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This section describes the characteristics and operation of all connectors on the XD233 and XD1033.
Power Connector
The power connector for the XD233 and XD1033 is rated for 12V@3A. The plug is a right-side positive, locking 2-pin (1x2) connector.
3.5mm Serial
The UART (asynchronous serial) interface is a 3.5mm (1/8") jack that uses TTL for communication. The receiver will tolerate input voltages between -30V and +30V, with anything below 3V interpreted as a logical 1. The transmitter drives +5V for logical 0 and 0V for logical 1.
Note
The 3.5mm serial port can interoperate with some RS-232 compatible devices. It can receive from any RS-232 device, but transmission may not work depending on the electrical characteristics of the device.
The default baud rate of the RS-232 interface is 115200, with no parity, 8 data bits, and 1 stop bit. These settings can be configured in the software. The serial interface supports TX, RX, and ground only—RTS/CTS hardware flow control is not supported.
A serial cable plug that is inserted into the 3.5mm jack should use the following signaling:
- Tip: Transmit
- Ring: Recieve
- Sleeve: Ground
The following diagram illustrates the behavior of the TX and RX signal:
GPIO
The XD233 and XD1033 have a 12-pin GPIO switch and LED connector, which allows the player to control external LEDs or other devices requiring 24mA of current or less.
The GPIO port is a standard design manufactured by Phoenix Contact, Wurth Electronics, and others. The XDx33 series ships with two pluggable GPIO terminal blocks, which can be inserted into the GPIO connector to make bare-wire contacts. An example part number for these terminal blocks can be found here.
If you are using the GPIO connector to drive LEDs, connect the LED outputs to the LED ANODE and connect the LED CATHODE to the ground. If you want to connect another device, then the output is capable of sourcing or sinking up to 3.3V at 24mA, but there is a series resistor of 100Ω in each line.
The connector also allows the connecting of external contact closures to the ground. In order to connect a switch, connect one side of the switch to the switch input, and connect the other side to one of the ground pins on the GPIO connector. The connector can also supply 3.3V at up to 500mA to an external device. The 3.3V output is polyfuse-protected and can source up to 500mA.
If one BrightSign player is driving the inputs on another BrightSign player, then you can drive at most three inputs from one output. The following calculations explain this limitation:
Note
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) |
The following table describes the pinout of the GPIO on the XT243 and XT1143:
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.
RJ45 LAN
The XD233 and XD1033 have an RJ45 connector for 1000BASE-T networking. The maximum length for Cat 5E cable is 100 meters; the allowed length can be higher or lower depending on the quality of the cable.
USB
The XD1033 has two USB 2.0 ports: one Type A and one Type C. The Type A connector can act as a dedicated charging port (DCP) when the two data pins are shorted together, and the Type C connector can operate as either a host or a device (i.e. a dual-role port).
Both ports are capable of transfer speeds up to 480 Mbit/s. The maximum length for a USB cable is 5 meters.
The following table illustrates the pinout of the USB 2.0 Type A host port:
pin | Description | pin | Description |
|---|---|---|---|
1 | VBUS | 2 | D- |
3 | D+ | 4 | Ground |
The following table illustrates the pinout of the USB 2.0 Type C host port:
pin | Signal Name | Description | Mating Sequence | pin | Signal Name | Description | Mating Sequence |
|---|---|---|---|---|---|---|---|
A1 | GND | Ground return | First | B12 | GND | Ground return | First |
A2 |
|
|
| B11 |
|
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|
A3 |
|
|
| B10 |
|
|
|
A4 | VBUS | Bus power | First | B9 | VBUS | Bus power | First |
A5 | CC1 | Configuration channel | Second | B8 |
|
|
|
A6 | Dp1 | Positive half of USB 2.0 differential pair – position 1 | Second | B7 | Dn2 | Negative half of USB 2.0 differential pair – position 2 | Second |
A7 | Dn1 | Negative half of USB 2.0 differential pair – position 1 | Second | B6 | Dp2 | Positive half of USB 2.0 differential pair – position 2 | Second |
A8 |
|
|
| B5 | CC2 | Configuration channel | Second |
A9 | VBUS | Bus power | First | B4 | VBUS | Bus power | First |
A10 |
|
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| B3 |
|
|
|
A11 |
|
|
| B2 |
|
|
|
A12 | GND | Ground return | First | B1 | GND | Ground return | First |
3.5mm Audio Connector
The XD233 and XD1033 have a combination analog/optical audio jack. To transmit a digital audio signal, use a TOSLINK optical audio cable with a 3.5mm connector. Analog and digital audio cannot be transmitted simultaneously.
The full-scale voltage output of the analog audio is 2V RMS. The minimum load impedance is 32Ω.
The analog audio connector has the following pinout:
- Tip: Left audio
- Ring: Right audio
- Sleeve: Ground for audio signal
3.5mm IR Input/Output
The IR blaster generates or receives a space-encoded NEC or Pronto Hex signal. The two transported bit values of the signal (0 and 1) are encoded using differing lengths of low-time IR pulses.
The 3.5mm IR in/out port has the following pinout:
- Tip: 3.3V
- Ring: IR Input
- Sleeve: IR Output
Note
The sleeve is used as a ground during input operations.
HDMI Output
The HDMI-out connector is used to send digital video and audio to HDMI-enabled sink devices. This connector is compatible with HDMI 2.0 devices, capable of outputting a maximum video resolution of 4096x2160x60p.
The following table illustrates the pinout of the HDMI connector:
pin | Description | pin | Description |
|---|---|---|---|
1 | TX2p | 2 | Ground |
3 | TX2n | 4 | TX1p |
5 | Ground | 6 | TX1n |
7 | TX0p | 8 | Ground |
9 | TX0n | 10 | TXCp |
11 | Ground | 12 | TXCn |
13 | CEC | 14 | NC |
15 | DDC SCL | 16 | DDC SDA |
17 | Ground | 18 | +5V DDC |
19 | HPD (Hot Plug Detect) | -- |
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