Exchange/RJE Manual

Mismatched Acknowledgment

BSC Line Control

104698 Tandem Computers Incorporated C–15

Mismatched

Acknowledgment

This figure shows the BSC line-control sequence between two stations during a

transmission where the receiving station responds with the wrong acknowledgment.

011

Transmitting Station Receiving Station

STX

text (odd)

ETB

STX

text (even)

ETB

ACK 1

ENQ

ACK 1

ENQ

ACK 1

ENQ

ACK 1

EOT