Real scroller cable has a larger size power pair of wires and a smaller size data pair of wires. You could re-purpose it for DMX if you use the data pair on pins 2 and 3 and the shield on pin 1. Don't connect the power pair of wires - they won't have the correct impedance for DMX.
@jfleenor Would you or your father care to comment??Real scroller cable has a larger size power pair of wires and a smaller size data pair of wires. You could re-purpose it for DMX if you use the data pair on pins 2 and 3 and the shield on pin 1. Don't connect the power pair of wires - they won't have the correct impedance for DMX.
Not many things use pins 4 and 5 but it might not be a bad idea to mark the cable to show that pins 4 and 5 aren't connected.
-Todd
@Stan Longhofer and @Jay Ashworth The price differential is likely due to the differing quantities in the amount of shielded twisted pair cables sold compared to the vastly lesser amount of raw cables manufactured with one pair of shielded thinner gauge conductors plus one pair of unshielded larger gauge conductors with both pairs enclosed in a single, durable / flexible insulating protective jacket. I honestly suspect this accounts for the appreciable differences in the relative costs; both the costs of raw cables / soldering your own and the costs of factory made cables. @derekleffew Care to comment?
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