Exchange/RJE Manual

Retransmission Rejected (Processor to Terminal)

BSC Line Control

104698 Tandem Computers Incorporated C–11

Retransmission Rejected

(Processor-to-Terminal)

This figure shows the BSC line-control sequence between a terminal and a processor

during a transmission where the retransmission is rejected by the terminal.

007

Processor Station Terminal Station

ENQ

bid for line

STX

text (odd)

ETB

STX

text (odd)

ETB

Retry “n” times,

count determined by

processor program

STX

text (odd)

ETB

ACK 0

NAK

EOT