Electrical transmission or interconnection systems – Switching systems
Patent
1990-09-27
1992-08-18
Gaffin, Jeffrey A.
Electrical transmission or interconnection systems
Switching systems
375 36, H04L 1200
Patent
active
051401720
ABSTRACT:
A user-friendly interface module which makes possible a simple structural attachment to a standardized bus interface having good suppression of interferences as well as a non-volatile termination of a two-wire line bus. The interface module includes a housing with an external ground terminal clip and four terminals. The interface module also includes a resistive divider to terminate the two-wire line bus as well as a multicore cable. Communication is established, for example with a microprocessor, via the multicore cable. The interface module can be used in a network system with programmable controllers.
REFERENCES:
patent: 4736394 (1988-04-01), Giovanelli et al.
patent: 4882554 (1989-11-01), Akaba et al.
Elektronik, vol. 35, No. 19, Sep. 19, 1986, Munchen, DE, pp. 146-154; R. Wilson: "Hochleistungsnetze Fur Peripheriegerate-Aufbau von SCSI- und IPI-Schnittstellen mit RS-485 Transceivern".
Elektronik, vol. 36, No. 13, Jun. 26 1987, pp. 86-94, Munchen, DE; A. Djenguerian: "Praktisher Aufbau Eines Ethernet-/Cheapernet-Anschlussknotens".
IBM Technical Disclosure Bulletin, vol. 24, No. 8, Jan. 1982, pp. 4041-4042; New York, US, R. Keller et al.: "Local Attachment of a Station to a Ring Network Through a Distribution Panel and a Coaxial Cable".
Gaffin Jeffrey A.
Siemens Aktiengesellschaft
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