What are the minimum power requirements to power an EGX?

Issue
What does the EGX gateway require for minimum power?

Product Line
EGX100
EGX200
EGX300
EGX400
EGX150

Environment
Control power

Resolution
A 24VDC, 8 Watt (minimum) power supply (plus or minus 10% regulation) is required to power EGX devices.

Additionally, the EGX100, EGX300, and EGX150 do support Power-over-Ethernet (PoE).
However, as per FA209559, do not connect both PoE and external 24VDC power supply or it may result in intermittent communication.

Note: If polarity is reversed on the 24VDC power supply (+/-), the device will not be damaged.  It will continue to function normally once the power supply is returned to the instructed configuration.