Furuno FAR-3220Z, Руководство по установке

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2-1
2. WIRING
2.1 Cabling Considerations
• To lessen the chance of picking up electrical interference, avoid where possible
routing the antenna cable (power and LAN) near other onboard electrical equipment
(radars, TX radio antennas, etc.). Also avoid running the cable in parallel with power
cables. When crossing with other cable, the angle must be 90° to minimize the mag-
netic field coupling.
• The antenna cable between the antenna and processor units is available in lengths
of 15 m and 30 m. Whatever length is used, it must be unbroken; namely, no splicing
allowed. The antenna cable should be as short as possible to minimize attenuation
of the signal.
• The radar must be connected to an emergency power source, as required by SO-
LAS II-1.
• The length of the USB cable must be within 5 m to prevent equipment trouble.
• The length of LAN cables must be within 50 m.
• Use a Cat5e or Cat6 LAN cable for the network if available locally.
• Make sure that the ground wires are connected between the ground terminals on
each equipment and the ship’s earth.
• Pass the cables through the specified clamp or locking wire saddle.