High temperature wire and cable mini hdmi cable disposal

High temperature wire and cable is the most important element of the

system resulting in EMC doubt. Therefore , in practice, often found : When

the external device on the cable dragged  WISDOM Terminal BLOCK down, the device can successfully

pass the test , encountered electromagnetic disturbing appearance, as long

as the cable pull down, it will not see the shortcomings in the field of

representation . This is because the cable is an efficient antenna for

receiving and radiation . Further, the distance parallel to the cable

wires in the maximum transmission , and therefore there is a large segment

capacitance and mutual inductance between the wire , which could result in

the onset of crosstalk between signal conductors .
One of the first questions is to dispose of the cable shield of the cable

, but about how shielded cable termination , how shielded cable is useful

series of questions is widely concerned and confused questions. This

section talks about electromagnetic fields on cable annoyance doubt, cable

radiation doubt, doubt crosstalk between the  WISDOM fiber optic cable wires , and these questions

countermeasures.
Effects of electromagnetic fields on a cable
When the cable is in the electromagnetic field will induce a noise voltage

cable. Circumstances and the radiation corresponding to the cable , the

electromagnetic field in the voltage induced on the cable is also divided

into two kinds of common mode and differential mode . Common mode voltage

is the electromagnetic field in the loop between the cable and the earth

attack , differential mode voltage is the electromagnetic field in the

signal line and the signal ground loop consisting of attack. When the

circuit is right or wrong balance circuit , common mode current is

converted to differential mode voltage of the circuit annoyance . Since

the signal line and the loop area formed small signal ground , so the

common-mode noise voltage is still dominated .
( 1 ) electromagnetic field induced voltage on the cable
When the cable is very near to the earth : the electric field component

perpendicular to the ground, the magnetic field component perpendicular to

the wire - when the ground loop induction strongest.
When the cable is very far away from the earth : the electric field

component parallel to the ground, the magnetic field component

perpendicular to the wire - when the ground loop induction strongest.
The electromagnetic field induced in the conductor is the common mode

voltage method , the voltage based  WISDOM Network Cabinet on the system load of the common

conductor or ground reference point , usually in reference to the system

ground plane of reference points . On multi-core cables , which means that

all of the cable conductors are exposed to the same field, the induced

voltage depends on them and see each conductor impedance between points .