System and method for connection of multiple protocol terminals

• US 5,568,525 A
• Filed: 08/19/1993
• Issued: 10/22/1996
• Est. Priority Date: 08/19/1993
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Haymes, Charles L., de Nijs, Richard H. J., Ulmer, Dale T.
• Primary Examiner(s): Chin, Stephen
• Assistant Examiner(s): Webster, Bryan E.
• Application Number:
  US08/109,185
• Time in Patent Office: 1,160 Days
• Field of Search: 375/106, 375/107, 375/108, 375/359, 370/100.1, 370/103, 370/105.2, 370/95.1, 370/95.3, 370/85.1, 370/85.5, 370/85.12, 370/85.14
• US Class Current: 375/356
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A network port configurator device for automatically configuring a system having network workstations and corresponding network equipment of various physical protocols. The network port configurator comprises a plurality of input and output ports for receiving physical wiring to which the workstations and network equipment are attached. Detection circuitry attached to the input and output ports determine the physical protocol of the attached workstations and network equipment by determining a characteristic of the attached equipment. Examples of identifying characteristics include a characteristic impedance, a characteristic voltage, and a characteristic cable identification of the workstation. Logic circuitry uses this information to control a circuit switching mechanism that connects the input ports to the output ports.

Claims

1. For use with a plurality of network workstations and a plurality of network equipment, each workstation and each network equipment being a protocol type of a set of protocol types, a system for automatically connecting a workstation of a particular protocol type with a network equipment of the same protocol type, each workstation of a particular protocol type having a unique physical characteristic as compared to workstations of other protocol types, said system comprising:

a plurality of workstation ports for connecting to one or more workstations;

a plurality of network equipment ports for connecting to one or more network equipment, at least one of said one or more network equipment being of the same protocol type as at least one of said one or more workstations;

means connected to said workstation ports for determining the protocol type of said set of protocol types of each of said workstations connected to said workstation ports by determining said unique physical characteristic of said workstation, said protocol determining means generating an output indicative of each said protocol type; and

means, connected between said workstation ports and said network equipment ports, for establishing connections between said workstation ports and said network equipment pens, said establishing connections means being responsive to said protocol determining means output.

2. The system defined in claim 1 wherein said unique physical characteristic is a characteristic impedance and said protocol determining means comprises an impedance detection means for detecting the characteristic impedance of said workstations.

3. The system defined in claim 1 further comprising means connected to said network equipment ports for determining the protocol type of said network equipment, said network equipment protocol determining means generating an output indicative of said network equipment protocol and means, connected between said workstation ports and said network equipment ports, for establishing connections between said workstation ports and said network equipment ports, said establishing connections means being responsive to said network equipment protocol determining means output.

4. The system defined in claim 3 wherein said unique physical characteristic is a characteristic impedance and said network equipment protocol type determining means comprises a detection circuit for determining the characteristic impedance of said network equipment.

5. The system defined in claim 1 wherein said connection establishing means is responsive to said protocol determining means output so that a workstation of a particular protocol type is connected with a network equipment of the same protocol type.

6. For use with a system for configuring networks, said networks comprising a plurality of network workstations and a plurality of network equipment, each workstation and each network equipment being a protocol type of a set of protocol types, a method for automatically connecting a workstation of a particular protocol type with a network equipment of the same protocol type, each workstation of a particular protocol type having a unique physical characteristic as compared to workstations of other protocol types, said method comprising the steps of:

determining the protocol type of said set of protocol types of a first workstation by determining said unique physical characteristic of said workstation, said protocol determining means generating an output indicative of said protocol type; and

establishing a connection, based upon said output, between said first workstation and a network equipment having the same protocol type of said set of protocol types as said first workstation.

7. The method defined in claim 6 wherein said unique physical characteristic is a characteristic impedance and said protocol type determining step comprises the step of detecting the characteristic impedance of said first workstation.

8. The method defined in claim 6 further comprising the steps of determining the protocol type of said network equipment, generating an output indicative of said network equipment protocol type and establishing connections between said workstation ports and said network equipment ports based upon said network equipment protocol type output.

9. The method defined in claim 8 wherein said unique physical characteristic is a characteristic impedance and said network equipment protocol type determining step comprises the step of determining the characteristic impedance of said network equipment.

10. An automatically reconfigurable network comprising:

a plurality of network workstations and a plurality of network equipment, each workstation and each network equipment being a protocol type of a set of protocol types, each workstation of a particular protocol type having a unique physical characteristic as compared to workstations of other protocol types;

means connected between said workstations and said network equipment for automatically connecting a workstation of a particular protocol type of said set of protocol types with a network equipment of the same protocol type of said set of protocol types comprising a plurality of workstation ports for connecting to one or more workstations, a plurality of network equipment ports for connecting to one or more network equipment, at least one of said one or more network equipment being of the same protocol type as at least one of said one or more workstations, means connected to said workstation ports for determining the protocol type of said one or more workstations by determining said unique physical characteristic of each said one or more workstations, said protocol determining means generating an output indicative of said protocol type, and means, connected between said workstation ports and said network equipment ports, for establishing connections between said workstation ports and said network equipment ports, said establishing connections means being responsive to said protocol determining means output.

11. The network defined in claim 10 wherein said unique physical characteristic is a characteristic impedance and said protocol determining means comprises an impedance detection means for detecting the characteristic impedance of said workstations.

12. The network defined in claim 10 further comprising means connected to said network equipment ports for determining the protocol type of said network equipment, said network equipment protocol determining means generating an output indicative of said network equipment protocol and means, connected between said workstation ports and said network equipment ports, for establishing connections between said workstation ports and said network equipment ports, said establishing connections means being responsive to said network equipment protocol determining means output.

13. The network defined in claim 12 wherein said unique physical characteristic is a characteristic impedance and said network equipment protocol type determining means comprises a detection circuit for determining the characteristic impedance of said network equipment.

14. The network defined in claim 10 wherein said connection establishing means is responsive to said protocol determining means output so that a workstation of a particular protocol type is connected with a network equipment of the same protocol type.

15. For use with a plurality of network workstations and a plurality of network equipment, each workstation and each network equipment being a protocol type of a set of protocol types, and a switch for connecting said workstations with said network equipment, a system for determining the particular protocol type of said set of protocol types of each workstation so that a workstation of a particular protocol type may be connected by said switch with a network equipment of the same protocol type, each workstation of a particular protocol type having a unique physical characteristic as compared to workstations of other protocol types, said system comprising:

a plurality of workstation ports for connecting to one or more workstations; and

means connected to said workstation ports for determining the protocol of said one or more workstations based upon said unique physical characteristic of each workstation, said protocol determining means generating an output to said switch indicative of said protocol type.

16. The system defined in claim 15 wherein said unique physical characteristic is a characteristic impedance and said protocol determining means comprises an impedance detection means for detecting the characteristic impedance of said workstations.

17. The system defined in claim 15 wherein said unique physical characteristic is a characteristic voltage and said protocol determining means comprises a voltage detection means for detecting a characteristic voltage of said workstations.

18. The system defined in claim 15 wherein said unique physical characteristic is a characteristic cable identification and said protocol determining means comprises a cable identification detection means for detecting a characteristic cable identification of said workstations.

19. For use with a plurality of network workstations, each workstation being a protocol type of a set of protocol types, a system for automatically connecting a workstation of a particular protocol type with another workstation of the same protocol type, each workstation of a particular protocol type having a unique physical characteristic as compared to workstations of other protocol types, said system comprising:

a plurality of workstation ports for connecting to one or more workstations;

means connected to said workstation ports for determining the protocol type of said set of protocol types of each of said workstations connected to said workstation ports by determining said unique physical characteristic of said workstation, said protocol determining means generating an output indicative of each said protocol type; and

means, connected to said workstation ports, for establishing connections between said workstation ports, said establishing connections means being responsive to said protocol determining means output.

20. The system defined in claim 19 wherein said establishing connections means establishes connections between workstations having the same protocol type.