ENV 41213-2 : DRAFT 1992

1 Scope and Conformity
  1.1 Conformity principles
  1.2 Relationship With Base Standard
  1.3 Relationship to the VT PICS Proforma
2 References
3 Supported VT PDUs
  3.1 Kernel
  3.2 Switch Profile Negotiation
  3.3 Urgent Data
  3.4 Break
  3.5 Additional VT functional units
4 VT PDU Parameters
  4.1 VT-P-ABORT (APQ)
  4.2 VT-ASSOCIATE-REQ (ASQ)
  4.3 VT-ASSOCIATE-RESP (ASR)
  4.4 VT-U-ABORT (AUQ)
  4.5 VT-BREAK-REQ (BKQ)
  4.6 VT-BREAK-RESP (BKR)
  4.7 VT-ACK-RECEIPT (DAQ)
  4.8 VT-DELIVER (DLQ)
  4.9 VT-GIVE-TOKENS (GTQ)
  4.10 VT-HIGH-PRI-DATA (HDQ)
  4.11 VT-DATA (NDQ)
  4.12 VT-RELEASE-REQ (RLQ)
  4.13 VT-RELEASE-RESP (RLR)
  4.14 VT-REQUEST-TOKEN (RTQ)
  4.15 VT-SWITCH-PROFILE-REQ (SPQ)
  4.16 VT-SWITCH-PROFILE-RESP (SPR)
  4.17 VT-URGENT-DATA (UDQ)
5 Lower Level Negotiation Elements
  5.1 Second and third level parameters - ASQ, SPQ, SNQ
  5.2 Second and third level parameters - ASR, SPR, SNR
  5.3 Third level parameters - CDS Offers
  5.4 Third level parameters - CDS Values
  5.5 Fourth level parameters for negotiation - common
       parameters

Defines the Virtual Terminal Protocol requirements for the support of the Virtual Terminal Functional Standard A/4117.