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4.3Sea

Talkng®powersupply

PowerissuppliedtotheproductovertheSeaTalkng®backbone.

ASea Talkng®backbonerequiresonlyone12Vdcpowersupply,connectedtotheSeaTalkng®

backbone.Thiscanbeprovidedbyoneofthefollowing:

•abattery

(1)

,viathedistributionpanel;

•anAutopilotControlUnit(ACU)

(2)

;

•anSPXcoursecomputer

(2)

;

•for24Vvesselsa5amp,regulated,continuous24Vdcto12Vdcconverterisrequired.

Note:

•(1)Thebatteryusedforstartingthevessel’ sengine(s)shouldNOTbeusedtopowerthe

SeaTalkng®backbone,asthiscancausesuddenvoltagedropswhentheenginesarestarted.

•(2)TheACU-100,ACU-150orSPX-5productscannotbeusedtopowertheSeaTalkng®

backbone.

Sea Talkng®powerconnectionpoint

Smallsystems

Ifthebackbonelengthis60m(197ft)orless,thepowerconnectionpointmaybeconnectedat

anypointinthebackbone.

Largesystems

Ifthebackbonelengthisgreaterthan60m(197ft),thepowerconnectionpointshouldbeconnected

atapointthatcreatesabalancedcurrentdrawfromeachsideofthebackbone.TheLoad

EquivalencyNumber(LEN)isusedtodeterminethepowerconnectionpointforthesystem.

Inthee xampleabovethesystemhasanoverallLENof10,sotheoptimumconnectionpointwould

betohave5LENeithersideoftheconnectionpoint.

Raymarine AR200 User Manual

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