Fiber optic data link system

• US 5,267,069 A
• Filed: 09/15/1992
• Issued: 11/30/1993
• Est. Priority Date: 03/21/1989
• Status: Expired due to Term

• Current Assignee: 3M Company
• Original Assignee: 3M Company
• Inventors: Yungers, Christopher R., Griffin, Michael E.
• Primary Examiner(s): Chilcot, Jr., Richard E.
• Assistant Examiner(s): NEGASH, KINFE MICHAEL
• Application Number:
  US07/946,007
• Time in Patent Office: 441 Days
• Field of Search: 359/135, 359/136, 359/137, 359/118, 359/110, 359/155, 359/177, 359/180, 359/189, 370/110.1, 370/94.1, 370/60
• US Class Current: 398/98
• CPC Class Codes: H04L 69/323 in the physical layer [OSI layer 1]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

Apparatus for use with a fiber optic data channel includes a configuration block that determines the configuration of a communication port associated with the apparatus. The apparatus further includes multiplexer/transmitter for transmitting data and configuration information to a distant apparatus and a receiver/demultiplexer for receiving data and configuration information from the distant apparatus.

Claims

1. Apparatus for use with a fiber optic data channel and apparatus being adapted to be connected to a local communication port having a plurality of signal lines each of which is able to assume a plurality of digital states, said apparatus comprising:

multiplexer/transmitter means for multiplexing data into data packets and transmitting said data packets, said transmitted data packets including configuration data packets and message data packets;

configuration means for detecting the configuration of said local communication port and providing information about said configuration to said multiplexer/transmitter for construction of said configuration data packets said configuration means further configuring said apparatus for proper operation with said local communication port; and

receiver/demultiplexer means for receiving data packets and demultiplexing said received data packets, said received data packets including configuration data packets and message data packets, said receiver/;

demultiplexer sending data from said received configuration data packets to said configuration means and data from said received message data packets to said local communication port.

2. The apparatus of claim 1 wherein said configuration means includes means for monitoring one of said signal lines of said local communication port for a change of digital states.

3. The apparatus of claim 1 wherein said configuration means includes means for attempting to force one of said signal lines of said local data port to change digital states.