Optical fiber transmission can block the passage of digital noise, and the loss in the transmission process is very small;
Coaxial transmission has higher fidelity due to stable impedance, wider frequency band, and less electro - optical, photoelectric conversion.
The two kinds of interfaces have different specifications and wire materials, so they cannot be used interchangeably.
Optical fiber transmission must use a special optical fiber line, coaxial transmission must use a special coaxial line (general should not be replaced by ordinary audio line), otherwise is not silent or audio quality range, and may even damage the equipment.
