14
14.2 Installation and Connection
191Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
14.2.3 Earthing, Shielding and Connecting Peripheral Devices
The SIMEAS R-PMU is an electronic device with a very high interference immunity.
In order to ensure EMC properties and a safe operation of the SIMEAS R-PMU, the following
measures must be observed:
Install cable shields and clamps as shown in Figure 14-1.
Place the cable shield on both sides (at the beginning and end of the cable).
Earthing a cabinet:
The earth conductor of a SIMEAS R-PMU cabinet must be mounted at the appropriate
earthing point at the cabinet's base and led to the central earthing point using the shortest
path.
This conductor must have a minimum wire gauge of 16 mm
2
.
Earthing central units:
The earth conductor must be fastened to the earthing points at the rear panel and led to the
central earthing point or to the metal frame of the cabinet using the shortest path.
This conductor must have a minimum wire gauge of 16 mm
2
.
The 19-inch device features two earthing points at the rear panel (on the left and on the
right). A separate earth conductor must be connected to each of the earthing points.
Only peripheral devices (e. g., modems) with a CE mark can be connected to the SIMEAS R-
PMU.
Note
These measures apply to all connecting cables to the SIMEAS R-PMU, even those that are only
connected during commissioning.
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