Version List

Transceiver module TRX433-10C2 / TRX868-10C2 (Vers. 1.0E) 10
Examples of data flow
Following, there are some examples by which you can see the data flow by different configuration of Fast
send, CRC16, Handshake etc.
Examples for different configuration of fast send and CRC16
Refer to the figure for the data flow which depends on the configuration of Fast send and CRC16. Thereby,
module 1 is used as transceiver and module 2 is used as receiver. Of course several modules with the same
configuration as the transceiver can receive the data signal.
module 1
module 2
RS232, RxD-pin
RF-transmission
RS232, TxD-pin
Byte 1
Byte 2
Byte 3
Byte 4
start RF-transmission
after 2-3 bytes break
32 Bit
Preamble
+2ms
Startup
24 Bit
SYNC
Length
Byte 1
Byte 2
Byte 3
Byte 4
CRC16
Figure 3 Dataflow without Fast send with CRC16, RF data rate > RS232-baud rate
module 1
module 2
RS232, RxD-pin
RF-transmission
RS232, TxD-pin
Byte 1
Byte 2
Byte 3
Byte 4
start RF-transmission
after 2-3 bytes break
32 Bit
Preamble
+2ms
Startup
24 Bit
SYNC
Length
Byte 1
Byte 2
Byte 3
Byte 4
Byte 1
Byte 2
Byte 1
Byte 3
output after first
received databyte
Figure 4 Dataflow without Fast send without CRC16, RF data rate > RS232-baud rate
module 1
module 2
RS232, RxD-pin
RF-transmission
RS232, TxD-pin
Byte 1
Byte 2
Byte 3
Byte 4
start RF-transmission
after 2-3 bytes break
2
32 Bit
Byte
Preamble
24 Bit
+2ms Startup
SYNC
Figure 5 Dataflow without Fast send without CRC16, RF data rate < RS232-baud rate
Length
Byte 1
Byte 1
Byte 2
Byte 3
Byte 3
Byte 4
Byte 4
output after first
received databyte
Byte 2
Byte 3
output after
checked CRC16
Byte 4
Byte 4