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The power connector for the XD235 and XD1035, which connects the power cord to the device, is rated for 12V @3A. The plug is a right-side positive, locking 2-pin (1x2) connector.
HDMI Output
The HDMI®-out connector is used to send digital video and audio to HDMI-enabled sink devices. The HDMI ® output on the XD235 and XD1035 is HDMI 2.0a. CEC control is supported over the HDMI interface independently. This connector can output a maximum video resolution of 3840x2160x60p.
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Tip: 3.3V@50mA
Ring: IR Input
Sleeve: IR Output
The sleeve is used as a ground during input operations. |
3.5mm Serial
The XD1035 has a UART (asynchronous serial) interface in a 3.5 mm mini-jack that uses RS-232 levels for communication. The receiver will tolerate input voltages between -30V and +30V, with anything below 3V interpreted as a logical 1. The transmitter drives +8V for logical 0 and -8V for logical 1.
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The GPIO outputs have 100Ω series resistors; the GPIO inputs have 1K pullup resistors to 3.3V; and the input threshold is 2V high and .8V low. The high voltage is not problematic, but the low voltage can be if there are too many inputs connected to one output.
1 out driving 1 in | V=3.3*100/(100+1,000)=0.3 |
1 out driving 2 in | V=3.3*100/(100+500)=0.55 |
1 out driving 3 in | V=3.3*100/(100+333.3)=0.76 |
1 out driving 4 in | V=3.3*100/(100+250)=.94 (This is too high, so 1 output driving 3 inputs is the maximum) |
GPIO Pinout
The following table illustrates the pinout of the GPIO on the XD235 and XD1035:
Pin | Function | Pin | Function |
|---|---|---|---|
1 | GND | 7 | GND |
2 | 3.3V | 8 | 3.3V |
3 | BUTTON 0 | 9 | BUTTON 4 |
4 | BUTTON 1 | 10 | BUTTON 5 |
5 | BUTTON 2 | 11 | BUTTON 6 |
6 | BUTTON 3 | 12 | BUTTON 7 |
The following schematic illustrates the pinout of the GPIO connector:
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