Power wiring (early sheet)

wheel / pinch = zoom · drag = pan
carputer_power 2014 RAM 1500 Carputer — Power · Fuse · Control Wiring (rev 3.10) LINE THICKNESS = wire gauge (THICKER = heavier wire / more current).   RED = positive (fused)   BLUE = negative (NEVER fused)   GREEN = the one chassis bond   PURPLE dashed = control / trigger (Cat5 / 22 AWG) Gauge→thickness:  2 AWG ▉   4 AWG ▆   6 AWG ▄   8 AWG ▃   10-14 AWG ▂   16-22 AWG ▁ Every battery fused at its + terminal · Trunk fused BOTH ends · High-current returns to the − bus bar, never chassis cluster_starter STARTER SIDE cluster_front FRONT cluster_ctrl CONTROL  &  SWITCHED LOADS cluster_bed BED starter Starting battery + 2nd lead-acid (winch buffer) dcdc VEVOR 40A DC-DC charger starter->dcdc 6 AWG · 50A fpos FRONT + BUS BAR dcdc->fpos 6 AWG · 50A cfbox Computer fuse/relay box (Pi · router · always-on) fpos->cfbox 6-8 AWG · 40-60A ctrl Waveshare ESP32-S3 8DI-8DO controller (Tier-0, always-on) fpos->ctrl 12V · ~5A rbox Relay / fuse box (Bosch relays) fpos->rbox 12V feed · fused bpos BED + BUS BAR fpos->bpos TRUNK +  2 AWG FUSE BOTH ENDS · 100-125A fneg FRONT − BUS BAR ★ STAR GROUND ★ frame FRAME / CHASSIS fneg->frame GROUND BOND 2-4 AWG ★ ONLY chassis tie ★ bneg BED − BUS BAR fneg->bneg TRUNK − 2 AWG b100 Front 100Ah LiFePO4 b100->fpos 100A @ term b100->fneg cfbox->fneg conv 12V→19V converter cfbox->conv 10A opti OptiPlex 5080 conv->opti 7-10A opti->fneg ctrl->fneg ctrl->conv converter on/off (deep-storage cut) ctrl->rbox DO triggers (Cat5) lights LIGHTS rock · underbody · pods (big bar via own harness relay) ctrl->lights big-bar harness trigger cont MAIN CONTACTOR 150-200A (NO=fail-safe open) ctrl->cont contactor coil (via Bosch relay) pcr PRE-CHARGE Bosch relay + 50W 5Ω resistor ctrl->pcr pre-charge ctrl rbox->fneg rbox->lights switched + fused/light 14-12 AWG b440 Bed 440Ah LiFePO4 (removable) Anderson SB175 b440->bneg b440->cont 4 AWG · 100-150A @ term b440->pcr 16-18 AWG cont->bpos 4 AWG pcr->bpos thru 5Ω resistor 16-18 AWG inv Inverter (gate to bed-present) inv->bpos 2-4 AWG · 100-150A inv->bneg DIRECT mppt MPPT (EPEVER) mppt->bpos 6-8 AWG · 40A mppt->bneg pv 400W panels pv->mppt PV

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