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Power and Ports

HVS - Raze supports multiple power inputs that share a common power bus.

Power​

  • Power inputs:
    • Passive PoE (not 802.3af/at): pins 4-5 = V+, pins 7-8 = GND.
    • USB-C power input (port on the same side as the Ethernet port).
    • Direct DC in.
  • Rated input voltage range: 2.5V to 36V.
  • Absolute maximum input voltage: 42V (do not design around this; treat 36V as the usable max).
  • Typical power draw:
    • Startup: ~10W
    • Idle: ~7W
    • Heavy load: ~15W
    • Peak: up to ~25W
  • Current guidance depends on your input voltage:
    • At 12V: plan for at least ~2A available.
    • At 5V: worst case is ~5A (size wiring accordingly).
  • Electrical behavior:
    • Each power input has its own reverse polarity + ESD protection.
    • External connectors also have their own ESD protection (including USB-A and the left-side USB-C).
    • No backfeed between ports (powering one input will not drive voltage out the others).
    • Highest-voltage input takes priority.
    • If the primary power source is lost, the next-highest input takes over immediately with no visible brownout.

Direct DC In (Polarity)​

  • Barrel jack orientation:
    • GND is toward the outside edge of the device.
    • Positive is toward the inside of the device.

Robot Power Notes​

  • Direct power from a robot power distribution panel is OK.
  • If you are using a regulated supply (or powering through a regulator), make sure it can deliver the required wattage at your chosen voltage.
  • Suggested fusing: start with a 5A fuse per camera/device on that power line.
  • If you power at 5V through passive PoE, the device can pull high current (up to ~5A worst case). Size wire gauge and connectors appropriately.

USB Power (5V Out)​

  • USB output is regulated 5V.
  • Only the left-side host ports share the USB 5V output bus:
    • USB-A (left side)
    • USB-C (left side, opposite the Ethernet port)
  • All USB 5V output shares a common ~5A bus with the CM5 and the rest of the device.
    • In practice, a single port can use around ~2.5A if the other ports are lightly loaded.
    • If you load multiple ports, budget closer to ~1.25A per port and divide as needed.

Ports​

  • Ethernet: 10/100.
  • USB-A: USB 3.0.
  • USB-C (x2): USB 2.0.
    • USB-C near Ethernet is primarily a power input and operates in device mode.
      • USB peripherals connected to that port will not be powered and will not enumerate.
      • This port can also be used for a direct laptop connection via USB gadget networking (when enabled in the image).