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Download PDT 1100 Terminal Programmer`s Guide
Transcript
Communications below. If the sending station receives an ACK before receiving a NAK 10 times in succession, it continues the subsequent message transmission. Sending Station Data Text m Receiving Station NAK Data Text m NAK Data Text m ACK Data Text m+1 Figure M-10. Phase 2 with NAK If the sending station receives a NAK 10 times in succession or it fails to send a same transmission block, it proceeds to phase 3 to terminate the message transmission. Even if the Phase 3 terminates normally, the transmission is aborted. Sending Station Data Text m(1) Receiving Station NAK Data Text m(2) NAK Data Text m(10) NAK Occurrence of an error To phase 3. 35864059.eps Figure M-10. Phase 3 Termination M-13
