These connectors are prepared to work with Unbalanced Signal.
Some unbalanced connectors are: BNC, RCA, and JACK TS.
Pin designation:
BNC: Positive Signal: central contact, Return + Ground (Shield): chassis connector.
RCA: Positive Signal: central contact, Return + Ground (Shield): chassis connector.
JACK TS: Positive Signal: Tip, Return + Ground (Shield): Sleeve.
JACK TRS (Stereophonic applications in headphones): Right Signal: Tip, Left Signal: Ring, Return + Ground (Shield): Sleeve.
XLR-3:These connectors have 3 pins and are used for balanced connection, but if some equipment using unbalanced signal and accepts a XLR connection, pin 1 and pin 3 shall be connected.
