User's Manual

Installation Guide 9
The Power Injector has no On/Off power switch. The Injector receives power and is ready for device connection and
operation as soon as AC power is applied. Refer to the Installation Guide shipped with the Power Injector for a
description of the device’s LED. The Power Injector can be installed free standing, on an even horizontal surface or
wall mounted using the Power Injector’s wall mounting key holes.
The following guidelines should be adhered to before cabling the Power Injector to an Ethernet source and an
EMG101 Gateway:
• Do not block or cover airflow to the Power Injector.
• Keep the Power Injector away from excessive heat, humidity, vibration and dust.
• The Power Injector isn’t a repeater, and does not amplify the Ethernet signal. For optimal performance,
ensure the Power Injector is placed as close as possible to the Ethernet switch. This allows the EMG101
Gateway to be deployed away from power drops.
• Ensure the cable length from the Ethernet source (host) to the Power Injector and EMG101 Gateway does
not exceed 100 meters (333 ft).
CAUTION To avoid problematic performance and restarts, disable PoE from a
wired controller port connected to an EMG101 Gateway if mid-span
power sourcing equipment (PSE) is used between the two, regardless
of the manufacturer.
CAUTION Ensure AC power is supplied to the Power Injector using an AC cable
with an appropriate ground connection approved for the country of
operation.
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