摘要:
Described are a system and method for forwarding K-bytes between optical cards in a communication system. The system includes a first card and second card each connected to a backplane. The second card obtains protection-signaling information from an incoming signal arriving at the second card from over a network. The second card generates an out-of-band signal having the protection-signaling information, and transmits the out-of-band signal having the protection-signaling information to the first card in the network element. In one embodiment, the first card is a cross-connect card, and the cross-connect card simultaneously transmits the out-of-band signal with the protection-signaling information to a plurality of cards in the system.
摘要:
A system identification module for storing system specific information is described. The system includes a housing, a module connector and a persistent memory for storing system specific data associated with a communications system having a backplane. The housing and the module connector define an enclosure surrounding the persistent memory. The module connector can be electrically coupled to and removed from the backplane connector. The persistent memory can be a programmable read-only memory device. System specific information such as the system serial number, the date of manufacture, the system vintage and the common language equipment identifier (CLEI) code can be remotely accessed using the system identification module.
摘要:
Described are a system and method of communicating status and protection information between cards in a communications system. The system has a plurality of cards connected to a backplane. The plurality of cards includes a tributary card and a cross-connect card for forwarding data traffic between cards in the network element. The backplane has a link that is dedicated to carrying out-of-band signals between the tributary card and the cross-connect card. The tributary card transmits information to the cross-connect card in a first out-of-band signal over the link and the cross-connect card broadcasts the information to the plurality of cards in the network element in a second out-of-band signal.
摘要:
Described are a system and method for initializing a traffic card in a network element after a restart. The traffic card receives status information regarding a shelf processor card over a low-level link. If the status information indicates that the shelf processor card is unavailable, the traffic card supports traffic using provisioning data stored at the traffic card. Otherwise, if the status information indicates that the shelf processor card is un-initialized or initializing, the traffic card waits for the shelf processor card to be available. If the shelf processor is operational, the traffic card communicates with the shelf processor card to determine which provisioning data to use. When restarting the card, boot code stored in a first memory bank is executed. If this boot code is determined to be invalid, execution is redirected to boot code stored in a second memory bank to continue the restart process of the card.
摘要:
A multi-service network element is configurable for use in various types of communications networks. The network element has a service interface card, a service interface electrical connector for receiving the service interface card, an I/O electrical connector for receiving an I/O module, and a backplane. The backplane has a first side, an opposite side, a first means for electrically connecting the service interface electrical connector to the first side, and a second means for electrically connecting the I/O electrical connector to either side of the backplane. The backplane is partitioned into columns and rows of electrical connectors. Each column corresponds to a card slot for receiving a circuit pack and each row corresponds to a section of the backplane having traces for carrying a particular type of electrical signals between circuit packs.
摘要:
An apparatus for mounting to a head protector including a housing having a plurality of parts each defining a portion of the housing, one or more components to be accommodated in the housing, and one or more apertures in the housing for introducing a compound for securing the one or more components in the housing, a protrusion on the exterior surface of the housing for abutting against the exterior surface of the head protector, and a sensor and a coupling for mechanically coupling the sensor to the protrusion to minimize relative movement between the head protector and the sensor.
摘要:
An apparatus as provided for measuring acceleration of a person's head or other object. The apparatus comprises a sensor for sensing acceleration and a controller for controlling recording of data resulting from the sensed acceleration due to an explosive force. The controller is adapted to determine whether or not to enable recording of the data based on the sensed acceleration. A data receiver is provided to receive the sensed acceleration data from the sensing means, and requires electrical power to enable data to be received thereby. The controller controls electrical power to the receiver so that if the sensed acceleration reaches or exceeds a predetermined value, electrical power to the data receiver is enabled. The recorded acceleration data may be used for injury analysis.
摘要:
An apparatus is provided for recording information about an event resulting in application of a force to a body. The apparatus comprises data recording means for recording the information, sensor means for sensing a parameter which enables a predetermined source of force to be distinguished from another, different source of force, and control means responsive to the sensed parameter for controlling the data recording means. The sensor means may comprise a pressure sensor for sensing shockwaves resulting from an explosive force and the resulting signal used to distinguish from other events, such as blunt impacts. The pressure signal may be used to control the storage of acceleration data for injury analysis.
摘要:
An apparatus as provided for measuring acceleration of a person's head or other object. The apparatus comprises a sensor for sensing acceleration and a controller for controlling recording of data resulting from the sensed acceleration due to an explosive force. The controller is adapted to determine whether or not to enable recording of the data based on the sensed acceleration. A data receiver is provided to receive the sensed acceleration data from the sensing means, and requires electrical power to enable data to be received thereby. The controller controls electrical power to the receiver so that if the sensed acceleration reaches or exceeds a predetermined value, electrical power to the data receiver is enabled. The recorded acceleration data may be used for injury analysis.