2.6 REMOTE DISPLAY UNIT CABLING
24v DC Input supply
The Mk7 Remote Display Unit should be powered from a floating 24v DC supply (+30% -25%) rated at
1.5 Amp continuous rated, with 2.5Amp surge for 1.5ms.
The external supply should be connected via a Hirschmann GM216 NJ power connector.
PLEASE NOTE: - The Remote Display Unit may not operate correctly if the external 24v power
supply is referenced to the vessel earth. There is also a risk the input protection circuitry in the
unit could be damaged.
Cable type 2 Cores + Earth, CSA 1.5mm
2
, fine stranded bare copper wires, braided screen, low smoke
halogen free sheath, outside diameter 10mm (max), operating temperature 0ºC + 80ºC.
Cables should be segregated from high voltage cables and follow good installation practice
Suggested cables
Lapp Kabel 1.5mm2 Ölflex Classic 110CH - 10035068
Prysmian LSM-HF 3 core 1.5mm2
Helkama LKAM-HF 3 core 1.5mm2
The 24v DC connection to the Remote Display Unit may be made using the pre-terminated 5m cable, 1-
43682-K296. The cable may be cut to length or extended depending on the distance between the Remote
Display Unit and the 24v DC power source.
Alternatively, a single length of cable may be used between the 24v power supply and the Remote
Display Unit. Using this method, the cable must be terminated in using a Hirschmann GM216 NJ power
connector, 1-27400-K304.
Refer Figure 18 for 24vDC Socket wiring drawing.
Figure 18 24v DC Socket Wiring Drawing
Refer Figure 20 for connection location.
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