QCC-100 Construction
Dongle Version
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Step 4a. Attach the male mini-DIN connectorStrip the end of the wires from a four wire cable. A telephone cable, as shown in the picture, works well. Solder the wires to the four pin male mini-DIN connector. The cable should be cut to 5-6 inches (125-150 mm) in length. Looking at the mini-DIN connector from the wire side, the following graphic shows the solder connections with the wire colors as shown in the photo at left.
Male Mini-DIN Connector Viewed from the Wire Side |
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Step 5a. Solder the wires to the PCBBefore soldering the wires to the PCB, slide the mini-DIN cover over the cable. Attach the wires to their respective pads as shown in the previous step. |
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Step 6a. Attach the female mini-DIN connectorStrip the end of the wires from a four wire cable. Solder the wires to the four pin female mini-DIN connector. The cable should be cut to 5-6 inches (125-150 mm) in length. Looking at the mini-DIN connector from the wire side, the following graphic shows the solder connections with the wire colors as shown in the photo at left.
Female Mini-DIN Connector Viewed from the Wire Side |
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Step 7a. Solder the wires to the PCBBefore soldering the wires to the PCB, slide the mini-DIN cover and the heat-shrink tubing over the cable. The positive wire (yellow in the picture) should not be connected to the pad on the PCB. Attach the other three wires to their respective pads as shown in the previous step. Solder a separate wire to the positive pad on the PCB and cut it to 5-6 inches (125-150 mm) in length. NOTE: If all three axes on the DRO-350 have QCC-100's attached, you have the option to attach the positive wire on the cable (yellow in the picture) to the positive pad on the PCB and skip the next step. If you do this, then move the jumper across pins 3-4 on JP8 to pins 1-2. This will provide the 5V that the QCC-100 needs to operate over the positive wire on the mini-DIN connector. |
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Step 8a. Apply the heat-shrink tubingUse a heat gun or high wattage hair drier to shrink the heat-shrink tubing over the PCB with the cables sticking out of both ends. |
The finished dongle version will look like the following picture.
Completed Dongle Version of the QCC-100
Quadrature Cables
The pin-out of the female mini-DIN connector as seen looking into the connector is shown in the following graphic. Any connector can be used to better match your particular quadrature encoder. The mini-DIN connector is simply a convenient connector and is already used for the Chinese cables on the DRO-350.
Pin-out Looking Into the Female Mini-DIN Connector