Automatic ID assigning device for network instruments
First Claim
1. An automatic ID assigning device for network instruments in a LAN system for managing a network system through exchanges of management information between respective network instruments in the LAN system, the device comprising:
- a master LAN instrument, including a connecting number table having a management data line and a separate packet-passing data line, for transmitting management data and managing respective LAN instruments connected to every port of the master LAN instrument, and communication means for assigning respective ID numbers to each of slave LAN instruments connected to the master LAN instrument; and
a plurality of slave LAN instruments respectively connected to the master LAN instrument,each of the slave LAN instruments including an upper LAN connecting port connectable with the management data line and an under LAN connecting port connectable with the management data line, control means for connecting and disconnecting the upper LAN connecting port to and from the under LAN connecting port, and means for disconnecting the management data line of the upper and under LAN instrument ports when an ID has not yet been assigned to the slave LAN instrument, andthe master LAN instrument including means for transmitting ID numbers for identifying respective slave LAN instruments as ID assigning command signals on the management data line, making reference to the connecting number table for every port of the slave LAN instrument, whereinthe slave LAN instruments respectively include means for receiving the ID assignment command signals and storing a received ID number as a self ID while transmitting a self ID assignment acknowledging signal through the upper LAN connecting port to the master LAN instrument, and connecting the management data line to the upper and under LAN connecting ports, andthe master LAN instrument includes means for updating, when a self ID assignment acknowledging signal is received, the connecting number table, and transmitting to the management data line a further ID assigning command signal containing another ID number for identifying another slave LAN instrument, and repeating transmission of the ID assigning command signals to automatically assign ID numbers to respective slave LAN instruments.
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Accused Products
Abstract
An automatic ID assigning device for LAN instruments connected in a network assigns ID numbers from a master LAN instrument to respective slave LAN instruments connecting sequentially to the master LAN instrument. A first slave LAN instrument stores, as its own self ID, an ID number supplied in an ID assignment command signal supplied from the master LAN instruments through a data line connecting ports of respective slave LAN instruments. The slave LAN instrument returns an ID assignment acknowledging signal to the master LAN instrument and connects upper and lower ports of the slave LAN instrument together. The master LAN instrument updates a connecting number table of the ports of the slave IDs upon receipt of the assignment acknowledging signals and transmits a subsequent ID assigning command signal to another slave LAN instrument through the data line and through the connected ports of slave LAN instruments to which ID numbers have already been assigned. The upper and lower ports, i.e., the input and output administrative data lines, of the slave LAN instruments to which ID numbers have not yet been assigned are not connected to each other.
41 Citations
13 Claims
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1. An automatic ID assigning device for network instruments in a LAN system for managing a network system through exchanges of management information between respective network instruments in the LAN system, the device comprising:
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a master LAN instrument, including a connecting number table having a management data line and a separate packet-passing data line, for transmitting management data and managing respective LAN instruments connected to every port of the master LAN instrument, and communication means for assigning respective ID numbers to each of slave LAN instruments connected to the master LAN instrument; and a plurality of slave LAN instruments respectively connected to the master LAN instrument, each of the slave LAN instruments including an upper LAN connecting port connectable with the management data line and an under LAN connecting port connectable with the management data line, control means for connecting and disconnecting the upper LAN connecting port to and from the under LAN connecting port, and means for disconnecting the management data line of the upper and under LAN instrument ports when an ID has not yet been assigned to the slave LAN instrument, and the master LAN instrument including means for transmitting ID numbers for identifying respective slave LAN instruments as ID assigning command signals on the management data line, making reference to the connecting number table for every port of the slave LAN instrument, wherein the slave LAN instruments respectively include means for receiving the ID assignment command signals and storing a received ID number as a self ID while transmitting a self ID assignment acknowledging signal through the upper LAN connecting port to the master LAN instrument, and connecting the management data line to the upper and under LAN connecting ports, and the master LAN instrument includes means for updating, when a self ID assignment acknowledging signal is received, the connecting number table, and transmitting to the management data line a further ID assigning command signal containing another ID number for identifying another slave LAN instrument, and repeating transmission of the ID assigning command signals to automatically assign ID numbers to respective slave LAN instruments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An automatic ID assigning device for network instruments in a LAN system for administering the LAN system through exchanges of administrative data between respective network instruments in the LAN system, the device comprising:
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a master LAN instrument having at least one port that includes a packet-passing data line and an administrative data line for communication of administrative data; and at least one slave LAN instrument connected to the master LAN instrument through the at least one port, the master LAN instrument including a connecting number table for administering the at least one slave LAN instrument connected to the at least one port, and communication means for assigning an ID number to the at least one slave LAN instrument, the slave LAN instrument including upper and lower LAN connecting ports including, respectively, a LAN data line and an administrative data line, control means for connecting and disconnecting the upper and lower LAN connecting ports to and from each other, and means for disconnecting the administrative data line from the upper and lower LAN connecting ports when an ID number has not yet been assigned to the at least one slave LAN instrument, the master LAN instrument including means for transmitting ID numbers for identifying respective slave LAN instruments as ID assigning command signals through the administrative data line by reference to the connecting number table, the at least one slave LAN instrument including means for receiving the ID assignment command signal, storing a received ID number as a self ID, transmitting a self ID assignment acknowledging signal through the upper LAN connecting port to the master LAN instrument, and connecting the administrative data line to the upper and lower LAN connecting ports, and the master LAN instrument including ID number assigning means for automatically assigning an ID number to the at least one slave LAN instrument by updating, upon receipt of the self ID assignment acknowledging signal from the at least one slave LAN instrument, the connecting number table with respect to the at least one port through which the self ID assignment acknowledging signal is received, and transmitting to the administrative data line another ID assigning command signal containing another ID number for identifying, when provided, another slave LAN instrument. - View Dependent Claims (10, 11, 12, 13)
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Specification