CONTENTS

1 Scope
2 References
3 Definitions
4 Physical layer
4.1 Necessary serial interface circuits
4.2 Represented circuits
5      Serial port considerations
5.1 Serial port rate
5.2 Serial port rate when used in command state
5.3 Flow control interactions
5.4 Data stream errors
6      In-band control procedures
6.1 Basic mode transparency
6.2 In-band command execution
6.3 DTE-to-DCE data streams
6.4 DCE-to-DTE data streams
7 7-bit in-band command definitions
7.1 V.24 status reporting
7.2 In-band commands sent by the DTE to DCE
7.3 In-band commands sent by the DCE to DTE
7.4 Extended in-band commands sent from DTE to DCE
7.5 Extended in-band commands sent from DCE to DTE
7.6 In-band service control
7.7 Overall service control
7.8 Individual status control
7.9 V.25 ter formatted syntax for control of in-band Control, +IBC
7.10 In-band MARK Idle Reporting Control, +IBM
8 8-bit commands: Synchronous data modes
8.1 Synchronous modes enable
8.2 Synchronous access mode configuration
8.3 Synchronous Mode Indication
8.4 Transmit Flow Control Thresholds
8.5 Synchronous Access Mode In‑Band Commands and Indications
8.6 Synchronous Mode Operation
8.7 Frame Tunnelling Mode Operation
8.8 Synchronous Access Mode Operation
8.9 Examples
Appendix I  Configuring the DTE‑DCE Interface in Synchronous Access Mode for Multimedia Applications
I.1 Minimum DTE‑DCE data signalling rate
I.2 Flow control thresholds and buffer contents reporting