Hacousto Holland bv
Industrieweg 87
2651BC Berkel & Rodenrijs
IMPACT reference system manual (Typical )
Author:
DD
Design revision:
2.0
DIN rail mounted L-Net devices, in order to provide sufficient access level protection and compliance with
requirements of EN54-16, are required to be housed:
a)
inside the system rack (central location), according to specifications requirement in chapter “Rack
frame”;
b)
inside additional enclosure, external to the system rack (remote location).
This requirement applies to:
-
4E-FSC (multimode optical fiber interface)
-
4E-GPIO (input/output expander)
-
4E-SW6 (6-channel switching zone expander with EOL
surveillance)
The external enclosure must meet the following minimum requirements
in order to secure proper system operation and maintain compliance
with EN54-16:
-
The enclosure must be of sturdy steel construction;
-
The enclosure must provide means of fixing it to the base
structure e.g. mounting holes for wall plugs, anchors or bolts.
-
The enclosure must be fixed to a firm base structure, preferably
directly to the construction of the building, e.g. a concrete wall
or ceiling, steel frame or pillar or other solid structures like steel
cable trays or roof supporting framework;
-
Top, side, and rear walls made of solid steel;
o
Optionally, front wall / door may be provided with a
viewing window made of solid glass or acrylic /
polycarbonate;
-
DIN rail firmly fixed to the inside of the enclosure, providing
sufficient space for DIN rail mounted devices;
-
IP30;
-
All doors must be able to be closed and equipped with access
protection for access level 3 (e.g. key lock or special tool):
o
If a key is used, it must be removable to secure doors
when locked.
-
Opening for field wiring, equipped with cable glands;
-
If multiple enclosures are used in the same location, they may
be installed directly adjacent to each other.
Recommended products meeting the requirements for external
enclosure:
-
Rittal Terminal Box KL series, model KL 1537.510
-
Rittal Small enclosure KX / Bus enclosure KX, model KX 1612.000
or equivalent.
Examples of external enclosure
suitable for DIN-rail mounted
system devices in remote
locations.
