Information on MNP Class 4
MNP Class 4·is one of the error correction
and data compression protocols developed by the modem manufacturer Microcom.
Class 4 ·implemented:
- Adaptive size packet assembly: the
size of data packets is adjusted according to the quality
of the line to avoid errors and retransmissions
- Data phase packet
format optimisation: eliminates the portions of the overhead or framing
bytes in the data packets that do not change during
Implementation of MNP Class 4 protocols can
increase transmission efficiency by up to 20%.
Other topics in our resources on Modems related to MNP Class 4 include:
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