Raymarine p70 Installation And Operation Instructions Manual

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Raymarine p70 Installation And Operation Instructions Manual Manual pdf 24 page image

4.1 General cabling guidanceCable types and lengthIt is important to use cables of the appropriate type and length• Unless otherwise stated use only standard cables of thecorrect type, supplied by Raymarine.• Ensure that any non-Raymarine cables are of the correctquality and gauge. For example, longer power cable runs mayrequire larger wire gauges to minimize voltage drop along therun.Routing cablesCables must be routed correctly, to maximize performance andprolong cable life.• Do NOT bend cables excessively. Wherever possible, ensurea minimum bend diameter of 200 mm (8 in) / minimum bendradius of 100 mm (4 in).100 mm (4 in)200 mm (8 in)• Protect all cables from physical damage and exposure to heat.Use trunking or conduit where possible. Do NOT run cablesthrough bilges or doorways, or close to moving or hot objects.• Secure cables in place using tie-wraps or lacing twine. Coilany extra cable and tie it out of the way.• Where a cable passes through an exposed bulkhead ordeckhead, use a suitable watertight feed-through.• Do NOT run cables near to engines or fluorescent lights.Always route data cables as far away as possible from:• other equipment and cables,• high current carrying ac and dc power lines,• antennae.Caution: Pulling cablesDo NOT use cords or ropes, attached to cableconnectors, to pull cables through restrictedapertures (e.g. as in bulkheads), as this couldcause damage to cables.Strain reliefEnsure adequate strain relief is provided. Protect connectorsfrom strain and ensure they will not pull out under extreme seaconditions.Circuit isolationAppropriate circuit isolation is required for installations usingboth AC and DC current:• Always use isolating transformers or a separate power-inverterto run PC’s, processors, displays and other sensitive electronicinstruments or devices.• Always use an isolating transformer with Weather FAX audiocables.• Always use an isolated power supply when using a 3rd partyaudio amplifier.• Always use an RS232/NMEA converter with optical isolationon the signal lines.• Always make sure that PC’s or other sensitive electronicdevices have a dedicated power circuit.Cable shieldingEnsure that all data cables are properly shielded that thecable shielding is intact (e.g. hasn’t been scraped off by beingsqueezed through a tight area).4.2 Connections overviewCable connectors are on the rear of the product.D12056-1The unit has 2 x SeaTalkng connectors.Connecting SeaTalkng cables1. Rotate the locking collar on the back of the unit to theUNLOCKED position.2. Ensure the spur cable end connector is correctly oriented.3. Fully insert the cable connector.4. Rotate locking collar clockwise (2 clicks) until it snaps intothe LOCKED position.24 p70 / p70R