Where are these cables exactly? Perhaps they aren't exactly parallel cables but special purpose cables using db-25 ends. However, i thought i saw the signal specs for serial nrz-l or nrzi to be ...

Roebling, firm, wire manufacturers, Trenton, (1925. John A. Roebling's sons co.) siris_sil_246463 ...

Visualize the magnetic field of parallel current-carrying wires using Python. This short shows how to model and plot the field pattern, explore direction and strength, and build intuition for ...