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This section describes the characteristics and operation of all connectors on the HO523.
RJ45 LAN
The HO523 has 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 HO523 has two USB 2.0 Type-A ports, which 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 ports:
pin | Description | pin | Description |
|---|---|---|---|
1 | VBUS | 2 | D- |
3 | D+ | 4 | Ground |
GPIO
The HO523 has a 6-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 HO523 series ships with a pluggable GPIO terminal block, which can be inserted into the GPIO connector to make bare-wire contacts. An example part number for the terminal block 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 HO523:
Pin | Function | Pin | Function |
|---|---|---|---|
1 | GND | 4 | BUTTON 1 |
2 | 3.3V | 5 | BUTTON 2 |
3 | BUTTON 0 | 6 | BUTTON 3 |
The following schematic illustrates the pinout of the GPIO connector:
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.
3.5mm Audio Connector
The HO523 has a combination analog/digital 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 Serial
The UART (asynchronous serial) interface is a 3.5mm(1/8") jack and will interoperate with most RS-232 compatible devices. 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.
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:
JAE TX25
The HO523 features a single 80-pin JAE TX25 connector (part no. TX25-80P-LT-H1E) for interfacing with displays via the Open Pluggable Specification (OPS) standard. This interface provides the following features:
- Power: DC IN 12V~19V @ 8A max (1A per power pin)
- Display Interface: TMDS only
- Audio: Left and Right channel
- USB: 4x USB 2.0 (2 to external, 1 to WiFi, 1 to display)
- UART: Tx/Rx serial communication
- Control Signaling: Pluggable Module Power Status, Power ON via display panel, Pluggable Board Detect, Consumer Electronics Control (CEC), System Fan Control
- mini-OPS Features: IR, Reset, I2C
Note
Bi-directional transmit/receive pairs for the LAN Media Dependent Interface (MDI) are not supported.
JAE TX25 can connect to two compliant receptacle connectors: TX24-80R-LT-H1E (standard interface) and TX24A-80R-LT-H1E (high-speed interface). We recommend the TX24A-80R-LT-H1E interface for all applications.
Pin Assignment
The following table describes the pin assignments of the JAE TX25 connector. The I/O column is from the perspective of the HO523 pluggable board.
Pin No. | Signal | Description | I/O | Pin No | Signal | Description | I/O |
|---|---|---|---|---|---|---|---|
40 | +12V~+19V | Power | - | 80 | GND | Ground | - |
39 | +12V~+19V | Power | - | 79 | GND | Ground | - |
38 | +12V~+19V | Power | - | 78 | GND | Ground | - |
37 | +12V~+19V | Power | - | 77 | GND | Ground | - |
36 | +12V~+19V | Power | - | 76 | GND | Ground | - |
35 | +12V~+19V | Power | - | 75 | GND | Ground | - |
34 | +12V~+19V | Power | - | 74 | PWR_STATUS | PowerGood | OUT (OC) |
33 | +12V~+19V | Power | - | 73 | PS_ON# | Pluggable Signal ON | IN |
32 | GND | Ground | - | 72 | PB_DET | Pluggable Board Detect | OUT |
31 | DVI_HPD | HDMI | IN | 71 | CEC | Consumer Electronic Control | I/O |
30 | DVI_DDC_CLK | HDMI | I/O | 70 | AZ_LINEOUT_R | Audio-Rch | OUT |
29 | DVI_DDC_DATA | HDMI | I/O | 69 | AZ_LINEOUT_L | Audio-Lch | OUT |
28 | GND | Ground | - | 68 | GND | Ground | - |
27 | TMDS2+ | HDMI | OUT | 67 | USB_PP0 | USB 2.0 | I/O |
26 | TMDS2- | HDMI | OUT | 66 | USB_PN0 | USB 2.0 | I/O |
25 | GND | Ground | - | 65 | GND | Ground | - |
24 | TMDS1+ | HDMI | OUT | 64 | - | No Connect | - |
23 | TMDS1- | HDMI | OUT | 63 | - | No Connect | - |
22 | GND | Ground | - | 62 | GND | Ground | - |
21 | TMDS0+ | HDMI | OUT | 61 | - | No Connect | - |
20 | TMDS0- | HDMI | OUT | 60 | - | No Connect | - |
19 | GND | Ground | - | 59 | GND | Ground | - |
18 | TMDS_CLK+ | HDMI | OUT | 58 | - | No Connect | - |
17 | TMDS_CLK- | HDMI | OUT | 57 | - | No Connect | - |
16 | GND | Ground | - | 56 | GND | GND | - |
15 | - | No Connect | - | 55 | - | No Connect | - |
14 | - | No Connect | - | 54 | - | No Connect | - |
13 | - | No Connect | - | 53 | - | No Connect | - |
12 | GND | Ground | - | 52 | UART_TXD | UART 3.3V | OUT |
11 | - | No Connect | - | 51 | UART_RXD | UART 3.3V | IN |
10 | - | No Connect | - | 50 | - | No Connect | - |
9 | GND | Ground | - | 49* | I2C_3.3V | I2C Power | - |
8 | - | No Connect | - | 48* | I2C_SDA | I2C Data | I/O |
7 | - | No Connect | - | 47* | I2C_SCL | I2C Clock | I/O |
6 | - | No Connect | - | 46* | IR | Infrared | IN |
5 | - | No Connect | - | 45 | - | No Connect | - |
4 | - | No Connect | - | 44 | - | No Connect | - |
3 | - | No Connect | - | 43* | RESET# | Device Reset | IN |
2 | - | No Connect | - | 42 | - | No Connect | - |
1 | - | No Connect | - | 41 | - | No Connect | - |
*Pins 41-49 are RESERVED in the original OPS specification.
Note
See the OPS specification for further details on pin signaling for the JAE TX25.
