C50- PARALLEL PORT INTERFACE CARD Rev. 1 User ... - CNC4PC

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C50 (Rev. 1) User Manual4.1 Using configuration jumper.4.1.1 Using the COM configuration jumper.There is a jumper that allows you toselect +5VDC or GND for the COMpins.1-2: COM= GND2-3: COM= +5VDC4.1.2 Using the Pull-up or Pull-down selection jumper for pins 10,11, 12, 13 and 15.That jumper allows change the inputconfiguration for pins 10, 11, 12, 13 and 15.Using the Pull-up or Pull-down selectionjumpers for those pins will pull them up ordown through a 4.7Kohm resistor:1-2: PULL-DOWN2-3: PULL-UP4.1.3 Enable pin.The card must be provided with a 5VDC signal to enable operation. This featurehas been added to externally control the status of the outputs and inputs 11, 12, 13and 15. NOTE: Only Pin 10 will be not affected by the status of the Enable pin.An external switch or a Safety Charge Pump can be added to provide the enablingsignal. When the enable signal is not present, output and inputs signals sent highimpedance state. If this function is not required, an jumper can be placed between+5vdc and the EN terminal. It has an internal 4.7kOhm pull-down resistor.Revision: 4/16/2012 http://cnc4pc.com/TechDocs/C50R1_User_Manual.pdf 4/14
C50 (Rev. 1) User ManualWiring:The Parallel Port InterfaceCard has a very basicdesign that provides theflexibility you look for onCNC projects.WARNING: This card must have the power supplied while it is connected tothe PC. If power is removed to the card while it is connected to the PC, noise canbe introduced to the output lines. This can create a dangerous situation as relaysor other devices that might be connected to this card could get activated.5. Connection instructionsRequirements:It requires a 5VDC @ 250 milliamps power supply to operate. This power can betaken from the computer’s power supply or USB port. Consider using the A3 – USBPower Cable found under Accessories in this website.WARNINGCheck the polarity and voltage of the external power source and connect the 5Vand GND. Overvoltage or reverse-polarity power applied to these terminals cancause damage to the board, and/or the power source. Follow the steps bellow.Step 1. Set the configuration jumpers as are required by your system. Note: Isimportant to understand the selection jumper functions (see section 4.1) and to know theinput and output features of the devices to be connected to this board to reach a goodcouple.Step 2. Ensure that all external power sources are set to OFF.Step 3. Connect the power supply to the Power Terminals.Revision: 4/16/2012 http://cnc4pc.com/TechDocs/C50R1_User_Manual.pdf 5/14
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Page 3: C50 (Rev. 1) User Manual3. Specific
Page 7 and 8: C50 (Rev. 1) User Manual6.2 Outputs
Page 9 and 10: C50 (Rev. 1) User Manual7.2 Connect
Page 11 and 12: C50 (Rev. 1) User ManualCalculating
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C50- PARALLEL PORT INTERFACE CARD Rev. 1 User ... - CNC4PC

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