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Communication Port Configuration 
If the PC Handheld Programmer fails to connect to the blackbox unit you may 
need to change the communications port that is being used, to do this ‘right click’ 
on the PC Handheld Programmer keypad and a ‘pop up’ menu will appear 
allowing you to select the appropriate communications port.  
Handheld Communicator (Op
Handheld Communicator (OpHandheld Communicator (Op
Handheld Communicator (Optional)
tional)tional)
tional) 
  
 
The  optional  Handheld  communicator  can  be  used  to  programme  any 
number of blackbox  units and works in a similar  way to the PC Software. 
Connect the Handheld Communicator, with the cable supplied, to the RS232 
interface  via  the  RJ11  connector  located on the  terminal  connector,  inside 
the  blackbox  enclosure.  Once  connected  you  will  briefly  see  a  message, 
similar to that as seen when using the PC Software which, after connecting 
successfully,  will  then  change  to  display  the  current  measurement, 
dependent on mode and measurement unit's chosen.