User Guide to PL131
Document Number 1155-4713 Rev E
Page 29
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6.2.2 Example flow of communication
Server
Modem
File Message
Header
Server
File Message
Header
Ack
Send A Window
(7 Packets)
Ack
Send A Window
(7 Packets)
1. The file header is sent.
2. Once the modem acknowledges this header, 7 packets are sent to the modem.
3. Once those packets are acknowledged, another 7 packets are sent.
4. This continues until all packets are sent.
