Balance connection

The so-called balanced connection is to send a balanced signal connection method using two signal lines to be offset by the interference of two signal lines of the same size, phase contrast, the final will make interference. Due to the low audio frequency range, in the long-distance transmission case, susceptible to interference, therefore, balanced connection to connect as an anti-jamming methods, professional audio equipment connection is most common. The two core shielded cable for the audio cable is also useful in the household appliances of the cable, but its transmission is left and right channels, the two signals do not belong to the balanced connection.

Imbalance in access method

Unbalanced connection is only one signal line connection of the transmission signal, because this connection is susceptible to interference, so only general household appliances, or less demanding circumstances.

Example: access to the XLR connector, balanced connection: 1 pin shielded, two pin end (also known as the hot end), 3 pin - end (also known as cold junction); 2, unbalanced connection : 1 feet and 3 feet connect the shield, two pin end (signal end).

Choose what connection is generally based on the specific requirements of the device interface can use a balanced connection to make use of the balanced connection to connect, be sure to see the instructions on the panel, it is best to read the instructions on the manual and requirements. May also encounter a number of occasions the end of the device interface is balanced interface, the other side of the equipment is unbalanced interface, just the side of the balance requirements are not very stringent conditions, to use a balanced connection, the unbalanced use of unbalanced access France, pay attention to the feet correspond to it. Demanding, you must use a converter circuit will be balanced into unbalanced, or imbalance into balance.