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Cleveland Medical Devices Inc.                   RatPaak™ User’s Guide
 
 
 
Connecting the Receiver 
1.  Connect the Receiver to a laptop or desktop computer using the Receiver data cable. The small end of 
the 3-foot cable fits into the jack on the bottom of the Receiver.  You will hear two clicks when the 
connector is properly attached.  The 9-pin end fits into your computer’s available RS-232 serial port.  
Use the 6-foot DB-9 extension to add length to the 3-foot cable. 
 
Note which port is used; (COM1, COM2, etc.) for configuration of the software.  Refer to your PC’s 
manual for information on setting up COM ports. 
 
If the only available port is a 25-pin port, you will need to use a 25-9 pin adaptor (not provided but 
available at most electronic stores). 
 
2.  Power the Receiver by plugging in the AC adapter power cord (primary power source, typically used 
for desktop applications), or  attaching a 9-volt battery via the 9-volt battery adapter wire plug 
(typically used for mobile laptop applications) 
 
 
Power Mains Interruptions  
If the user of the RatPaak™ requires continued operation during power mains interruptions, it is 
recommended that the RatPaak™ Receiver be used in conjunction with a laptop instead of a desktop 
computer.  A laptop can continue processing the data for extended periods of time through power main 
interruptions or in stand-alone remote situations.  (Refer to the laptop’s manual for more specific details 
on the length of duration of its batteries.)  For reliable data collection in a laboratory setting, the 
RatPaak™ Receiver and personal computer can be powered from an uninterruptible power supply 
(UPS).  The usage of a UPS will only enable continued monitoring of patient signals during power 
mains interruptions and not extended power loss.  If there is a power loss the UPS will signal the 
operator and a controlled suspension of patient monitoring and the closing of recorded data can be 
performed. 
Transmitter Characteristics 
 
 
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