User`s guide

Chapter 11: Rackmount Ethernet Master
Installation Guidelines
Installation Guidelines
Maximum Ambient Temperature
Maximum Ambient Temperature (Tmra) for operation of the REM is 40ºC, measured
inside the enclosure. When the REM is installed in a closed or multi-rack assembly, the
internal operating ambient (inside the enclosure) may be greater than the room ambient
temperature. In this case, consideration must be given the difference in ambient
temperature between the room and inside the enclosure.
Minimum Ambient Temperature
Minimum Ambient Temperature for operation of the REM is 0ºC.
Reduced Air Flow – Mounted REM
The REM is designed for mounting only in a standard rack assembly between other rack
units. Allow 1/2" between the REM on the top and bottom of the rear enclosure to other
mounted units. The REM case is designed with a wider face mounting plate and a narrower
enclosure to automatically provide this space. Do not mount other types of rack
enclosures next to the REM where the rear enclosure may protrude beyond the plane of
the mounting faceplate and reduce the minimum clearance required by the REM.
Electrical Supply
The electrical current draw of the REM is rated at 0.5A at 100 VAC to 240 VAC. This
must be taken into consideration when connecting the unit to electrical power with other
rack units to avoid overloaded circuits. The amperage rating of all components
connected to one circuit must not exceed the rated amperage of the circuit.
Avoid connecting this unit to circuits with heating elements, electrical motors, fluorescent
lights, thermostats, etc. Electronic components should be on separate electrical circuits
(including the ground) of sufficient amperage.
Grounding
All units must be connected to a reliable earth ground. If a power strip is used, the
power strip must include a ground circuit.
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