Murata Electronics North America 5811M Manual Do Utilizador

 

© 2003 Cirronet

 Incorporated 

26 

M-5811-0008 Rev -

 

 

 

asserted will put the modem into sleep mode.  Some communications programs will attempt 
to communicate immediately after asserting DTR.  The base station will transmit this data, 
but the remote will not be synchronized with the base station and will not receive the 
transmission.  In this instance, do not connect the Sleep signal to DTR of the serial port. 
 

 
Provided with the developer’s kit is a simple communications program designed especially 
for the WIT5811.  The WinCOM program provides a simple command interface to the 
modems along with function key control for manipulating the serial port control lines and 
baud rates.  This program is designed to run under Windows®.  
 
WinCOM will automatically detect to which port and at which baud rate the HN-581 is 
communicating. These settings will be displayed.

 
Note that the data rate applies to the serial port of the computer.  This parameter has no effect 
on the modem.  If the modem is set for 115,200bps but WinCOM is invoked to run at 
921,600bps, the computer and the modem will be unable to communicate.   
 
 

 

Toggles state of DTR (Sleep).  State is shown in status line. 

 

 

Toggles state of RTS.  State is shown in status line. 

 

 Transmits 

“:

”.  Used to enter control mode. 

 

Toggles local echo.  If you are transmitting characters through one modem to 
another WIT5811, this allows you to see what you are typing. 

 

Transmits data string.  Causes WinCOM24 to transmit the data string entered 
in the data window a single time.  Useful for testing.

 

 

Toggles binary mode.  Displays extended ASCII and control characters.  
Useful for testing. 

  Sets data rate of PC serial port to next higher value.  Value is displayed in 

status line.  Useful when WinCOM is used to change the WIT5811 interface 
data rate.  WinCOM can communicate at new data rate without having to exit 
and re-enter WinCOM. 

  Sets data rate of PC serial port to next lower value.  Value is displayed in 

status line. 

 

The values of DTR (Sleep), RTS, DSR, CTS, DCD and the PC serial port rate are displayed 
in the status line at the bottom of the display. 
 

 
The procedure below provides a quick demonstration of the WIT5811. 
1.  Attach a transceiver to each computer, preferably between 5' and 30' apart for 

convenience.