Raymarine E70098 - 9.4 Power connection - EV-1

4.R
otatethelockingcollarclockwise(2clicks)untilitisinthelockedposition.
9.4Powerconnection—EV-1
ThepowerfortheEV-1unitisprovidedbytheSeaTalkng®backbone.
•TheEV-1unitmustbeconnectedtoaspurconnectionontheSeaTalkng®backbone.
•SeaTalkng®requiresONE12Vdcpowersource.Thiscanbeprovidedby:
–Abattery
–AnEvolutionACU–200,ACU-300orACU-400providingpowertothesameSea Talkng®
backbone.
Ifyourvesselhasa24Vsupplyasuitablevoltageconvertorisrequired.
Warning:Positivegroundsystems
Donotconnectthisunittoasystemwhichhaspositivegrounding.
9 .5SeaTalkng®powerconnectionpoint
The12VdcpowersupplyisconnectedtoaspurconnectionontheSeaTalkng®backbone.
Largesystems
Ifthebackbonelengthisgreaterthan60m(197ft),thepowerconnectionpointshouldbeconnected
atapointthatcreatesabalancedcurrentdrawfromeachsideofthebackbone.TheNMEA2000
LoadEquivalencyNumber(LEN)isusedtodeterminethepowerconnectionpointforthebackbone.
Inthee xampleabovethebackbonehasanoverallLENof10,sotheoptimumconnectionpointwould
betohave5LENeithersideoftheconnectionpoint.
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