Definition - What does Adaptive Packet Assembly (APA) mean?
Adaptive packet assembly (APA) is an error control technique applied to modems to increase line fault tolerance and facilitate split data packet transmission at short intervals. APA works with other modem error control techniques to improve modem transmission quality.
Data packets usually split with increased line noise, thereby reducing required retransmission time. However, when lines are not as noisy and transmissions are unaffected, packets are transmitted as larger units, which facilitates faster data transmission rates (DTR).