X25AM Programming Manual

Contents
X25AM Programming Manual—527201-001
vii
Figures
Figures
Figure 1-1. Call Setup, Data Transfer, and Call Clearing 1-3
Figure 1-2. DTE Address, Port Number, and Called Address 1-4
Figure 1-3. DTE Address, Multiple Port Numbers, and Called Addresses 1-4
Figure 1-4. DTE Address, Port Numbers, Subdevices, and Called Address 1-5
Figure 1-5. Call Setup Packet Format 1-7
Figure 2-1. High-Level View of the Application and X25AM 2-2
Figure 2-2. The Packet Assembler/Disassembler 2-7
Figure 2-3. Two Kinds of PADs 2-8
Figure 2-4. X.3, X.25, X.28, X.29, and the PAD 2-9
Figure 2-5. Data Packet Transfer with No Packet Blocking 2-15
Figure 2-6. Data Packet Transfer with Packet Blocking 2-15
Figure 2-7. Result of Issuing SETMODE 22 2-30
Figure 3-1. An Overview of the PTP Protocol 3-1
Figure 3-2. Buffer Formats and Packet Formats for Data Mode 2 3-13
Figure 3-3. Loopback Configuration 3-61
Figure 4-1. X3PAD Interface and the X25AM Subsystem 4-2
Figure 4-2. X3PAD Call Request Packet Format 4-7
Figure 5-1. Error Generation 5-1
Figure A-1. Result of Issuing SETMODE 22 A-5
Tables
Table 1-1. File-system Procedures Used in an X25AM Application 1-2
Table 1-2. Controller Types and Supported Modem Interfaces 1-20
Table 2-1. Guardian File-System Procedures Supported by ITI for G-Series
RVUs 2-2
Table 2-2.
Terminal Types Supported by ITI 2-3
Table 2-3.
Escape Codes for Page Mode Input/Output Operations 2-5
Table 2-4. PAD Parameters Set by ITI 2-11
Table 2-5. Default Interrupt Characters 2-17
Table 2-6. The Disposition of Terminal Characters by ITI 2-18
Table 2-7. X.3 Parameter 21 Values 2-20
Table 2-8. Parameter 22 Values and Bits per Second 2-29
Table 2-9. Acceptable Line-Termination Characters 2-33
Table 2-10. SETMODE Functions Not Supported by ITI 2-34
Table 2-11. Page-Mode Error Counters 2-36
Table 2-12. Reasons for Circuit Disconnection (SETPARAM 9) 2-37
Table 2-13. Reasons for Redirection or Deflection 2-43
Table 2-14. Reasons for Called Address Modification 2-44