IMP+ INSTRUCTION MANUAL 
 
28 
Using the RS232 Serial Interface 
The RS232 serial interface is used to communicate between the IMP+, and a 
PC using the optional Pulsar IMP PC software, this software is used to obtain 
information from the IMP+ so that echo traces can be viewed, parameters 
can be uploaded, downloaded, and saved. 
To do so, the settings for communications control are set as follows and 
cannot be changed: baud rate 19,200, 8 data bits, no parity, 1 stop bits.  
Connection between the IMP+ and the PC is made via RJ11 connector 
located under the lid of the IMP+.  
   
Important Notice 
When connecting to the RS232 (RJ11) port this will cause the IMP+ to draw 
20mA, this is necessary to ensure correct operation of the RS232.