GW APPARATUS AND OPTICAL SIGNAL PROCESSING METHOD
There is provided a GW device including: a main signal path control device that performs line concentration/distribution and adding/dropping on a received main signal; and a subscriber control device that is provided between the main signal path control device and a subscriber terminal and transmits and receives the main signal and a control signal to and from the subscriber terminal, in which the main signal path control device is separable from the subscriber control device.
1 . A GW device comprising:
a main signal path control device that performs line concentration/distribution and adding/dropping on a received main signal; and
a subscriber control device that is provided between the main signal path control device and a subscriber terminal and transmits and receives the main signal and a control signal to and from the subscriber terminal,
wherein the main signal path control device is separable from the subscriber control device.
2 . The GW device according to claim 1 ,
wherein the subscriber control device transmits and receives the control signal having a wavelength different from a wavelength of the main signal to and from the subscriber terminal.
3 . The GW device according to claim 1 or 2 ,
wherein the subscriber control device includes a main signal blocker that determines whether to transmit the main signal received from the subscriber terminal to the main signal path control device based on a wavelength of the main signal received from the subscriber terminal.
4 . An optical signal processing method comprising:
performing, via a main signal path control device, line concentration/distribution and adding/dropping on a received main signal; and
transmitting and receiving, via a subscriber control device that is provided between the main signal path control device and a subscriber terminal, the main signal and a control signal to and from the subscriber terminal,
wherein the main signal path control device is separable from the subscriber control device.