-phase/277V (480V-phase-to-phase) installations, eGauge Systems LLC stocks a transformer kit, which

will step down 277Vac down to 120Vac, suitable for powering the HomePlug adapter. The transformer is

rated for 25VA of power, suitable for powering another one or two auxiliary devices, provided total power

consumed does not exceed 25VA.

Please see http://www.egauge.net/docs/277v-hpt-manual.pdf for more information on the

transformer kit.

Multiple HomePlugs on a Network

A single power line location can support up to 16 HomePlug devices, so you can have many eGauges com-

municated via a single HomePlug Ethernet adapter. Communication may be affected above that limit.

Issues arise if there are multiple HomePlug Ethernet adapters connected to the same network. For example,

if eGauge01 and HomePlug01 are connected to the same network as eGauge02 and HomePlug02, a routing

loop will occur and is very likely to cause the network to crash.

The eGauge model EG30xx has built-in Ethernet and may be used to circumvent the need for a HomePlug adapter.

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