The optical switch is an important component as it allows a network supervisor to selectively choose the
input fiber. Intelligent switches are now being manufactured so that channel selection is automatic based on input
optical strength. The optical switch will automatically change to input channels if the signal strength drops below a
user set acceptable level. Optical signals can be lost should a fiber be damaged or disconnected. Evertz 7707BPX
is an intelligent switch that can be set to automatically return to the original input if the optical link is restored.