Rate adjustable backplane and method for a telecommunications node
    1.
    发明授权
    Rate adjustable backplane and method for a telecommunications node 有权
    速率可调背板和电信节点的方法

    公开(公告)号:US06760327B1

    公开(公告)日:2004-07-06

    申请号:US09452829

    申请日:1999-12-01

    IPC分类号: H04L1228

    CPC分类号: H04L49/606 H04L12/6402

    摘要: A rate adjustable backplane includes a set of switch slots configured to receive one or more switch cards forming a switch core and a plurality of line slots each configured to receive a line card. A low speed bus couples the line slots to the set of switch slots. A high speed bus also couples the line slots to the set of switch slots. Each line slot includes a low speed connector coupled to the low speed bus and a high speed connector coupled to the high speed bus. The low speed connector is adapted to receive a mating connector of a line card to establish a low speed communication connection between the line card and the switch core. The high speed connector is adapted to receive a mating connector of the line card to establish a high speed link between the line card and the switch core.

    摘要翻译: 速率可调背板包括一组开关槽,其被配置为接收形成开关芯的一个或多个开关卡和多个配置成接收线卡的线槽。 低速总线将线路插槽连接到交换机插槽组。 高速总线也将线槽耦合到一组开关插槽。 每个线槽包括耦合到低速总线的低速连接器和耦合到高速总线的高速连接器。 低速连接器适于接收线路卡的匹配连接器,以在线路卡和交换机核心之间建立低速通信连接。 高速连接器适于接收线路卡的匹配连接器,以在线路卡和交换机核心之间建立高速链路。

    Method for universal channel allocation based on DS-0 channelized format
    6.
    发明授权
    Method for universal channel allocation based on DS-0 channelized format 有权
    基于DS-0信道化格式的通用信道分配方法

    公开(公告)号:US06434166B1

    公开(公告)日:2002-08-13

    申请号:US09364770

    申请日:1999-07-30

    IPC分类号: H04L1266

    CPC分类号: H04J3/125 H04J3/1647

    摘要: A universal DS-0 channelized format is provided wherein selected states of CAS bits are used to indicate to the transport mechanism when DS-0 channels are not being used for voice and are available for use for data transport. In addition, the T1 frame format carries CAS bits only in the first DS-0 channel, so that robbed bits are disabled and not used to carry ABCD signaling bits, thereby avoiding any risk of data corruption. Still further, a special CAS signaling value not defined as a CAS state, is employed in a frame nibble instead of a frame counter to indicate that the state is in the first DS-0 slot.

    摘要翻译: 提供通用DS-0信道化格式,其中当DS-0信道未被用于语音并可用于数据传输时,CAS位的选择状态用于向传输机制指示。 此外,T1帧格式仅在第一DS-0信道中携带CAS比特,因此抢占比特被禁用,不用于携带ABCD信令比特,从而避免数据损坏的风险。 另外,在帧半字节而不是帧计数器中采用未被定义为CAS状态的特殊CAS信令值,以指示状态处于第一DS-0时隙。