Source: https://patents.google.com/patent/US9183168B2/en
Timestamp: 2020-08-15 10:38:32
Document Index: 587067300

Matched Legal Cases: ['ART) 137', 'ART 137', 'ART 137', 'ART 137', 'ART 137', 'ART 137', 'ART 137', 'ART 137', 'ART 237', 'ART 237', 'ART 237', 'ART 237', 'ART 237', 'ART 212']

US9183168B2 - Dual mode USB and serial console port - Google Patents
Dual mode USB and serial console port Download PDF
US9183168B2
US9183168B2 US13/774,713 US201313774713A US9183168B2 US 9183168 B2 US9183168 B2 US 9183168B2 US 201313774713 A US201313774713 A US 201313774713A US 9183168 B2 US9183168 B2 US 9183168B2
Active, expires 2034-01-24
US13/774,713
US20140244869A1 (en
Jason D. Adrian
Kevin W. Mundt
2013-02-22 Priority to US13/774,713 priority Critical patent/US9183168B2/en
2013-02-22 Application filed by Dell Products LP filed Critical Dell Products LP
2013-03-18 Assigned to DELL PRODUCTS, LP reassignment DELL PRODUCTS, LP ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ADRIAN, JASON D., MUNDT, KEVIN W.
2014-08-28 Publication of US20140244869A1 publication Critical patent/US20140244869A1/en
2015-11-10 Publication of US9183168B2 publication Critical patent/US9183168B2/en
2016-09-13 Assigned to FORCE10 NETWORKS, INC., CREDANT TECHNOLOGIES, INC., SECUREWORKS, INC., DELL INC., WYSE TECHNOLOGY L.L.C., PEROT SYSTEMS CORPORATION, ASAP SOFTWARE EXPRESS, INC., APPASSURE SOFTWARE, INC., DELL MARKETING L.P., DELL USA L.P., DELL SOFTWARE INC., DELL PRODUCTS L.P., COMPELLANT TECHNOLOGIES, INC. reassignment FORCE10 NETWORKS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
2016-09-14 Assigned to DELL PRODUCTS L.P., SECUREWORKS, INC., PEROT SYSTEMS CORPORATION, COMPELLENT TECHNOLOGIES, INC., FORCE10 NETWORKS, INC., DELL SOFTWARE INC., CREDANT TECHNOLOGIES, INC., APPASSURE SOFTWARE, INC., DELL INC., DELL MARKETING L.P., ASAP SOFTWARE EXPRESS, INC., DELL USA L.P., WYSE TECHNOLOGY L.L.C. reassignment DELL PRODUCTS L.P. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
2016-09-14 Assigned to CREDANT TECHNOLOGIES, INC., SECUREWORKS, INC., COMPELLENT TECHNOLOGIES, INC., WYSE TECHNOLOGY L.L.C., DELL INC., DELL MARKETING L.P., ASAP SOFTWARE EXPRESS, INC., DELL USA L.P., PEROT SYSTEMS CORPORATION, DELL PRODUCTS L.P., APPASSURE SOFTWARE, INC., DELL SOFTWARE INC., FORCE10 NETWORKS, INC. reassignment CREDANT TECHNOLOGIES, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
2034-01-24 Adjusted expiration legal-status Critical
230000001702 transmitter Effects 0.000 claims description 4
G06F13/4286—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using a handshaking protocol, e.g. RS232C link
G06F2213/0002—Serial port, e.g. RS232C
G06F2213/0042—Universal serial bus [USB]
An information handling system includes a service connector operable to receive an RS-232 signal and a USB signal. The service connector is a USB type connector. The information handling system also includes a voltage converter operable to convert the RS-232 signal from a first voltage level to a first serial signal at a second voltage level when a signal received by the service connector is the RS-232 signal, a protocol converter operable to convert the USB signal to a second serial signal at the second voltage level when the signal received by the service connector is the USB signal, and a UART operable to receive the first serial signal and the second serial signal.
This disclosure relates generally to information handling systems, and more particularly to accessing a management controller using multiple protocols without conflict.
As the value and use of information continues to increase, individuals and businesses seek additional ways to process and store information. One option is an information handling system. An information handling system generally processes, compiles, stores, and/or communicates information or data for business, personal, or other purposes. Because technology and information handling needs and requirements may vary between different applications, information handling systems may also vary regarding what information is handled, how the information is handled, how much information is processed, stored, or communicated, and how quickly and efficiently the information may be processed, stored, or communicated. The variations in information handling systems allow for information handling systems to be general or configured for a specific user or specific use such as financial transaction processing, airline reservations, enterprise data storage, or global communications. In addition, information handling systems may include a variety of hardware and software resources that may be configured to process, store, and communicate information and may include one or more computer systems, data storage systems, and networking systems. In an enterprise computing environment, a management system can be connected to a server, a network appliance, a storage system, or other elements of the enterprise computing environment. The management system provides a system administrator with an ability to configure the elements of the enterprise computing environment.
FIG. 1 is a block diagram illustrating an information handling system according to an embodiment of the present disclosure;
FIGS. 2 and 3 are block diagrams illustrating various use cases for the information handling system of FIG. 1;
FIG. 4 is a block diagram illustrating an information handling system according to another embodiment of the present disclosure;
FIGS. 5 and 6 are block diagrams illustrating various use cases for the information handling system of FIG. 4; and
FIG. 1 illustrates an embodiment of a managed information handling system 100. For purpose of this disclosure an information handling system may include any instrumentality or aggregate of instrumentalities operable to compute, classify, process, transmit, receive, retrieve, originate, switch, store, display, manifest, detect, record, reproduce, handle, or utilize any form of information, intelligence, or data for business, scientific, control, entertainment, or other purposes. For example, an information handling system may be a personal computer, a PDA, a consumer electronic device, a network server or storage device, a switch router or other network communication device, or any other suitable device and may vary in size, shape, performance, functionality, and price. The information handling system may include memory, one or more processing resources such as a central processing unit (CPU) or hardware or software control logic, and operates to execute code. Additional components of the information handling system may include one or more storage devices that can store code, one or more communications ports for communicating with external devices as well as various input and output (I/O) devices, such as a keyboard, a mouse, and a video display. The information handling system may also include one or more buses operable to transmit communications between the various hardware components.
Managed information handling system 100 includes a service connector 110, multiplexers 115 and 130, a voltage converter 120, a USB-to-Serial protocol converter 125, a chipset component 135, a control console module 140, indicators 145 and 155, and a pull-up resistor 150. Service connector 110 is a serial communication connector. In a particular embodiment, service connector 110 represents a Universal Serial Bus (USB) connector such as a Type-A connector, a Type-B connector, a Mini-A connector, a Mini-B connector, or another USB connector, as needed or desired. The serial communication connections of service connector 110 are connected to a de-multiplexed port of multiplexer 115, and a VBUS (5V) connection is connected to selector inputs of multiplexers 115 and 130, to pull-up resistor 150, and to indicator 155. A first multiplexed port (port 0) of multiplexer 115 is connected to a high voltage level port of voltage converter 120, and a low voltage level port of the voltage converter is connected to a first multiplexed port (port 0) of multiplexer 130. A second multiplexed port (port 1) of multiplexer 115 is connected to a USB signal port of USB-to-Serial protocol converter 125, and a serial signal port of the USB-to-Serial protocol converter is connected to a second multiplexed port (port 1) of multiplexer 130. Chipset component 135 includes a universal asynchronous receiver/transmitter (UART) 137 that is connected to a de-multiplexed port of multiplexer 130 and operates to translate serial data received from the multiplexer to parallel data, and vice versa. Chipset component 135 is connected to control console module 140 and to indicator 145.
Control console module 140 operates to provide an interface whereby a system administrator can configure information handling system 100. For example, a system administrator can connect a management system 160 or 170 to service connector 110 with a service cable 165 or 175, and can access control console module 140 to access a command line interface whereby the system administrator can set operating conditions within information handling system 100, such as basic input/output system (BIOS) settings, firmware settings, other operating conditions, or the like. Control console module 140 is illustrated as being connected to chipset component 135, but this is not necessarily so, and the control console module can be implemented as a part of the BIOS, a system management suite, or other hardware or code on information handling system 100, as needed or desired.
As such, management systems 160 and 170 include system management programs that permit the management systems to communicate with control console module 140 via serial communication links. Management system 160 operates to communicate with control console module 140 using an RS-232 serial communication protocol (i.e., a +12V/−12V serial data signal) via a DB-9 connector, and so service cable 165 includes a DB-9 connector for connecting to the management system and a USB type connector for connecting to service connector 110. Management system 170 operates to communicate with control console module 140 using a USB communication protocol via a USB connector, and so service cable 175 includes a USB type connector for connecting to the management system and another USB type connector for connecting to service connector 110. In a particular embodiment, service cable 175 includes a USB Type-A connector for connecting to management system 170, and a USB Mini-B connector for connecting to service connector 110. Note that, although service connector 110 is a USB type connector, the service connector does not provide a standard USB port functionality to information handling system 100. Rather, service connector 110 operates to provide a physical USB connection for translating RS-232 serial communications from management system 160 to a 3.3V serial communications protocol to UART 137, and to translate USB communications from management system 170 into the 3.3V serial communications protocol to the UART. The detailed operation of information handling system 100 is described in FIGS. 2 and 3, below.
FIG. 2 illustrates the operation of information handling system 100 when management system 160 is connected to the information handling system via service cable 165. The DB-9 connector of service cable 165 is connected to management system 160 and the USB type connector is connected to service connector 110. Here, because there is no VBUS (5V) connection equivalent in the DB-9 connection, the selector inputs to multiplexers 115 and 130 are pulled to a low state by pull-down resistor 150, and the multiplexers are each set to their default, port 0 selected, state. Management system 160 communicates a +12V/−12V communication signal to service connector 110, and the signal is provided to the input of multiplexer 115. Because port 0 is selected at multiplexer 115, the signal is routed to voltage converter 120 where the +12V/−12V signal is converted to a 3.3V signal level and because port 0 is selected at multiplexer 130, the converted signal is routed to UART 137. Chipset component 135 detects that UART 137 is receiving the signal and establishes the communication link to control console module 140, and also sets an output to indicator 145. Indicator 145 includes a light emitting diode which illuminates a connection good indication 147 when the communication link between management system 160 and control console module 140 is established. The skilled artisan will recognize that the communication link between management system 160 and control console module 140 is a bidirectional link, and that multiplexers 115 and 130 are therefore bidirectional elements of information handling system 100, and that voltage converter 120 also operates to convert 3.3V signals from UART 137 to +12V/−12V signals to management system 160.
FIG. 3 illustrates the operation of information handling system 100 when management system 170 is connected to the information handling system via service cable 175. One of the USB type connectors of service cable 175 is connected to management system 170 and the other USB type connector is connected to service connector 110. Here the VBUS (5V) connection is present, so the selector inputs to multiplexers 115 and 130 are in a high state, and the multiplexers are each in the port 1 selected state. The presence of the VBUS (5V) voltage also serves to provide power to indicator 155. Indicator 155 includes a light emitting diode which illuminates a USB connection indication 157 when management system 170 is connected to service connector 110. USB connection indication 157 serves as a visual indication that service connector 110 is a service connection that uses a physical USB connector to communicate with control console module 140. Management system 170 communicates a USB communication signal to service connector 110, and the signal is provided to the input of multiplexer 115. Because port 1 is selected at multiplexer 115, the signal is routed to USB-to-Serial protocol converter 125 where the USB signal is converted to a 3.3V signal level and because port 1 is selected at multiplexer 130, the converted signal is routed to UART 137. Chipset component 135 detects that UART 137 is receiving the signal and establishes the communication link to control console module 140, and also sets the output to indicator 145, thereby illuminating connection good indication 147 when the communication link between management system 170 and control console module 140 is established. The skilled artisan will recognize that the communication link between management system 170 and control console module 140 is also a bidirectional link, and that USB-to-Serial protocol converter 125 also operates to convert 3.3V signals from UART 137 to USB signals to management system 170. In a particular embodiment, USB-to-Serial protocol converter 125 is powered using a 5V power plane, and the presence of the VBUS (5V) voltage is also provided to a power connection of the USB-to-Serial protocol converter. In this way, USB-to-Serial protocol converter 125 consumes no power unless management system 170 is connected to information handling system 100.
FIG. 4 illustrates an embodiment of a managed information handling system 200, similar to information handling system 100, including a service connector 210, a voltage converter 220, a chipset component 235, a control console module 240, and indicators 245 and 255. Service connector 210 is a serial communication connector, and represents a USB connector. The serial communication connections of service connector 210 are connected to a high voltage level port of voltage converter 220, and a low voltage level port of the voltage converter is connected to UART 237 of chipset 235. The VBUS (5V) connection of service connector 210 is connected to indicator 255. Chipset component 235 is connected to control console module 240 and to indicator 245.
Control console module 240 is similar to control console module 140, and operates to provide an interface whereby a system administrator can configure information handling system 200. For example, the system administrator can connect management system 160 to service connector 210 with service cable 165 to access control console module 240. Management system 160 operates to communicate with control console module 240 using the RS-232 serial communication protocol via the DB-9 connector. However, because information handling system 200 lacks multiplexers or a USB-to-serial protocol converter, management system 170 can not be connected to information handling system 200 to access control console module 240. Thus, although service connector 210 is a USB type connector, the service connector does not provide any USB port functionality to information handling system 200. Rather, service connector 110 operates to provide a physical USB connection for translating RS-232 serial communications from management system 260 to a 3.3V serial communications protocol to UART 237, as described below.
FIG. 5 illustrates the operation of information handling system 200 when management system 160 is connected to the information handling system via service cable 165. The DB-9 connector of service cable 165 is connected to management system 160 and the USB type connector is connected to service connector 210. Management system 160 communicates a +12V/−12V communication signal to service connector 210, and the signal is provided to the high voltage level input of voltage converter 220 where the +12V/−12V signal is converted to a 3.3V signal level, and the converted signal is routed to UART 237. Chipset component 235 detects that UART 237 is receiving the signal and establishes the communication link to control console module 240, and also sets an output to indicator 245. Indicator 245 includes a light emitting diode which illuminates a connection good indication 247 when the communication link between management system 160 and control console module 240 is established. The skilled artisan will recognize that the communication link between management system 160 and control console module 240 is a bidirectional link, and that voltage converter 220 also operates to convert 3.3V signals from UART 237 to +12V/−12V signals to management system 160.
FIG. 6 illustrates the operation of information handling system 200 when an attempt is made to connect management system 170 to the information handling system. One of the USB type connectors of service cable 175 is connected to management system 170 and the other USB type connector is connected to service connector 210. Here the VBUS (5V) connection is present, so the VBUS (5V) voltage is provided to power indicator 255. Indicator 255 includes a light emitting diode which illuminates a no-USB connection indication 257 when management system 170 is connected to service connector 210. No-USB connection indication 257 serves as a visual indication that service connector 210 does not provide any USB port functionality to information handling system 200. Management system 170 communicates a USB communication signal to service connector 210, and the signal is provided to the high voltage level input of voltage converter 220. However, because the USB signal voltage level an RS-232 protocol signal, the low voltage level output of the voltage converter does not provide a valid signal to UART 212, and no connection is made with control console module 240, and indicator 245 is not illuminated.
FIG. 7 illustrates an information handling system 700 including a processor 702 and one or more additional processors 704, a chipset 710, a memory 720, a graphics interface 730, include a basic input and output system/extensible firmware interface (BIOS/EFI) module 740, a disk controller 750, a disk emulator 760, an input/output (I/O) interface 770, a network interface 780, and a management controller (MC) 790. Processor 702 is connected to chipset 710 via processor interface 706, and processor 704 is connected to the chipset via processor interface 708. Memory 720 is connected to chipset 710 via a memory bus 722. Graphics interface 730 is connected to chipset 710 via a graphics interface 732, and provides a video display output 736 to a video display 734. In a particular embodiment, information handling system 700 includes separate memories that are dedicated to each of processors 702 and 704 via separate memory interfaces. An example of memory 720 includes random access memory (RAM) such as static RAM (SRAM), dynamic RAM (DRAM), non-volatile RAM (NV-RAM), or the like, read only memory (ROM), another type of memory, or a combination thereof.
MC 790 is connected via a network channel 794 to a management station 796 that is external to information handling system 700. Management station 796 operates in conjunction with management controller 790 to provide out-of-band management of information handling system 700. Commands, communications, or other signals are communicated between MC 790 and management station 796 to monitor status of information handling system 700, to control the operations of the resources of the information handling system, and to update the resources. In a particular embodiment, MC 790 is powered by a separate power plane in information handling system 700, so that the MC can be operated while other portions of the information handling system are powered off. In another embodiment, MC 790 is operated during boot of information handling system 700.
a service connector operable to receive an RS-232 signal and a Universal Serial Bus (USB) signal, wherein the service connector comprises a USB type connector;
a voltage converter operable to convert the RS-232 signal from a first voltage level to a first serial signal at a second voltage level when a signal received by the service connector is the RS-232 signal;
a protocol converter operable to convert the USB signal to a second serial signal at the second voltage level when the signal received by the service connector is the USB signal; and
a universal asynchronous receiver/transmitter (UART) operable to receive the first serial signal and the second serial signal.
2. The information handling system of claim 1, further comprising:
a first multiplexer operable to provide the RS-232 signal to the voltage converter when the signal received by the service connector is the RS-232 signal, and to provide the USB signal to the protocol converter when the signal received by the service connector is the USB signal; and
a second multiplexer operable to provide the first serial signal to the UART when the signal received by the service connector is the RS-232 signal, and to provide the second serial signal to the UART when the signal received by the service connector is the USB signal.
3. The information handling system of claim 2, wherein the first multiplexer and the second multiplexer are in a default state when the signal received by the service connector is the RS-232 signal, and are in a selected state when the signal received by the service connector is the USB signal.
4. The information handling system of claim 3, wherein:
the selection of the default state of the first multiplexer and the second multiplexer is based upon the absence of a voltage on a VBUS pin of the service connector when a USB connector is connected to the service connector; and
the selection of the selected state of the first multiplexer and the second multiplexer is based upon the presence of the voltage on the VBUS pin of the service connector when the USB connector is connected to the service connector.
5. The information handling system of claim 4, further comprising:
an indicator that is unlit when the voltage is absent, and is lit when the voltage is present.
6. The information handling system of claim 5, wherein the indicator provides an indication that the service connector is not a standard USB connection when the indicator is lit.
7. The information handling system of claim 1, further comprising:
a chipset component that includes the UART: and
a control console module connected to the chipset component, and operable to communicate with a management system via the service connector.
8. The information handling system of claim 1, further comprising:
an indicator that is unlit when the UART does not receive the first serial signal and the second serial signal and that is lit when the UART receives the first serial signal or the second serial signal.
receiving, at a service connector of an information handling system, a first signal, wherein the service connector comprises a Universal Serial Bus (USB) type connector;
determining that the first signal is an RS-232 signal;
in response to determining that the first signal is an RS-232 signal:
providing the RS-232 signal to a voltage converter operable to convert the RS-232 signal from a first voltage level to a second signal at a second voltage level; and
providing the second signal to a universal asynchronous receiver/transmitter (UART); and
in response to determining that the first signal is a USB signal:
providing the USB signal to a protocol converter operable to convert the USB signal to a third signal at the second voltage level; and
providing the third signal to the UART.
in further response to determining that the first signal is the RS-232 signal:
providing the RS-232 signal to the voltage converter via a first port of a first multiplexer; and
providing the second signal to the UART via a first port of a second multiplexer; and
in further response to determining that the first signal is the USB signal:
providing the USB signal to the voltage converter via a second port of the first multiplexer; and
providing the third signal to the UART via a second port of the second multiplexer.
setting the first multiplexer and the second multiplexer into a default state in further response to determining that the first signal is the RS-232 signal; and
setting the first multiplexer and the second multiplexer into a selected state in further response to determining that the first signal is the USB signal.
determining that a VBUS pin of the service connector does not provide a voltage level;
selecting of the default state of the first multiplexer and the second multiplexer in response to determining that the VBUS pin does not provide the voltage level;
determining that the VBUS pin provides the voltage level; and
selecting of the selected state of the first multiplexer and the second multiplexer in response to determining that the VBUS pin provides the voltage level.
providing an indication when the VBUS pin provides the voltage level.
14. The method of claim 13, wherein the indicator provides an indication that the service connector is not a standard USB connection when the indication is provided.
providing, from the UART, the second signal and the third signal to a control console module of the information handling system; and
communicating between the control console module and a management system via the service connector.
providing an indication when the UART receives the second signal or the third signal.
a voltage converter operable to convert the RS-232 signal from a first voltage level to a serial signal at a second voltage level when a signal received by the service connector is the RS-232 signal;
a universal asynchronous receiver/transmitter (UART) operable to receive the serial signal; and
an indicator that is unlit when a VBUS pin of the service connector does not provide a voltage level and that is lit when the VBUS pin provides the voltage level.
18. The information handling system of claim 17, wherein the indicator provides an indication that the service connector is not a standard USB connection when the indicator is lit.
19. The information handling system of claim 17, further comprising:
20. The information handling system of claim 17, further comprising:
an indicator that is unlit when the UART does not receive the serial signal and that is lit when the UART receives the serial signal.
US13/774,713 2013-02-22 2013-02-22 Dual mode USB and serial console port Active 2034-01-24 US9183168B2 (en)
US13/774,713 US9183168B2 (en) 2013-02-22 2013-02-22 Dual mode USB and serial console port
US14/930,483 US9858238B2 (en) 2013-02-22 2015-11-02 Dual mode USB and serial console port
US14/930,483 Continuation US9858238B2 (en) 2013-02-22 2015-11-02 Dual mode USB and serial console port
US20140244869A1 US20140244869A1 (en) 2014-08-28
US9183168B2 true US9183168B2 (en) 2015-11-10
ID=51389400
US13/774,713 Active 2034-01-24 US9183168B2 (en) 2013-02-22 2013-02-22 Dual mode USB and serial console port
US14/930,483 Active 2033-07-29 US9858238B2 (en) 2013-02-22 2015-11-02 Dual mode USB and serial console port
US (2) US9183168B2 (en)
US20160055117A1 (en) * 2013-02-22 2016-02-25 Dell Products, Lp Dual Mode USB and Serial Console Port
US20160357692A1 (en) * 2013-11-20 2016-12-08 Feitian Technologies Co., Ltd Recognition method communication mode
US20190045654A1 (en) * 2017-08-07 2019-02-07 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. Server having a dual-mode serial bus port enabling selective access to a baseboard management controller
WO2020103107A1 (en) * 2018-11-22 2020-05-28 北京比特大陆科技有限公司 Data processing apparatus
EP3015950A1 (en) 2014-10-28 2016-05-04 Targus Group International, Inc. Power and data adapter, and related systems and methods
US20170228338A1 (en) * 2014-11-14 2017-08-10 Renesas Electronics Corporation Semiconductor device and its control method
EP3234729A4 (en) 2014-12-15 2018-08-08 Targus International LLC Power and data adapter
US9710406B2 (en) * 2014-12-15 2017-07-18 Intel Corporation Data transmission using PCIe protocol via USB port
TW201627862A (en) * 2015-01-26 2016-08-01 鴻海精密工業股份有限公司 Debug circuit, debug request circuit and debug system
WO2016122672A1 (en) * 2015-01-30 2016-08-04 Hewlett Packard Enterprise Development Lp Connection type detection circuit
US9652430B2 (en) * 2015-02-10 2017-05-16 Nxp Usa, Inc. Configurable serial and pulse width modulation interface
CN108737900A (en) * 2015-03-17 2018-11-02 青岛海信宽带多媒体技术有限公司 A kind of output method of terminal signaling
CN106155956A (en) * 2015-04-02 2016-11-23 中兴通讯股份有限公司 Interface identification method and terminal
WO2017019090A1 (en) * 2015-07-30 2017-02-02 Hewlett-Packard Development Company, L.P. A data and power adapter
US10318270B2 (en) * 2015-09-24 2019-06-11 Guangdong Oppo Mobile Telecommunications Corp, Ltd. Method for upgrading firmware of adapter, apparatus, and system thereof
CN105653461B (en) * 2016-03-17 2018-08-03 烽火通信科技股份有限公司 A kind of single USB interfaces turn the converting system of more UART debugging interfaces
CN106649165A (en) * 2016-12-30 2017-05-10 湖南国科微电子股份有限公司 Method for establishingcommunication connection of embedded system and PC host
US10663498B2 (en) 2017-07-20 2020-05-26 Targus International Llc Systems, methods and devices for remote power management and discovery
WO2020103099A1 (en) * 2018-11-22 2020-05-28 北京比特大陆科技有限公司 Data processing apparatus
US6040981A (en) 1999-01-26 2000-03-21 Dell Usa, L.P. Method and apparatus for a power supply cam with integrated cooling fan
US20050262285A1 (en) * 2004-05-18 2005-11-24 Gil-Jong Kang Data communication cable for connection between mobile communication terminal and computer
US7127538B1 (en) * 2004-05-21 2006-10-24 Zilog, Inc. Single-pin serial communication link with start-bit flow control
US20080278905A1 (en) 2007-05-09 2008-11-13 Dell Products, Lp Information handling systems including fan control modules and methods of using the systems
US20090059513A1 (en) 2007-08-30 2009-03-05 Dell Products, Lp Cooling Subsystem with Easily Adjustable Mounting Assembly
US20090265045A1 (en) 2008-04-21 2009-10-22 Dell Products, Lp Information handling system including cooling devices and methods of use thereof
US20110012547A1 (en) 2009-07-17 2011-01-20 Dell Products, Lp System and Method for a High Efficiency Remote Three Phase Fan Commutation Integration Control in an Information Handling System
US7996577B2 (en) 2008-11-12 2011-08-09 Cisco Technology, Inc. Automatically switching console connection
US20120209447A1 (en) * 2009-10-02 2012-08-16 Schneider Electric Automation Gmbh Communication converter for connecting an automation device to a computer and method for controlling the communication converter
CN102779107A (en) * 2011-05-10 2012-11-14 神讯电脑(昆山)有限公司 COM port adapter for connecting USB (universal serial bus) device
US9183168B2 (en) * 2013-02-22 2015-11-10 Dell Products, Lp Dual mode USB and serial console port
2013-02-22 US US13/774,713 patent/US9183168B2/en active Active
2015-11-02 US US14/930,483 patent/US9858238B2/en active Active
"DS-UT232R-200(500) USB to RS232 Adapter Cable" Data Sheet; Future Technology Devices International Limited; Document Reference No. FT-000341; Oct. 29, 2010. *
US9858238B2 (en) * 2013-02-22 2018-01-02 Dell Products, Lp Dual mode USB and serial console port
US10169276B2 (en) * 2013-11-20 2019-01-01 Feitian Technologies Co., Ltd. Detecting a communication mode via interruptions
US10582636B2 (en) * 2017-08-07 2020-03-03 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. Server having a dual-mode serial bus port enabling selective access to a baseboard management controller
US20160055117A1 (en) 2016-02-25
US20140244869A1 (en) 2014-08-28
US9858238B2 (en) 2018-01-02
US9952986B2 (en) 2018-04-24 Power delivery and data transmission using PCIe protocol via USB type-C port
US9491139B2 (en) 2016-11-08 System and method to use common addresses on different interfaces in a management controller without conflict
US8521873B2 (en) 2013-08-27 System and method of emulating a network controller within an information handling system
US8489905B2 (en) 2013-07-16 Method and system for building a low power computer system
US8055919B2 (en) 2011-11-08 Port power controller for USB hubs with legacy battery charge support
US9990313B2 (en) 2018-06-05 Storage apparatus and interface apparatus
US8498121B2 (en) 2013-07-30 Printed circuit assembly with determination of storage configuration based on installed paddle board
US9118584B2 (en) 2015-08-25 Dynamic scalable baseboard management controller stacks on single hardware structure
US10210120B2 (en) 2019-02-19 Method, apparatus and system to implement secondary bus functionality via a reconfigurable virtual switch
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Owner name: BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS FIRST LIEN COLLATERAL AGENT, TEXAS
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