The clock circuit of an integrated circuit operates with variations such as temperature, ground noise, and power noise. The coated plastic cladding optical fiber 1 has a cladding layer 3 that is formed on an outer periphery of a core glass 2 made of a quartz glass and formed of a polymer resin whose refractive index is lower than core glass, and a resin coating layer 5 that is formed on an outer periphery of the cladding layer 3 and is formed of a thermosetting resin. The beverage container is contained in a pressure chamber having an interior configured to accommodate the beverage container and a lid. A VPN connection is used to extend the private network of remote devices to the IP telemetry gateway. The driven guide is configured to receive the strand elements from the stationary guide, individually guide the strand elements received from the stationary guide, and to further pass the core member.