6100 ADCCP Programming Manual

Contents
viii 069225 Tandem Computers Incorporated
Section 5 Writing Applications that Use ADCCP/X21
Application Tasks 5-1
Opening the Line 5-1
Setting Line Options 5-1
Setting ADCCP Line Options 5-2
Setting X.21 Line Options 5-2
Preparing for Asynchronous Messages 5-2
Starting the X.21 Link 5-2
Requesting or Canceling Optional X.21 Network Facilities 5-3
Making an X.21 Circuit-Switched Connection 5-3
Inserting a Selection Signal Sequence 5-3
Anticipating the Netinfo Sequence 5-4
Making an X.21 Leased-Line Connection 5-4
Preparing for Unexpected Disconnects 5-6
Performing ADCCP Tasks 5-6
Clearing the X.21 Connection 5-6
Closing the Line 5-7
Error Recovery 5-7
Section 6 Requests and Responses
(1) SET CONFIGURATION 6-2
Request 6-2
Response 6-8
(2) FETCH CONFIGURATION 6-9
Request 6-9
Response 6-9
(3) START TRACE 6-11
(4) STOP TRACE 6-12
(5) FETCH STATISTICS 6-13
Request 6-13
Response 6-13
(6) START OPERATION 6-16
Request for ADCCP 6-16
Response for ADCCP 6-16
Request for X.21 6-16
Response for X.21 6-17