What it is: the Pixel Data + Power Cable, the feeder from the pylon control rack up to the LED runs. 16/6 wire, NL8 cable connector on BOTH ends, wired pin to pin (straight through). Six of the eight poles are used: the cable carries TWO complete SPI circuits (V+ / GND / Data each). At the rack it plugs into the rack's NL8 output; at the top an NL8 barrel couples it to the NL8-to-2xNL4 splitter.
| NL8 pole | Circuit | Function | Notes |
|---|---|---|---|
| 1+ | Circuit 1 | +24V | Circuit 1 = first run this cable serves |
| 1− | Circuit 1 | SPI DATA | |
| 2− | Circuit 1 | GND (V−) | |
| 2+ | — | empty | no conductor |
| 3+ | Circuit 2 | +24V | Circuit 2 = second run this cable serves |
| 3− | Circuit 2 | SPI DATA | |
| 4− | Circuit 2 | GND (V−) | |
| 4+ | — | empty | no conductor |
| Conductor | Lands on |
|---|---|
| Red | 1+ (+24V ckt 1) |
| Green | 1− (SPI DATA ckt 1) |
| Black | 2− (GND ckt 1) |
| Orange | 3+ (+24V ckt 2) |
| Blue | 3− (SPI DATA ckt 2) |
| White | 4− (GND ckt 2) |
Both circuits are the recorded nl8-spi-2x wire standard (ckt 1 Red/Green/Black, ckt 2 Orange/Blue/White). Run the wire color check on the cable build page against the standard; every cable identical.