General Cabling Guidance; Connections Overview - Raymarine p70 Installation & Operation Instructions

4.1 General cabling guidance

Cable types and length
It is important to use cables of the appropriate type
and length
• Unless otherwise stated use only standard cables
of the correct type, supplied by Raymarine.
• Ensure that any non-Raymarine cables are of the
correct quality and gauge. For example, longer
power cable runs may require larger wire gauges
to minimize voltage drop along the run.
Routing cables
Cables must be routed correctly, to maximize
performance and prolong cable life.
• Do NOT bend cables excessively. Wherever
possible, ensure a minimum bend diameter of 200
mm (8 in) / minimum bend radius of 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 cables through bilges or
doorways, or close to moving or hot objects.
• Secure cables in place using tie-wraps or lacing
twine. Coil any extra cable and tie it out of the way.
• Where a cable passes through an exposed
bulkhead or deckhead, 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 cables
Do NOT use cords or ropes, attached
to cable connectors, to pull cables
through restricted apertures (e.g. as in
bulkheads), as this could cause damage
to cables.
Strain relief
Ensure adequate strain relief is provided. Protect
connectors from strain and ensure they will not pull
out under extreme sea conditions.
Cable shielding
Ensure that all data cables are properly shielded
that the cable shielding is intact (e.g. hasn't been
scraped off by being squeezed through a tight area).
22
100 mm (4 in)

4.2 Connections overview

Use the following information to help you identify the
connections on your product.
Connector Qty Connects to:
2 1.
2.
3.
Connecting SeaTalk
1. Rotate the locking collar on the unit to the
unlocked position.
2. Ensure the cable's connector is correctly oriented.
3. Fully insert the cable connector.
4. Rotate locking collar clockwise (2 clicks) until it is
in the locked position.
SeaTalk product loading
ng®
The number of products that can be connected
to a SeaTalk backbone depends on the power
ng
consumption of each product and the physical overall
length of the backbone.
SeaTalk products have a Load Equivalency
ng
Number (LEN), which indicates the product's power
consumption. The LEN for each product can be
found in the product's Technical Specification.
Suitable cables
SeaTalk 1. SeaTalk
ng
backbone spur cables
NMEA 2000 2. SeaTalk
backbone DeviceNet
adaptor
SeaTalk
cable
backbone
(A06045)
3. SeaTalk to
SeaTalk
adaptor
cable
(A06073)
cables
ng®
p70 / p70R
ng
to
ng
ng
D12615-2