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Transceiver module TRX433-10C2 / TRX868-10C2 (Vers. 1.0E) 11<br />
module 1<br />
module 2<br />
RS232, RxD-pin<br />
RF-transmission<br />
RS232, TxD-pin<br />
Byte 1<br />
Byte 2<br />
32 Bit<br />
Preamble<br />
+2ms<br />
Startup<br />
Byte 3<br />
24 Bit<br />
SYNC<br />
Byte 4<br />
Byte 1<br />
Byte 2<br />
Byte 3<br />
Byte 4<br />
start RF-transmission after<br />
first received RS232-byte<br />
CRC16<br />
Byte 1<br />
Byte 2<br />
Byte 3<br />
output after<br />
checked CRC16<br />
Figure 6 Dataflow with Fast send with CRC16, RF data rate > RS232-baud rate<br />
module 1<br />
module 2<br />
RS232, RxD-pin<br />
RF-transmission<br />
RS232, TxD-pin<br />
Byte 1<br />
Byte 2<br />
32 Bit<br />
Preamble<br />
+2ms<br />
Startup<br />
Byte 3<br />
24 Bit<br />
SYNC<br />
Byte 4<br />
Byte 1<br />
Byte 2<br />
Byte 3<br />
Byte 4<br />
start RF-transmission<br />
after first received RS232-byte<br />
Byte 1<br />
Byte 2<br />
Byte 3<br />
output after first<br />
received databyte<br />
Figure 7 Dataflow with Fast send without CRC16, RF data rate > RS232-baud rate<br />
module 1<br />
module 2<br />
RS232, RxD-pin<br />
RF-transmission<br />
RS232, TxD-pin<br />
Byte 1<br />
Byte 2<br />
Byte 3<br />
Byte 4<br />
2<br />
32 Bit<br />
Byte<br />
Preamble<br />
24 Bit<br />
+2ms Startup<br />
SYNC<br />
start RF-transmission after<br />
first received RS232-byte<br />
Byte 1<br />
Byte 1<br />
Byte 4<br />
Byte 2<br />
Byte 3<br />
Byte 3<br />
Byte 4<br />
output after first<br />
received databyte<br />
Figure 8 Dataflow with Fast send without CRC16, RF data rate < RS232-baud rate<br />
Byte 4<br />
Byte 4
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