USR-GPRS232-730 User Manual
Jinan USR IOT Technology Limited
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4.2.1.21. AT+CNUM
function : query the MS ISDN related to the subscriber.
format :
query current value of parameter:
AT+CNUM{CR} or AT+CNUM?{CR}
{CR}{LF}+CNUM:phone number{CR}{LF}{CR}{LF}OK{CR}{LF}
parameter :
phone number : phone number
4.2.1.22. AT+UART
function : query/set serial port parameters.
format :
query parameter introductions:
AT+UART=?{CR}
{CR}{LF}+UART:<2400,4800,9600,14400,19200,28800,33600,38400,57600,115200,230400,460800,
921600>,<"NONE","ODD","EVEN">,<7,8>,<1,2>,<"NONE","CRTS","RS485">{CR}{LF}{CR}{LF}OK{
CR}{LF}
query current value of parameter:
AT+UART{CR} or AT+UART?{CR}
{CR}{LF}+UART:baud,parity,data bit,stop bit,flow control{CR}{LF}{CR}{LF}OK{CR}{LF}
set parameter:
AT+UART=baud,parity,data bit,stop bit,flow control{CR}
{CR}{LF}OK{CR}{LF}
parameter :
baud : baud rate
2400,4800,9600,14400,19200,28800,33600,38400,57600,115200,230400,460800,921600
parity :
“NONE” : no parity
“ODD” : odd parity
“EVEN” : even parity
data bit :
7 : 7 data bits
8 : 8 data bits
flow control :
“NONE” : no flow control
“CRTS” : use RTS/CTS for flow control
“RS485” : enable RS485 function
