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• CCITT Rec. V.11 (11/1988) – ELECTRICAL CHARACTERISTICS FOR BALANCED DOUBLE-CURRENT INTERCHANGE CIRCUITS FOR GENERAL USE WITH INTEGRATED ...
• 1 Introduction
• 2 Field of application
• 3 Symbolic representation of interchange circuit (Figure 2/V.11)
• 4 Generator polarities and receiver significant levels
  • 4.1 Generator
  • 4.2 Receiver
• 5 Generator
  • 5.1 Resistance and d.c. offset voltage
  • 5.2 Static reference measurements
  • 5.3 Dynamic voltage balance and rise time measurements (Figure 5/V.11)
• 6 Load
  • 6.1 Characteristics
  • 6.2 Receiver input voltage - current measurements (Figure 6/V.11)
  • 6.3 D.c. input sensitivity measurements (Figure 7/V.11)
  • 6.4 Input balance test (Figure 8/V.11)
  • 6.5 Terminator
• 7 Environmental constraints
• 8 Circuit protection
• 9 Detection of generator power-off or circuit failure
• 10 Measurements at the physical interchange point
  • 10.1 Listing of essential measurements
  • 10.2 Listing of optional measurements
• ANNEX A – Compatibility with other interfaces
• A.1 Compatibility of Recommendation V.10 and Recommendation V.11 interchange circuits in the same interface
• A.2 Recommendation V.11 interworking with Recommendation V.10
• A.3 Recommendation V.11 interworking with Recommendation V.35
• APPENDIX I – Cable and termination
• I.1 Cable
• I.2 Cable length
• I.3 Cable termination
• APPENDIX II – Multipoint operation
• Reference