Controlling delivery of power and network communications to a set of devices
An improved assembly (e.g., an integrated power cycler and terminal server) controls power and communications to a set of devices. The assembly includes a network port configured to connect to a network, a set of device ports configured to connect to the set of devices through a set of power cords, and a controller coupled to the network port and to the set of device ports. The controller is configured to (i) control delivery of power from a power source to the set of devices through the set of device ports and the set of power cords, and (ii) direct conveyance of communications from the network to the set of devices through the set of device ports and the set of power cords while power is delivered to the set of devices through the set of device ports and the set of power cords.
1. An electronic system, comprising:
a set of devices;
a set of power cords; and
an assembly configured to control power and communications to the set of devices through the set of power cords, the assembly including:
a network port configured to connect to a network,
a set of device ports connected to the set of devices through the set of power cords, and
a controller coupled to the network port and to the set of device ports, the controller being configured to:
control delivery of power from a power source to the set of devices through the set of device ports and the set of power cords, and
direct conveyance of communications from the network to the set of devices through the set of device ports and the set of power cords while power is delivered to the set of devices through the set of device ports and the set of power cords;
wherein the controller of the assembly includes:
memory which stores terminal server code and power cycler code; and
a common central processing unit coupled to the memory, the common central processing unit being configured to operate as a terminal server providing terminal access to the set of devices while running the terminal server code, and as a power cycler enabling power cycling of the set of devices on behalf of a set of external network hosts of the network while running the power cycler code.
2. The electronic system as in claim 1 , further comprising:
a common equipment rack which supports the assembly and the set of devices; and
wherein the central processing unit, when operating as the power cycler, is configured to:
receive a power cycle command from a network host through the network port, the network host being external to the electronic system, and
in response to the power cycle command, (i) turn off delivery of power to a device through a device port and a power cord and subsequently (ii) turn on delivery of power to the device through the device port and the power cord to reset the device.
3. The electronic system as in claim 1 , further comprising:
a common equipment rack which supports the assembly and the set of devices; and
wherein the central processing unit, when operating as the power cycler, is configured to:
receive a periodic timer signal, and
in response to the periodic timer signal, periodically turn off delivery of power to a device through a device port and a power cord for a predefined amount of time, and subsequently turn on the delivery of power to the device through the device port and the power cord to manage power consumption of the electronic system on a periodic basis.
4. The electronic system as in claim 1 wherein each device port of the assembly includes a ground conductor and a power conductor; wherein the power source includes a ground terminal and a power terminal; and wherein the central processing unit, when operating as the power cycler, is configured to:
provide an electrical ground pathway between the ground terminal of the power source and the ground conductor of a device port, and an electrical power pathway between the power terminal of the power source and the power conductor of the device port to deliver power to a device which connects to the device port through a power cord, the electrical ground and power pathways being configured to convey a nominal power signal of at least 110 Volts at a frequency of at least 50 Hertz.
5. The electronic system as in claim 4 wherein one of the controller and the device port further includes:
a power line communications encoder/decoder circuit configured to incorporate a power line communications signal with the nominal power signal to provide power and network communications from the network host through the power cord to the device.
6. The electronic system as in claim 1 wherein the controller further includes:
a power line communications encoder/decoder circuit configured to incorporate a common power line communications signal with a nominal power signal provided by the power source for distribution of the common power line communications signal and the nominal power signal through each of the set of device ports.
7. The electronic system as in claim 1 wherein each device port includes:
a power line communications encoder/decoder circuit configured to incorporate a respective power line communications signal with a nominal power signal provided by the power source for distribution of the respective power line communications signal solely through that device port in an isolated manner together with distribution of the nominal power signal.
8. The electronic system as in claim 1 , further comprising:
a common equipment rack which supports the assembly and the set of devices; and
wherein the set of devices includes multiple software test platforms to form at least a portion of a computerized software testing system.
9. The electronic system as in claim 1 wherein the assembly further includes a housing support which is arranged to support the network port, the set of device ports and the controller, the housing support defining a substantially 1U tall form factor.
10. An assembly for controlling power and communications to a set of devices, the assembly comprising:
a network port configured to connect to a network;
a set of device ports configured to connect to the set of devices through a set of power cords; and
a controller coupled to the network port and to the set of device ports, the controller being configured to:
control delivery of power from a power source to the set of devices through the set of device ports and the set of power cords, and
direct conveyance of communications from the network to the set of devices through the set of device ports and the set of power cords while power is delivered to the set of devices through the set of device ports and the set of power cords;
wherein the controller includes:
memory which stores terminal server code and power cycler code, and
a common central processing unit coupled to the memory, the common central processing unit being configured to operate as a terminal server providing terminal access to the set of devices while running the terminal server code, and as a power cycler enabling power cycling of the set of devices on behalf of a set of external network hosts of the network while running the power cycler code.
11. The assembly as in claim 10 wherein the assembly and the set of devices reside on a common equipment rack to form at least a portion of an electronic system; and wherein the central processing unit, when operating as the power cycler, is configured to:
receive a power cycle command from a network host through the network port, the network host being external to the electronic system, and
in response to the power cycle command, (i) turn off delivery of power to a device through a device port and a power cord and subsequently (ii) turn on delivery of power to the device through the device port and the power cord to reset the device.
12. The assembly as in claim 10 wherein the assembly and the set of devices reside on a common equipment rack to form at least a portion of an electronic system; and wherein the central processing unit, when operating as the power cycler, is configured to:
receive a periodic timer signal, and
in response to the periodic timer signal, periodically turn off delivery of power to a device through a device port and a power cord for a predefined amount of time, and subsequently turn on the delivery of power to the device through the device port and the power cord to manage power consumption of the electronic system on a periodic basis.
13. The assembly as in claim 10 wherein each device port includes a ground conductor and a power conductor; wherein the power source includes a ground terminal and a power terminal; and wherein the central processing unit, when operating as the power cycler, is configured to:
provide an electrical ground pathway between the ground terminal of the power source and the ground conductor of a device port, and an electrical power pathway between the power terminal of the power source and the power conductor of the device port to deliver power to a device which connects to the device port through a power cord, the electrical ground and power pathways being configured to convey a nominal power signal of at least 110 Volts at a frequency of at least 50 Hertz.
14. The assembly as in claim 13 wherein one of the controller and the device port further includes:
a power line communications encoder/decoder circuit configured to incorporate a power line communications signal with the nominal power signal to provide power and network communications from the network host through the power cord to the device.
15. The assembly as in claim 10 wherein the controller further includes:
a power line communications encoder/decoder circuit configured to incorporate a common power line communications signal with a nominal power signal provided by the power source for distribution of the common power line communications signal and the nominal power signal through each of the set of device ports.
16. The assembly as in claim 10 wherein each device port includes:
a power line communications encoder/decoder circuit configured to incorporate a respective power line communications signal with a nominal power signal provided by the power source for distribution of the respective power line communications signal solely through that device port in an isolated manner together with distribution of the nominal power signal.
17. The assembly as in claim 10 wherein the set of devices includes multiple software test platforms; and wherein the assembly and the multiple software test platforms reside on a common equipment rack to form at least a portion of a computerized software testing system.
18. The assembly as in claim 10 , further comprising:
a housing support which is arranged to support the network port, the set of device ports and the controller, the housing support defining a substantially 1U tall form factor.
19. An assembly for controlling power and communications to a set of devices, the assembly comprising:
a network port configured to connect to a network;
a set of device ports configured to connect to a set of devices through a set of power cords; and
control means, coupled to the network port and to the set of device ports, for (i) controlling delivery of power from a power source to the set of devices through the set of device ports and the set of power cords, and (ii) directing conveyance of communications from the network to the set of devices through the set of device ports and the set of power cords while power is delivered to the set of devices through the set of device ports and the set of power cords;
wherein the control means includes:
means for storing terminal server code and power cycler code, and
means, coupled to the memory, for operating (i) as a terminal server providing terminal access to the set of devices while running the terminal server code, and (ii) as a power cycler enabling power cycling of the set of devices on behalf of a set of external network hosts of the network while running the power cycler code.
20. The assembly as in claim 19 , further comprising:
a housing support which is arranged to support the network port, the set of device ports and the control means, the housing support defining a substantially 1U tall form factor.