Abstract: An optical network routing device, which is disposed outside a space surrounded by walls, includes an optical transceiver, an optical-to-electrical signal converter and at least one first telecommunication signal port. The optical transceiver is configured to receive an optical signal. The optical-to-electrical signal converter is connected to the optical transceiver and is configured to convert the optical signal into an telecommunication signal. The at least one first telecommunication signal port is connected to the optical-to-electrical signal converter for transmitting the telecommunication signal to at least one second telecommunication signal port located in the space, wherein the at least one first telecommunication signal port complies with a home network communication protocol corresponding to the at least one second telecommunication signal port.

Abstract: An ink cartridge with negative-pressure regulating mechanism, comprising a first ink chamber, a second ink chamber and an regulating mechanism; the regulating mechanism is of a interlocking device composed of a damping device and a valve that, installed between the first ink chamber and the second ink chamber, is used for being the valve connecting the first ink chamber and the second ink chamber; when ink in the second ink chamber is being used, the inner pressure of the second ink chamber is to be lowered, thus activating the regulating mechanism, so that ink in the first ink chamber is led into the second ink chamber for stable replenishment.

Abstract: An ink cartridge with negative-pressure regulating mechanism, comprising a first ink chamber, a second ink chamber and an regulating mechanism; the regulating mechanism is of a interlocking device composed of a damping device and a valve that, installed between the first ink chamber and the second ink chamber, is used for being the valve connecting the first ink chamber and the second ink chamber; when ink in the second ink chamber is being used, the inner pressure of the second ink chamber is to be lowered, thus activating the regulating mechanism, so that ink in the first ink chamber is led into the second ink chamber for stable replenishment.