Raymarine Evolution EV-2 - Power Connection - EV-2; Seatalkng Power Connection Point; In-Line Fuse and Thermal Breaker Ratings; Power Connection

9
.3Powerconnection—EV-2
ThepowerfortheEV-2unitisprovidedbytheSea Talkng®backbone.
•TheEV-2unitmustbeconnectedtoaspurconnectionontheSeaTalkng®backbone.
•SeaTalkng®requiresONE12Vdcpowersource.Thiscanbeprovidedbyabattery.
Note:Ifyourvesselhasa24Vsupplyasuitablevoltageconvertorisrequired.
W
arning:Positivegroundsystems
Donotconnectthisunittoasystemwhichhaspositivegrounding.
9 .4SeaTalkng®powerconnectionpoint
The12VdcpowersupplyisconnectedtoaspurconnectionontheSeaTalkng®backbone.
Largesystems
Ifthebackbonelengthisgreaterthan60m(197ft),thepowerconnectionpointshouldbeconnected
atapointthatcreatesabalancedcurrentdrawfromeachsideofthebackbone.TheNMEA2000
LoadEquivalencyNumber(LEN)isusedtodeterminethepowerconnectionpointforthebackbone.
Inthee xampleabovethebackbonehasanoverallLENof10,sotheoptimumconnectionpointwould
betohave5LENeithersideoftheconnectionpoint.
Smallsystems
Ifthebackbonelengthis60m(197ft)orless,thepowerconnectionpointmaybeconnectedat
anypointinthebackbone.
In-linefuseandthermalbreakerratings
TheSeaTalkng®network’spowersupplyrequiresanin-linefuseorthermalbreakertobefitted.
•In-linefuserating:5A
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