TABLE OF CONTENTS

              PART II. REFERENCE
     
     Appendix AęLink Negotiation (Handshaking)
       and Error Control                
      Link Negotiation (Handshaking) A-1
        HST Mode                     A-1
        V.32 bis Mode                A-3
        Dual Standard Handshaking    A-5
      Error Control and Throughput   A-5
      CCITT V.42 Handshaking         A-6
      MNP Handshaking                A-6
      Data Compression               A-6
      Flow Control                   A-7
      Throughput Guidelines          A-7
       Achievable Throughput         A-9

     Appendix BęSummaries and Tables    
      The RS-232 Interface           B-2
      Front Panel Indicators         B-4
      DIP Switch Summary             B-6
      Default Settings               B-9
      S-Register Summary            B-12
      ASCII Chart                   B-21

     Appendix CęAlphabetical Command Summary 
      Basic Command Set              C-1
      Extended Command Set           C-6
      Percent Command Set           C-11

     Appendix DęProblems and SolutionsD-1    
      If You Still Have Problems     D-4

     Appendix EęAdditional Operations   
      Voice/Data                     E-2
      High Speed/Low Speed Protocol  E-5
      Dedicated Line and Leased Line Operation    
      E-8
      Hewlett Packard 3000 InstallationsE-11
      MI/MIC Operations             E-12

     Appendix FęModem Testing           
      Testing with &T                F-1
        Ending a Testę&T0, S18       F-1
        Analog Loopbackę&T1, &T8     F-2
        &T2                          F-4
        Digital Loopbackę&T3         F-4
        &T4, &T5                     F-5
        Remote Digital Loopbackę&T6, &T7F-5
      Testing with Register S16      F-8
        Analog LoopbackęS16=1D       F-8
        Dial TestęS16=2              F-9
        Test PatternęS16=4           F-9
        Remote Digital LoopbackęS16=8F-10

     Appendix GęGlossary             G-1

     Appendix HęTechnical SpecificationsH-1

     Index