Recording Control Unit: Ndv-1800 / Ndv-1850 - JRC JCY-1800 Installation Manual

3. Mechanical Installation
JCY-1800/1850 VDR/S-VDR Installation Guide

3.3. Recording Control Unit: NDV-1800 / NDV-1850

3.3.1. Selecting the Location
It should be recommended that the location for mounting the Recording Control Unit (NDV-1800/1850)
be selected to meet the following conditions.
It should be recommended that the Recording Control Unit to be mounted in the wheelhouse.
The international standards require the Operation Panel Unit (NCG-169) to be mounted in the
wheelhouse.
1) The length of the cable between the Recording Control Unit and the Protective Capsule
(NDH-316/317) should not exceed 30m.
2) The lengths of cables connected to the units installed in the wheelhouse should be as short as
possible.
3) The Recording Control Unit should be protected from bad weathers, and the temperature
around it should be kept at a comfortable level.
4) The Recording Control Unit should be free from excessive vibrations.
5) The Recording Control Unit should be within a compass safety distance of 1.2m.
6) The Recording Control Unit should be distant enough from electric apparatuses such as a
RADAR and radio communication devices that emit excessive electromagnetic field.
7) The maintenance operations such as backing up the data and replacing the battery of the
power supply unit should be easy enough.
3.3.2. Fastening the Recording Control Unit
3.3.2.1. Connecting Cables
1) Wiring hole:
The Recording Control Unit is connected with cables from the Protective Capsule, the Operation
Panel Unit, the Radar video, the Microphone Units, the Sensor signal (IEC61162-1/2) and so on.
The Recording Control Unit therefore has holes in its bottom for these cables to come through.
2) Grounding terminal:
To ensure continuous and stable operations, the Recording Control Unit needs to be grounded to
the ship's hull
3.3.2.2. Vicinity Clearance of the Recording Control Unit
The Recording Control Unit has a front door. To allow the door to open easily at anytime, the area
within 0.43m of the front door should be kept obstacle-free.
3.3.2.3. Fastening the Recording Control Unit
Fasten the Recording Control Unit onto a bulkhead with four M8 steel bolts (φ10mm). The
bulkhead has to sustain the weight of 23kg of the Recording Control Unit.
DOC No. 7ZPJD0387C
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