公开(公告)号：EP0802487A2

公开(公告)日：1997-10-22

申请号：EP97302535.6

申请日：1997-04-14

Applicant: Compaq Computer Corporation

Inventor： Sides, Chi Kim ,  McKenzie, Philip J. ,  Basile, Barry S.

IPC: G06F13/40

CPC classification number: G06F13/4081 ,  H02H9/004

Abstract: A protection circuit 116 for a computer system 110 having PCI expansion cards 120 and PCI expansion slots 118 with multiple power rails 312,322;314,328;318,324;320,326 for supplying power to the PCI expansion cards is disclosed. The protection circuit includes a current monitor 212 that monitors the current levels drawn by the PCI expansion card at each power rail. An inrush current controller 330/332/334 controls the initial current applied to each of the power rails when an expansion card is initially inserted into an expansion slot. A voltage monitor 212 monitors the voltage levels applied to selected power rails and a disconnector 210 disconnects the power to the PCI expansion slot when either the current level drawn by the PCI expansion card at any of the power rails goes beyond a selected range or when the voltage levels at any of the selected monitored power rails are below a selected threshold, or when commanded to by the computer system.

Abstract translation: 公开了一种用于具有PCI扩展卡120的计算机系统110的保护电路116和具有用于向PCI扩展卡供电的多个电源轨312,322,314,328,318,324,320,326的PCI扩展槽118。 保护电路包括电流监视器212，其监视由PCI扩展卡在每个电力轨上绘制的电流水平。 浪涌电流控制器330/332/334控制当扩展卡最初插入到扩展槽中时施加到每个电源轨的初始电流。 电压监视器212监视施加到所选择的电源轨的电压电平，并且当PCI扩展卡在任何电源轨下拉出的电流水平超过所选择的范围时，断路器210断开与PCI扩展槽的电力，或者当 所选择的所监视的电力轨道中的任何一个电压电平都低于选定的阈值，或者由计算机系统命令。

公开(公告)号：EP0817055A2

公开(公告)日：1998-01-07

申请号：EP97303800.3

申请日：1997-06-04

Applicant: Compaq Computer Corporation

Inventor： Goodrum, Alan L. ,  Sides, Chi Kim ,  Miller, Joseph P. ,  Cox, Tod B. ,  Cook, M. Damian ,  Sanders, Michael C.

IPC: G06F11/20

CPC classification number: G06F11/2025 ,  G06F11/0757 ,  G06F11/142 ,  G06F11/2002 ,  G06F11/2023 ,  G06F11/2028 ,  G06F11/2033 ,  G06F11/2038 ,  G06F11/2046 ,  G06F11/22 ,  G06F13/4022

Abstract: Control is switched from a first server to a second server in a fault tolerant system. The first and second servers are coupled with an expansion bus in an expansion box for communication with the expansion bus. An indication is provided to the second server to indicate the activity state of the first server. Communication between the first server and the expansion box is disabled if the indication indicates the first server is inactive. Communication between the second server and the expansion bus is disabled if the indication indicates that the first server is active. Communication between the second server is enabled if the indication indicates that the first server is inactive. The indication includes a heartbeat message transmitted periodically to the second server. The expansion bus includes a PCI bus.

Abstract translation: 控制从容错系统中的第一个服务器切换到第二个服务器。 第一和第二服务器与用于与扩展总线通信的扩展盒中的扩展总线连接。 向第二服务器提供指示以指示第一服务器的活动状态。 如果指示表明第一台服务器处于非活动状态，则第一台服务器和扩展盒之间的通信将被禁用。 如果指示表明第一台服务器处于活动状态，则第二台服务器和扩展总线之间的通信将被禁用。 如果该指示指示第一服务器不活动，则启用第二服务器之间的通信。 该指示包括周期性发送给第二服务器的心跳消息。 扩展总线包括一个PCI总线。

公开(公告)号：EP0817055B1

公开(公告)日：2003-05-02

申请号：EP97303800.3

申请日：1997-06-04

Applicant: Compaq Computer Corporation

Inventor： Goodrum, Alan L. ,  Sides, Chi Kim ,  Miller, Joseph P. ,  Cox, Tod B. ,  Cook, M. Damian ,  Sanders, Michael C.

IPC: G06F11/20

CPC classification number: G06F11/2025 ,  G06F11/0757 ,  G06F11/142 ,  G06F11/2002 ,  G06F11/2023 ,  G06F11/2028 ,  G06F11/2033 ,  G06F11/2038 ,  G06F11/2046 ,  G06F11/22 ,  G06F13/4022

Abstract: Control is switched from a first server to a second server in a fault tolerant system. The first and second servers are coupled with an expansion bus in an expansion box for communication with the expansion bus. An indication is provided to the second server to indicate the activity state of the first server. Communication between the first server and the expansion box is disabled if the indication indicates the first server is inactive. Communication between the second server and the expansion bus is disabled if the indication indicates that the first server is active. Communication between the second server is enabled if the indication indicates that the first server is inactive. The indication includes a heartbeat message transmitted periodically to the second server. The expansion bus includes a PCI bus.

公开(公告)号：EP0817055A3

公开(公告)日：1998-04-22

申请号：EP97303800.3

申请日：1997-06-04

Applicant: Compaq Computer Corporation

Inventor： Goodrum, Alan L. ,  Sides, Chi Kim ,  Miller, Joseph P. ,  Cox, Tod B. ,  Cook, M. Damian ,  Sanders, Michael C.

IPC: G06F11/20

CPC classification number: G06F11/2025 ,  G06F11/0757 ,  G06F11/142 ,  G06F11/2002 ,  G06F11/2023 ,  G06F11/2028 ,  G06F11/2033 ,  G06F11/2038 ,  G06F11/2046 ,  G06F11/22 ,  G06F13/4022

Abstract: Control is switched from a first server to a second server in a fault tolerant system. The first and second servers are coupled with an expansion bus in an expansion box for communication with the expansion bus. An indication is provided to the second server to indicate the activity state of the first server. Communication between the first server and the expansion box is disabled if the indication indicates the first server is inactive. Communication between the second server and the expansion bus is disabled if the indication indicates that the first server is active. Communication between the second server is enabled if the indication indicates that the first server is inactive. The indication includes a heartbeat message transmitted periodically to the second server. The expansion bus includes a PCI bus.