RFX144V24-S23 and RFX96V24-S23 Modem Designer’s Guide
1070
9-27
MESSAGE, PAGE 0, BLOCK 0
PPS-NULL (TO INDICATE MORE BLOCKS FOR THIS PAGE WILL BE TRANSMITTED)
PPR (TO IDENTIFY FRAMES RECEIVED WITH ERRORS)
RETRANSMIT MESSAGE FRAMES IN ERROR, PAGE 0, BLOCK 0
PPS-NULL
MCF (TO INDICATE NO ERRORS, AND READY TO RECEIVE)
MESSAGE, PAGE 0, BLOCK 1
PPS-MPS (TO INDICATE END OF CURRENT PAGE, MORE PAGES TO TRANSMIT)
PPR (TO IDENTIFY FRAMES IN ERROR)
RETRANSMIT MESSAGE FRAMES IN ERROR, PAGE 0, BLOCK 1
PPS-MPS
RNR (INDICATES RECEIVER NOT READY)
RR (REQUEST RECEIVER STATUS)
RNR (RX STILL NOT READY)
RR
MCF (INDICATES NO ERRORS IN LAST MESSAGE, RX READY)
MESSAGE, PAGE 1, BLOCK 0
PPS-EOP (INDICATES END OF PROCEDURE, I.E., NO MORE PAGES TO TRANSMIT)
PPR (INDICATES FRAME ERRORS)
RETRANSMIT MESSAGE FRAMES IN ERROR, PAGE 1, BLOCK 0
PPS-EOP
PPR, 4TH REQUEST FOR RETRANSMISSION OF FRAMES IN ERROR
FOR PAGE 1, BLOCK 0
AFTER 4TH REQUEST FOR RETRANSMISSION OF ERRORED FRAMES ON THE SAME BLOCK,
THE TRANSMITTER MAY RESPOND WITH:
EOR-EOP (INDICATES END OF RETRANSMISSION [I.E., TX WILL NOT CORRECT
ANY MORE ERRORS FOR PAGE 1, BLOCK 0])
ERR (RX RESPONSE TO EOR-EOP)
DCN (TX DISCONNECTS)
CTC-EOP (INDICATES TX WILL CONTINUE TO CORRECT PAGE 1, BLOCK 0 ERRORS)
CTR (RESPONSE TO CTC-EOP)
RETRANSMIT MESSAGE FRAMES IN ERROR, PAGE 1, BLOCK 0
PPS-EOP
MCF (INDICATES RETRANSMISSION RECEIVED WITHOUT ERRORS)
DCN (DISCONNECT)
••• OR •••
1070F9-24 ECM Msg
Figure 9-24. ECM Message Protocol Example
Содержание RFX144V24-S23
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