NT24k Compact Series - Hardware Manual (Revised 06-02-2015)
87
Grounding the Unit
•
Input power supply should be rated to at least 360 Watts of continuous power. Failure to use a properly rated
power supply may result in any or all of the following:
•
Power Supply damage
•
NT24k unit damage or sporadic operation
•
PoE ports powering down due to under voltage condition.
•
The NT24k can be configured to fault when either of the two supplies goes below a minimum voltage threshold.
2.4
Grounding the Unit
The grounding of any control system is an integral part of the design. The optimum noise immunity and emissions are
obtained when the NT24k chassis is connected to earth ground via a 12-14 gauge wire for the POE models and 14-18
gauge drain wire for all other units. The NT24k units provide a ground lug (see illustration) that is used to provide a safe
grounding path of the device.
Note:
The NT24k power input (V-) pins are isolated from chassis ground. Do not attempt to ground the switch to earth
ground via the power input pins (V-).
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