Raymarine i60 Installation & Operation Instructions

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Raymarine i60 Installation & Operation Instructions Manual pdf 24 page image

In-line fuse and thermal breakerratingsThe SeaTalkng® network’s power supply requires anin-line fuse or thermal breaker to be fitted.In-line fuse rating Thermal breaker rating5A 3 A (if only connecting onedevice)Note: The suitable fuse rating for the thermalbreaker is dependent on the number of devices youare connecting. If in doubt consult an authorizedRaymarine dealer.SeaTalkng® system loadingThe maximum loading / LEN for a SeaTalkng®system depends on the length of the backbone.Loading type Backbone length Total LENUnbalanced 20 m (66 ft) 40Unbalanced 40 m (131 ft) 20Unbalanced 60 m (197 ft) 14Balanced 60 m (197 ft) orless100Balanced 80 m (262 ft) 84Balanced 100 m (328 ft) 60Balanced 120 m (394 ft) 50Balanced 140 m to 160 m(459 ft to 525 ft)40Balanced 180 m to 200 m(591 ft to 656 ft)32Power distribution — SeaTalkng®Recommendations and best practice.• Only use approved SeaTalkng® power cables. DoNOT use a power cable designed for, or suppliedwith, a different product.• See below for more information on implementationfor some common power distribution scenarios.Important: When planning and wiring, take intoconsideration other products in your system, someof which (e.g. sonar modules) may place largepower demand peaks on the vessel’s electricalsystem.Note: The information provided below is forguidance only, to help protect your product. Itcovers common vessel power arrangements, butdoes NOT cover every scenario. If you are unsurehow to provide the correct level of protection,please consult an authorized Raymarine dealer ora suitably qualified professional marine electrician.Implementation — direct connection to battery• SeaTalkng® power cables may be connecteddirectly to the vessel's battery, via a suitably ratedfuse or breaker.• You MUST fit a suitably rated fuse or breakerbetween the red wire and the battery’s positiveterminal.• Refer to the inline fuse ratings provided in theproduct’s documentation.• If you need to extend the length of the powercable, ensure you use suitably rated cable andthat sufficient power (12 V dc) is available at theSeaTalkng® backbone’s power connection.A Battery connection scenario A: suitable for a vessel witha common RF ground point. In this scenario, if yourproduct’s power cable is supplied with a separate drainwire then it should be connected to the vessel’s commonground point.B Battery connection scenario B: suitable for a vesselwithout a common grounding point. In this case, if yourproduct’s power cable is supplied with a separate drainwire then it should be connected directly to the battery’snegative terminal.Implementation — connection to distributionpanel• Alternatively, the SeaTalkng® power cable may beconnected to a suitable breaker or switch on thevessel's distribution panel or factory-fitted powerdistribution point.• The distribution point should be fed fromthe vessel’s primary power source by 8AWG(8.36mm2) cable.• Ideally, all equipment should be wired to individualsuitably-rated thermal breakers or fuses, withappropriate circuit protection. Where this is notpossible and more than 1 item of equipmentshares a breaker, use individual in-line fusesfor each power circuit to provide the necessaryprotection.• In all cases, observe the recommendedbreaker / fuse ratings provided in the product’sdocumentation.24