1. A network system for transmitting a signal having a framing protocol comprising:
a common card and a plurality of line cards across a backplane having a plurality of lines in parallel connecting the common card and the plurality of lines cards in parallel communication, said framing protocol allowing each of said plurality of lines cards to be optimally configured and including:
(a) a super frame for transmission between the common card and the plurality of line cards;
(b) said super frame having at least one control frame, said control frame including a global parameters field and a line card field, said global parameters field including configuration information to configure one or more aspects of each of said plurality of line cards in the same manner, said line card field including configuration information to individually configure one or more aspects of each of said plurality of line cards to allow each of said plurality of line cards to operate optimally
wherein said framing protocol is not transmitted outside the network electronic equipment shelf and is transparent to equipment connected to the network electronic equipment shelf.
2. The framing protocol as set forth in claim 1, wherein:
(a) said global field parameters includes at least one of the following:
(i) number of bauds per frame
(ii) number of frames in a super frame;
(iii) ratio of downstream frames to upstream frames;
(iv) training seed and PAM level for equalization frame;
(v) guardband sizes; and
(vi) number of expansion bits in prefix time slot;
where upstream refers to flow from one or more of said plurality of line cards to said common card.
3. The framing protocol as set forth in claim 2, wherein:
(a) said global parameters field is expandable.
4. The framing protocol as set forth in claim 1, wherein:
(a) said global field parameters includes each of the following parameters:
(i) number of bauds per frame;
(ii) number of frames in a super frame;
(iii) ratio of downstream frames to upstream frames;
(iv) training seed and PAM level for equalization frame;
(v) guardband sizes; and
(vi) number of expansion bits in prefix time slot;
where upstream refers to flow from one or more of said plurality of line cards to said common card.
5. A framing protocol as set forth in claim 1, wherein:
(a) control frame includes an equalization seed and said super frame includes an equalization frame, said equalization seed is a multi-bit seed used to start scrambling in said equalization frame, said equalization frame is used to train receivers of said plurality of line cards.
6. The framing protocol as set forth in claim 1, wherein:
(a) said card config field includes sets of configurations of at least one of the following:
(i) number of bits per symbol per wire during a payload transmission;
(ii) T parameter for Reed Solomon codeword;
(iii) Interleaving on or off; and,
(iv) trellis coding on or off
where the card config select field is used to indicate which card config set to use on specific line cards to optimize performance.
7. The framing protocol as set forth in claim 1, wherein:
(a) said card config field includes sets of configurations of each of the following:
(i) number of bits per symbol per wire during a payload transmission;
(ii) T parameter for Reed Solomon codeword;
(iii) Interleaving on or off;
(iv) trellis coding on or off;
where the card config select field is used to indicate which card config set to use on specific line cards to optimize performance.
8. In a legacy shelf for transmitting a signal having a framing protocol comprising:
a common card and a plurality of line cards across a backplane having at least six lines in parallel connecting the common card and the plurality of lines cards in parallel communication, said framing protocol allowing each of said plurality of line cards to be optimally configured and including:
(a) a super frame generated by said common card for transmission between a common card and a plurality of line cards across at least five of the six parallel connecting lines;
and, (b) said super frame having at least one control frame, said control frame including a global parameters field and a line card field, said global parameters field including configuration information to configure one or more aspects of each of said plurality of line cards in the same manner, said line card field including configuration information to individually configure one or more aspects of each of said plurality of line cards to allow each of said plurality of line cards to operate optimally
wherein said framing protocol is not transmitted outside the network electronic equipment shelf and is transparent to equipment connected to the network electronic equipment shelf.
9. In a network electronic equipment shelf for transmitting a signal having a framing protocol comprising:
a common card and a plurality of line cards across a backplane bus having a plurality of lines in parallel connecting the common card and the plurality of lines cards in parallel communication, said framing protocol allowing each of said plurality of line cards to be optimally configured and including:
(a) a super frame for transmission between a common card and a plurality of line cards;
(b) said super frame having at least one control frame, said control frame including a global parameters field and a line card field, said global parameters field including configuration information to configure one or more aspects of each of said plurality of line cards in the same manner, said line card field including configuration information to individually configure one or more aspects of each of said plurality of line cards to allow each of said plurality of line cards to operate optimally, and
(c) a line frame to be transmitted over each of said plurality of lines, said line frame having a prefix time slot identifying which line card of said plurality of line cards is to receive a signal over which one of said plurality of lines;
wherein said framing protocol is not transmitted outside the network electronic equipment shelf and is transparent to equipment connected to the network electronic equipment shelf.
10. The framing protocol of claim 9 including six upstream line frames and five downstream line frames.
11. The framing protocol of claim 9 including six, independent upstream line frames and five, independent downstream line frames.
12. The framing protocol of claim 9, wherein the line frame to be transmitted over each of said plurality of lines is independent of each of the other line frames to be transmitted over each of said plurality of lines.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An optical output controller comprising:
a wavelength conversion device operable to change the wavelength of pumped laser light;
a heatingcooling unit operable to control the temperature of the wavelength conversion device;
a temperature detector operable to detect the temperature of the wavelength conversion device;
a temperature controller operable to control the heatingcooling unit such that the detected temperature corresponds to a target temperature;
an optical output detector operable to detect the optical output from the wavelength conversion device;
an optical-output maximization controller operable to determine a temperature at which the optical output is maximized according to the optical output detected by the optical output detector and the detected temperature detected by the temperature detector and, further, operable to output the temperature difference between the determined temperature and the detected temperature; and
an adder operable to add the temperature difference outputted from the optical-output maximization controller to the target temperature,
wherein the temperature difference is added to the target temperature to correct the target temperature value for maximizing the optical output.
2. The optical output controller according to claim 1, wherein the optical-output maximization controller includes:
a temperature-characteristic identification unit operable to calculate a temperature characteristic of the wavelength conversion device and operable to output a temperature at which the optical output from the wavelength conversion device is maximized; and
a difference detector operable to calculate the difference between the detected temperature and the temperature outputted from the temperature-characteristic identification unit.
3. The optical output controller according to claim 1, wherein the optical-output maximization controller calculates a temperature characteristic of the wavelength conversion device from the detected temperature and the detected optical output and determines a temperature at which the optical output from the wavelength conversion device is maximized.
4. The optical output controller according to claim 1, wherein the optical output controller controls a laser light source.
5. An optical output control method for a wavelength conversion device, comprising:
(a) setting an optimum temperature at which the optical output from the wavelength conversion device is maximized at the state where the wavelength conversion device was designed, as a target temperature Tm* for use in controlling the temperature of the wavelength conversion device;
(b) detecting the temperature T1 of the wavelength conversion device;
(c) detecting the optical output P1 from the wavelength conversion device;
(d) setting the optimum temperature Tm* of the wavelength conversion device at the time of design, as a temporarily-set optimum temperature Ttmp;
(e) calculating the optical output Ptmp at the detected temperature using the detected temperature T1, the temporarily-set optimum temperature Ttmp and a maximum optical output Pm*;
(f) determining whether or not the absolute value of the difference between the calculated optical output Ptmp and the detected optical output P1 falls within a predetermined range \u0394P;
(g) determining which of the detected optical output P1 and the calculated optical output Ptmp is larger than the other one, if the step (f) results in the determination that the absolute value does not fall within the predetermined range \u0394P;
(h) if the step (g) results in P1\u2212Ptmp>0, substituting the difference (Ttmp\u2212\u0394T) resulted from the subtraction of a predetermined temperature \u0394T from the temporary optimum temperature Ttmp, as a new Ttmp, for the temporary optimum temperature Ttmp, and, then, returning to the step (e);
(i) if the step (g) results in P1\u2212Ptmp<0, substituting the summation (Ttmp+\u0394T) resulted from the addition of a predetermined temperature \u0394T to the temporary optimum temperature Ttmp, as a new Ttmp, for the temporary optimum temperature Ttmp, and, then, returning to the step (e);
(j) outputting the temporary optimum temperature Ttmp at this time as an optimum temperature Tm, if the step (f) results in the determination that the absolute value falls within the predetermined range \u0394P;
(k) calculating the temperature difference \u0394Tm between the optimum temperature Tm and the optimum temperature Tm* at the time of design; and
(l) adding the temperature difference \u0394Tm to the target temperature Tm* and controlling the temperature of the wavelength conversion device such that the wavelength conversion device becomes the updated target temperature (Tm*+\u0394Tm).