Exchange/RJE Manual

Contents
104698 Tandem Computers Incorporated xi
Appendix C BSC Line Control
BSC Line-Control Characters C-1
The SYN Character C-1
The ENQ Character C-1
The ACK 0 Character C-1
The ACK 1 Character C-2
The STX Character C-2
The NAK Character C-3
The TTD Character C-3
The WACK Character C-3
The ETB Character C-4
The ETX Character C-4
The RVI Character C-5
The EOT Character C-5
The Pad Character C-5
BSC Line-Control Sequence Examples C-6
Normal Message Transmission C-6
Contention for the Line C-7
Unanswered Line Bid C-8
Retransmission Accepted (Terminal-to-Terminal) C-8
Retransmission Rejected (Terminal-to-Terminal) C-9
Retransmission Rejected (Terminal-to-Processor) C-10
Retransmission Rejected (Processor-to-Terminal) C-11
Transmission Delay (Receiver-Initiated) C-12
Transmission Error, Block Ignored by Receiving Station C-14
Mismatched Acknowledgment C-15
Data Link Aborted (No Response From Receiver) C-16
Data Link Stalemate (No Continuation by Transmitter) C-17
Failure at Transmitting Station C-17
Failure at Receiving Station C-18
Appendix D Example Programs
Send/Receive Program Example D-1
User-Exit Procedure Interface Specification D-19
User-Exit Procedure Example D-22