YOKOGAWA CENTUM CS, Technical Information

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2. Transportation, Storage and Installation
2-48
TI 33J01J10-01EN Mar. 29, 2019-00
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Junction Box for N-IO System
This section describes examples of the maximum number of N-IO system equipment (except for
equipment for RIO System Upgrade) installed in general-purpose junction boxes.
The following shows the common specifications to the examples of junction boxes for N-IO
system that are explained later.
Junction Box Specifications
The following junction box is assumed to be used.
Table Junction Box Dimensions
W D H
800 mm 300 mm 1000 mm
Product examples
Table Product examples
Manufacturer Model
Junction Box Rittal 1180 series
Notes
The following shows the common notes to the examples.
• The ventilation for each system shall not be blocked.
• The mounting plate for mounting the IOBP and IOBP_IS shall be made of metal, regardless
of whether DIN rail or panel mounting.
• A DIN rail shall be made of metal.
• For mounting restrictions other than the above, refer to the General Specifications (GS).
Conventions
The following shows the common abbreviations used and their explanations.
Abbreviations Explanations
NIU Node Interface Unit or Base Plate for Node Interface Unit
IOBP Base Plate
IOBP_IS Base Plate Intrinsic Safety explosion protection
Unit Unit of 19 inch rack. 1 Unit = 44.45 mm