Digital transmission requires long cable types that hold the associated voltage drop as low as possible. Therefore, according to EIA 485-Standard & DMX 512-Specification these CDMX cables are with a conductor cross section of at least 0.22 mm&sup 2 (AWG 24). A double shielding as demanded by PLASA & USITT, is reached by the combination of foil & network screen & gives the CDMX an in addition high tensile strength. This cable reahed at a baud rate of 250 k Hz ensure the required wave resistance between 100 & 120 Ohm, & is therefore uniformly for the transmission of DMX & AES/EBU signals.