Cable Clones
 

With serial digital signals, as used in video systems it is often necessary to ensure that a driver can support the length of cable the specification demands. For example in standard definition video using a serial bit rate of 270Mbts the minimum length is 300m.

Alternatively in an installation it may be necessary to ensure that the received signal is not too close to the knee point and at risk of ‘falling over’ should a little more attenuation be introduced. The safety margin is usually called head room. Both these operations can be achieved by plugging in lengths of cable but this is inconvenient and costly. An alternative is to simulate the effect of the cable by a lumped constant network.

The Faraday product to do this is called a Cable Clone and is able to simulate the effect of various lengths of cable. Versions suitable for different types of cable and bit rates of 270, 360 and 1.5Gbts, including HDTV cables clones are available.