Fully Wired

Power and data over the cable: the simplest light-gun architecture done properly.

Firearms

Fully Wired · Deep Dive

Fully Wired

The baseline every other architecture is measured against.

Power and data over the cable: the simplest light-gun architecture done properly.

Photo: The base of a Blamcon printed light gun's grip with its panel-mount GX16 connector by John Yan, Gaming Nexus

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    Volumes

    1. Vol 1 The Fully Wired Gun — One Cable, Two Sources, One Plug What the fully wired architecture is, why the first printed MP7 uses it, what has to cross the cable, how the commercial guns already do it, and the order in which the plugs go in
    2. Vol 2 The Umbilical — Conductors, Drop, Shielding, Flex Life and Strain Relief Three metres of cable that carries a 90-ohm data pair, a 5 V supply held to a 125 mV ground budget, and amps of pulsed 24 V: what each conductor must be, what the drop costs a regulated stage, which cable types publish a flex life, and where the cable is held
    3. Vol 3 The GX16 — Ratings, the Pin Map, and a Slip That Cannot Put 24 V on USB What a GX16 aviation connector is and what its sellers' ratings are worth, why it needs eight pins, the pin allocation that puts 24 V where no slip can move it and VBUS where a slip does no harm, and how the gun side is wired
    4. Vol 4 The Far-End Junction Box — Where the Brick, the PC and the Pedal Meet the Cable A passive breakout in a three-dollar plastic box: what goes in it and what deliberately does not, why it must not be metal, the parts with dated prices, the build, and the hot-plug hazard at the barrel jack
    5. Vol 5 Signal Integrity, Latency and Grounding Down the Cable Why full-speed USB shrugs off an aviation connector but not an arbitrary pair of wires, how much ground offset its receiver tolerates, what three metres of cable add to the gun's latency (a millisecond of polling and twenty nanoseconds of wire), and where every ground in the system meets
    6. Vol 6 What Goes Wrong, What It Costs, and What to Decide The failure modes of a tethered gun and the guard against each, the bench checks that turn this dive's assumptions into measurements, the whole wired setup priced, and the decision rows it proposes