This BOM is aligned with Features F002–F005. It is procurement-ready at the class level. Part numbers may be selected later, but substitutions must respect invariants and be logged if they change behavior.
- External AC/DC power supply: 24 V DC, 10 A (≈240 W), reputable brand class (Mean Well / Delta / TDK)
- Locking high-current DC panel connector (≥10 A @ 24 V)
- Blade fuse holder (ATO/ATC)
- 10 A blade fuse
- Buck converter: 24 V → 5 V, 5 A capability
- Buck converter: 24 V → 3.3 V, 3 A capability
- eFuse channels (programmable, latch-off): 3 channels
- 5 V rail
- 3.3 V rail
- Variable bay output
- Rocker switches (rail enable via eFuse enable): 2
- Momentary push buttons (fault reset): 2
- LEDs:
- Rail ON: 2
- Rail FAULT: 2
- Variable FAULT: 1
- Adjustable DC-DC module 0–24 V, ≥3 A, with display and its own enable
- Banana jacks: red + black (pair)
- I²C 1×6
- UART 1×6
- SPI 2×5
- RS-485 1×6
- Logic analyzer 2×12 (16 channels + grounds)
- DIP switch banks for:
- I²C pull-ups enable + 3.3/5 selection
- RS-485 TERM/BIAS/VLOGIC selection
- I²C pull-up resistors footprints
- RS-485 termination resistor footprint (120 Ω)
- RS-485 bias resistors footprints
- Optional TVS footprint on A/B lines
- Carrier PCBs: 80×120 mm, 4× M3 mounting: 2
- Dupont header bank for 16 GPIO
- Screw terminals: 8 GPIO + 2 GND per carrier (qty depends on terminal pitch/blocks)
- Control buttons accessible (EN/BOOT, RUN)
- Internal USB 2.0 hub module: 4-port
- Logic analyzer dongle (external): 16-channel class
- Embedded steel plate (isolated)
- Isolation sheet (PET/FR4)
- Magnetic mat (printer-bed style)
- 2020 extrusion: rear + sides
- Heat-set inserts: M3
- M3 fasteners/standoffs
- Ferrules assortment
- Power wire: 16–18 AWG
- Dupont wires assortment