Abstract: This supplement to 8802-4 : 1990 [802.4-1990] provides a recommendation for employing diversity in the Physical Layer of token-passing bus systems conforming to 8802-4 : 1990 for local and metropolitan area networks.
Keywords: local area networks, metropolitan area networks, physical layer diversity, redundant media control unit, token-passing bus access method
Content
1. Introduction to Supplement
1. Introduction and Overview
2. LLC-MAC Interface Service Specifications
3. MAC Sublayer Management
4. Frame Formats
5. Elements of MAC Sublayer Operation
6. MAC Sublayer Definitions and Requirements
7. Access Control Machine (ACM) Description
8. MAC Sublayer-Physical Layer Interface Service Specification
9. Physical Layer Entity (PLE) Management
9.3 Additional Management.
10. Exposed DTE-DCE Interface
11. Physical Layer Diversity
11.1 Introduction and Overview.
11.2 Basic Method.
11.2.1 Timing Considerations.
11.2.2 Receiver Functions.
11.2.3 Transmitter Functions.
11.2.4 Specific Requirements.
11.2.5 Fault Detection.
11.3 Labeling
11.3.1 Media.
11.3.2 Modems.
11.4 Passive Combining.
12. Single-Channel Phase-Coherent-FSK Bus Physical Layer Entity (PLE)
13. Single-Channel Phase-Coherent-FSK Bus Medium
13.7.1 Max_skew_delay Considerations.
14. Broadband Bus Physical Layer Entity (PLE)
15. Broadband Bus Medium
15.7.1 Max_skew_delay Considerations.
16. Fiber Optic Physical Layer Entity (PLE)
17. Fiber Optic Medium
17.7.1 Max_skew_delay Considerations.
18. Single-Channel Phase-Continuous-FSK Bus Physical Layer Entity (PLE)
19. Single-Channel Phase-Continuous-FSK Bus Medium
