Built-in ethernet switch design for RTU redundant system
First Claim
1. An apparatus comprising:
- a controller board configured to couple to a carrier board that includes first and second Ethernet ports;
computer processing circuitry including first and second media access controls (MAC) and configured to select to transmit a packet to the first Ethernet port through the first MAC and to alternatively select to transmit the packet to the second Ethernet port through the second MAC;
an Ethernet switch configured to receive the packet from the first MAC and transmit the packet to the first Ethernet port, the Ethernet switch comprising;
a first switch port that includes a third MAC coupled to the first MAC;
a second switch port that includes an exposed physical Ethernet interface (PHY) configured to couple the Ethernet switch to the first Ethernet port; and
a third switch port that includes a non-exposed PHY configured to couple the first Ethernet port to a PHY of a second controller board; and
a third PHY configured to receive the packet from the second MAC and transmit the packet to the second Ethernet port,wherein the computer processing circuitry, the Ethernet switch, and the third PHY are mounted on the controller board.
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Accused Products
Abstract
A system includes a remote terminal unit (RTU) controller module. Each RTU controller module comprises a controller board configured to couple to a carrier board that includes first and second Ethernet ports. Each controller module comprises computer processing circuitry including the first and second MACs and configured to select to transmit a packet to the first Ethernet port through the first MAC and to alternatively select to transmit the packet to the second Ethernet port through the second MAC. Each controller module comprises an Ethernet switch configured to receive the packet from the first media access control (MAC) and transmit the packet to the first Ethernet port. Each controller module comprises a physical Ethernet interface (PHY) configured to receive the packet from the second MAC and transmit the packet to the second Ethernet port. The computer processing circuitry, the Ethernet switch, and the PHY are mounted on the controller board.
42 Citations
20 Claims
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1. An apparatus comprising:
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a controller board configured to couple to a carrier board that includes first and second Ethernet ports; computer processing circuitry including first and second media access controls (MAC) and configured to select to transmit a packet to the first Ethernet port through the first MAC and to alternatively select to transmit the packet to the second Ethernet port through the second MAC; an Ethernet switch configured to receive the packet from the first MAC and transmit the packet to the first Ethernet port, the Ethernet switch comprising; a first switch port that includes a third MAC coupled to the first MAC; a second switch port that includes an exposed physical Ethernet interface (PHY) configured to couple the Ethernet switch to the first Ethernet port; and a third switch port that includes a non-exposed PHY configured to couple the first Ethernet port to a PHY of a second controller board; and a third PHY configured to receive the packet from the second MAC and transmit the packet to the second Ethernet port, wherein the computer processing circuitry, the Ethernet switch, and the third PHY are mounted on the controller board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A carrier board comprising:
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a first connector configured to physically and communicably couple the carrier board to a first controller board; a second connector configured to physically and communicably couple the carrier board to a second controller board; first and second Ethernet ports coupled to the first and the second connectors, respectively; a first wiring configured to couple a first set of terminals of the first connector to the first Ethernet port; a second wiring configured to couple a second set of terminals of the second connector to the second Ethernet port; and a third wiring configured to couple the first connector to the second connector, wherein the carrier board is configured to; in response to receiving an uplink packet at the first set of terminals, carry the uplink packet to the first Ethernet port for transmission to an external Ethernet node; in response to receiving an uplink packet at the second set of terminals, carry the uplink packet to the second Ethernet port for transmission to the external Ethernet node; and in response to receiving an uplink packet from the second controller board through the third wiring, transmit the uplink packet to a non-exposed PHY port of an Ethernet switch of the first controller board, and subsequently transmit the uplink packet from an exposed PHY port of the Ethernet switch to the first Ethernet port. - View Dependent Claims (11, 12)
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13. A system comprising:
at least one remote terminal unit (RTU) controller module, each RTU controller module comprising; a controller board configured to couple to a carrier board that includes first and second Ethernet ports; computer processing circuitry including first and second media access controls (MAC) and configured to select to transmit a packet to the first Ethernet port through the first MAC and to alternatively select to transmit the packet to the second Ethernet port through the second MAC; an Ethernet switch configured to receive the packet from the first MAC and transmit the packet to the first Ethernet port, the Ethernet switch comprising; a first switch port that includes a third MAC coupled to the first MAC; a second switch port that includes an exposed physical Ethernet interface (PHY) configured to couple the Ethernet switch to the first Ethernet port; and a third switch port that includes a non-exposed PHY configured to couple the first Ethernet port to a PHY of another controller board; and a third PHY configured to receive the packet from the second MAC and transmit the packet to the second Ethernet port, wherein the computer processing circuitry, the Ethernet switch, and the third PHY are mounted on the controller board. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
Specification