Power amplifier system with an internal optical communication link
Techniques for implementing an internal optical communication link in a power amplifier system are disclosed. In one embodiment, the techniques may be realized as a power amplifier system that includes a panel, an optical link, and a controller. The panel includes a plurality of signal endpoints and a first optical interface, the first optical interface being coupled to each of the plurality of signal endpoints. The optical link is coupled to the first optical interface. The controller is configured to manage operation of the power amplifier system and is coupled to the optical link via a second optical interface. The controller communicates with each of the plurality of signal endpoints over the optical link.
1. A power amplifier system comprising:
a plurality of electronic components each coupled to a first optical interface;
an optical link coupled to the first optical interface;
a controller coupled to the optical link via a second optical interface, the controller communicating with each of the plurality of electronic components over the optical link; and
an electrical interconnect providing a communication link between each of the plurality of electronic components and the controller.
2. The power amplifier of claim 1 , wherein the first optical interface and the second optical interface are serializer/deserializer (SerDes) interfaces.
3. The power amplifier of claim 1 , further comprising a radio frequency (RF) circuit that produces electromagnetic interference (EMI) within the power amplifier system.
4. The power amplifier system of claim 1 , wherein the plurality of electronic components include at least one of an input/output interface, an Ethernet interface, a device configured to receive commands, a device configured to receive control signals, a device that generates status information, a display port, a status indicator, a touch screen display, a peripheral interface controller, or a fan.
5. The power amplifier system of claim 1 , wherein the plurality of electronic components are mounted to an enclosure of the power amplifier system.
6. The power amplifier system of claim 1 , wherein the controller communicates over the optical link using pulse-width modulation (PWM) control signals.
7. The power amplifier system of claim 1 , wherein the electrical interconnect provides a contingency route for the controller to communicate with each of the plurality of electronic components, the contingency route being used in response to determining that the optical link is unavailable.
8. The power amplifier system of claim 1 , wherein the controller comprises a motherboard of the power amplifier system.
9. The power amplifier of claim 1 , wherein the optical link comprises a multi-mode fiber.
10. The power amplifier of claim 1 , wherein the controller further comprises an electrical-to-optical engine and an optical-to-electrical engine, wherein the electrical-to-optical engine and the optical-to-electrical engine each perform multiplexing to provide one or more communication lanes over the optical link.
11. The power amplifier of claim 10 , wherein the one or more communication lanes include at least one of a transmit lane, a receive lane, or a bidirectional lane.
12. The power amplifier of claim 10 , wherein the one or more communication lanes include at least one dedicated communication lane that bypasses the second optical interface.
13. The power amplifier of claim 1 , wherein the electrical interconnect supplies power (i) one or more of the plurality of electronic components, (ii) the controller, or (iii) one or more of the plurality of electronic components and the controller.
14. A method for communicating in a power amplifier system comprising:
communicating, by a controller of the power amplifier system, via an optical interface, over an optical link, first information to or from a first electronic component of the power amplifier system;
communicating, by the controller, via the optical interface, over the optical link, second information to or from a second electronic component of the power amplifier system; and
communicating, by the controller, over an electrical interconnect, third information to or from the first electronic component or the second electronic component in response to determining that the optical link is unavailable.
15. The method of claim 14 , wherein the optical interface is a serializer/deserializer (SerDes) interface.
16. The method of claim 14 , further comprising multiplexing the first information and the second information to provide one or more communication lanes over the optical link.
17. The method of claim 16 , wherein the one or more communication lanes include at last one dedicated communication lane that bypasses a second optical interface, and wherein at least one of the first information and the second information is communicated over the dedicated communication lane.
18. A power amplifier system comprising:
a plurality of electronic components each coupled to a first optical interface;
an optical link coupled to the first optical interface;
a controller coupled to the optical link via the second optical interface, the controller communicating with each of the plurality of electronic components over the optical link; and
an electrical-to-optical engine and an optical-to-electrical engine, the electrical-to-optical engine and the optical-to-electrical engine performing multiplexing to provide one or more communication lanes over the optical link including a dedicated communication lane that bypasses the second optical interface.
19. The power amplifier system of claim 18 , wherein the controller communicates over the optical link using pulse-width modulation (PWM) control signals.
20. The power amplifier of claim 19 , wherein the first optical interface and the second optical interface are serializer/deserializer (SerDes) interfaces.