2: Hardware Installation
24V or 48V DC from the Terminal Block Adapter
In a 1U rack mount bracket installation, it is sometimes preferable to use 24 or 48V DC power through directly secured
wires as opposed to the DC power adapter. The Terminal Block Adapter fastens to the back of the EtherNID to provide
such an installation.
To ground the Terminal Block Adapter, use a small wrench to tighten the bolt around the grounding screw, located at the
bottom right on the back of the Terminal Block Adapter, to secure the grounding lug.
48V DC via discrete power cord
It is possible to power units with a custom built 24V or 48V DC power cable. When powered in this manner, the unit
must be installed horizontally to meet all applicable safety regulations. Therefore, supported mounting options are
desktop mounting or 1 or 2 unit rack mounting. Wall mounting is not allowed.
All models will have an isolated Return A and Return B.
The following diagram depicts the pin-out of the white +/- 24 or +/- 48V connector on the rear panel of the EtherNID and
MetroNID:
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