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    • 1. 发明公开
    • Overload protection circuit
    • Überlastungsschutzschaltung。
    • EP0472797A1
    • 1992-03-04
    • EP90480130.5
    • 1990-08-29
    • INTERNATIONAL BUSINESS MACHINES CORPORATION
    • Fermier, YvanFerry, MichelJacquart, ChristianVachee, Pierre
    • H02H3/087
    • H02H3/087H03F2200/426
    • The overload protection circuit 12 comprises a resistor bridge 20 with a low impedance sensing resistor r and high impedance resistors R1 to R4 which generates voltages Va and Vb at the inputs 32 and 34 of a comparator 22. Voltage Vb depend upon the value of the load current so that the comparator provides at its output 36 a control signal for opening the switching device 24 comprising a field effect transistor when the load current exceeds a maximum value. Resistor R5 reinforces the effect of the control signal. This circuit can be used in a system which comprises a central power supply unit 8 which powers a plurality of devices such as 4. The status of the circuit 12 is reported to the system 8 though line 14 and circuit 12 comprises a control circuit 26 which is responsive to set and reset control signals on lines 14 and 18 from the unit 8 to close or open the switch 26.
    • 过载保护电路12包括具有低阻抗感测电阻器r的电阻器桥20和在比较器22的输入端32和34处产生电压Va和Vb的高阻抗电阻器R1至R4。电压Vb取决于负载的值 使得比较器在其输出端36提供用于在负载电流超过最大值时打开包括场效应晶体管的开关装置24的控制信号。 电阻R5加强了控制信号的影响。 该电路可用于包括为诸如4的多个装置供电的中央电源单元8的系统中。电路12的状态通过线路14报告给系统8,电路12包括控制电路26,控制电路26 响应于来自单元8的线路14和18上的设置和复位控制信号以关闭或打开开关26. <图像>
    • 2. 发明公开
    • Device for controlling the channel adapters in a data processing system remotely
    • 在einem Datenverarbeitungssystem中的Vorrichtung zur Fernsteuerung der Kanaladapter。
    • EP0325079A1
    • 1989-07-26
    • EP88480003.8
    • 1988-01-22
    • International Business Machines Corporation
    • Pierre, AnneVachee, PierreRobbe, Jean-ClaudeLeroy, Serge
    • G06F15/16G06F11/22
    • G06F15/177G06F11/22
    • The data handling system which incorporates the channel adpater control mechanism comprises a central control unit (30) attached to at least one host system through channel adapters (40) and a service processor (44) comprising a microprocessor running a program, attached to the central control unit and to at least one operator console through an input/output bus (104).
      The mechanism comprises a service processor interfacing means (78) attached to the input/output bus (104) and comprising register means into which the microprocessor causes bit configurations to be written in response to commands issued from one operator console or from the microprocessor program, said bit configurations being indicative of a desired status of the channel adapters,
      control means (80,112) for providing the bit configurations read from the register means to the channel adapter(s), whereby each of them may be set into the desired status, as indicated by the bit configurations.
    • 结合频道接收机控制机制的数据处理系统包括通过通道适配器(40)连接到至少一个主机系统的中央控制单元(30)和包括运行程序的微处理器(44),服务处理器 控制单元以及至少一个操作员控制台通过输入/输出总线(104)。 该机构包括附接到输入/输出总线(104)的服务处理器接口装置(78),并且包括寄存器装置,微处理器响应于从一个操作员控制台或微处理器程序发出的命令来写入位配置, 所述位配置指示通道适配器的期望状态,用于将从寄存器装置读取的位配置提供给通道适配器的控制装置(80,112),由此可以将它们中的每一个设置为期望状态,如 由位配置指示。
    • 10. 发明公开
    • Interconnection system for the attachment of user equipments to a communication processing unit
    • Verbindungssystemfürden Anschluss vonBenutzergerätenan eine Kommunikationsverarbeitungseinheit。
    • EP0394596A1
    • 1990-10-31
    • EP89480060.6
    • 1989-04-25
    • International Business Machines Corporation
    • Badaoui, MohamedCalvignac, JeanCarle, GuyGarcia, ChristianVachee, Pierre
    • G06F13/38H04L12/28
    • G06F13/385
    • Interconnection system for attaching a maximum number n of equipment users EU (DCE or DTE) to the line adapter 2 of a communication processing unit. The user data and control bits are carried on transmit and receive serial link 4 and 6 in data and control slot entities arranged in frame of period T, comprising one entity per user.
      These entities are allocated to the user equipments through multiplexing/demultiplexing circuit 10, link adapters 12-1 to 12-8 and connecting boxes 30-1 to 30-8. The user equipments are connected though active remote modules which are specific to the standardized interfaces of the user equipments. Link adapters 12-1 to 12-8 add to the data and control slot entities an outband slot which is used for exchanging control information, such as the active remote module address and type which are stored in memory 42, to be transmitted to the line adapter 2. The advantage of the interconnection system is that the attachment of the user equipments is simplified.
    • 用于将最多数量的设备用户EU(DCE或DTE)附加到通信处理单元的线路适配器2的互连系统。 用户数据和控制位在周期T的帧中布置的数据和控制时隙实体中的发送和接收串行链路4和6上承载,每个用户包括一个实体。 这些实体通过复用/解复用电路10,链路适配器12-1至12-8和连接盒30-1至30-8分配给用户设备。 用户设备通过用户设备的标准接口专用的主动远程模块连接。 链路适配器12-1至12-8向数据和控制时隙实体添加用于交换诸如存储在存储器42中的活动远程模块地址和类型的控制信息的外带时隙以发送到线路 适配器2.互连系统的优点是简化了用户设备的连接。