Maximum Transmission Length

The table below shows the distances that can be attained, based on the source impedance and the capacitance of the cable.

This applies to both balanced and unbalanced systems:


To simplify this table, the calculations ignore resistance. The capacitance of any Belden cable is listed in the online or paper catalog.

The source impedance, sometimes called the “output impedance” can be found in the equipment Owner’s Manual, Installation Manual, or by contacting the manufacturer of the equipment.