USR-N540 User Manual www.usriot.com
Jinan USR IOT Technology Limited 50 / 73 [email protected]
①
If there is no overflow, m bytes data must be transmitted within n seconds, then the transmitting time of M
bytes data:
If n >2T, then data will not overflow, USR-N540 can work normally. Just need keep n>T under baud rate 9600.
3.7.10.
Synchronous baud rate (RFC2217)
For encryption during data transmission, devices change data bytes, baud rate, parity and so on. USR-N540
supports revise serial parameter accordingly.
Synchronous baud rate is named RFC2217. USR Similar RFC2217 make adjustments on the basis of RFC2217
protocol to improve accuracy of transmission.
Protocol length is 8 bytes. And values taken for example is in HEX:
Name
Packet Header
Baud Rate
Bytes parameter
Parity
Bytes
3
3
1
1