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User Manual EPT USB To Serial 1 Meter Cable

 

                                                                                                             

 

 

 

Page 2

 

 

 

 

The EPT 232R-US-R1 adapter cable requires USB device drivers, available from 
www.earthpeopletechnology.com/resources/driver, which are used to make the EPT 232R-US-
R1 appear as a Virtual COM Port (VCP). This allows existing serial communications software, 
such as HyperSerialPort, to exchange data through the US232R to a legacy RS232 peripheral 
device. 

1.1

 

Block Diagram 

 

 

USB A Connector 

 

This connector provides the interface for connection to a USB Host or Hub port  

Cable 

 

The EPT 232R-US-R1 cable is available in length 1 meter.  

FTDI FT232R 

 

The FTDI FT232R chip provides the USB-to-Serial conversion. Operating system device drivers 
are required in order to work with the FT232R to provide the Virtual COM Port serial 
functionality.  

RS232 Level Shifter 

 

The RS232 level shifter converts the signals provided by the FT232R into the voltage levels 
required by RS232 devices.  

DB9 Connector (Male) 

 

The DB9 Male connector is configured in an industry standard (TIA/EIA-574) pin-out to provide 
connection to RS232 peripherals through standard cables. 

1.2

 

Cable Features 

 

Summary of Contents for EPT 232R-US-R1

Page 1: ...uit board which utilises the FTDI FT232R mounted inside a rugged plastic enclosure capable of withstanding industrial temperature ranges The integrated electronics also include RS232 level shifters an...

Page 2: ...vides the interface for connection to a USB Host or Hub port Cable The EPT 232R US R1 cable is available in length 1 meter FTDI FT232R The FTDI FT232R chip provides the USB to Serial conversion Operat...

Page 3: ...c OS X Linux and Windows CE device drivers Installs as a standard Windows COM port COM port number can be changed to any available COM port number including COM1 to COM4 to support HyperSerialPort or...

Page 4: ...from the USB host controller 2 4 Improved EMI Performance The reduced operating current and improved on chip VCC decoupling significantly improves the ease of PCB design requirements in order to meet...

Page 5: ...DCD Input Data Carrier Detect control input 2 RXDATA Input Receive Asynchronous Data input 3 TXDATA Output Transmit Asynchronous Data output 4 DTR Output Data Terminal Ready control output Handshake...

Page 6: ...aximum Units Conditions Vtrans Transmitter output voltage swing 5 V RL 3K Vrec Receiver input voltage range 2 4 25 V Input resistance 3K to 7K ESD HBM 15 kV RS 232 Inputs and Outputs Table 4 2 RS232 5...

Page 7: ...quipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one o...

Page 8: ...and received 7 2 Device Driver Ensure the latest device driver is in use See www earthpeopletechnology com resources drivers If other devices with FTDI chips are installed in the system check with al...

Page 9: ...ing the pointer to jump around the screen If this happens disconnect the RS232 device and uncheck the Serial Enumerator option also found on the Advanced driver options screen in Figure 2 13 COM PORT...

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