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ON THIS PAGE

Table of Contents
indent20px

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.

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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
title

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:Image Removed

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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

title
Note

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 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. BrightSign players are DTE devices, so communication with other DTE devices requires a null-modem cable or converter that transposes the TX/RX signals from the 3.5mm port.

title
Note

Note

The The serial transmit pin does not comply with voltage levels for RS-232 signaling (which requires a voltage below -3V for logical 1). In In practice, the serial port can interoperate successfully with the majority of RS-232 receivers, but some devices (including some projectors and Crestron equipment) require strict conformance to RS-232 levels and will not accept 0V as logical 1. In these instances, you can connect the BrightSign player to the serial device using a USB-to-serial cable.

The default baud rate of the 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.

The 3.5mm serial port has the following configuration (from the perspective of the player):

  • Tip: Receive

  • Ring: Transmit

  • Sleeve: Ground

BrightSign players are DTE devices, so communication with another DTE device that uses a 3.5mm port would require a null-modem cable or converter that transposes the TX/RX signals. If the device communicating with the player uses a DE9 serial port, the serial cable should be wired as shown in the following diagram:Image Removed

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The following diagram illustrates the behavior of the TX and RX signal:Image Removed

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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. 

    Note
    titleNote

    The JAE TX25 serial port enumerates as port 1 in BrightAuthor/BrightScript. 


  • Control Signaling: Pluggable Module Power Status, Power ON via display panel, Pluggable Board Detect, Consumer Electronics Control (CEC), System Fan Control

title
Note

Note

 Bi-directional transmit/receive pairs for the LAN Media Dependent Interface (MDI) are not supported.

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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

-

No Connect

-

8

-

No Connect

-

48

-

No Connect

-

7

-

No Connect

-

47

-

No Connect

-

6

GND

Ground

-

46

-

No Connect

-

5

-

No Connect

-

45

-

No Connect

-

4

-

No Connect

-

44

-

No Connect

-

3

GND

Ground

-

43

-

No Connect

-

2

-

No Connect

-

42

-

No Connect

-

1

-

No Connect

-

41

-

No Connect

-

title
Note

Note

See the OPS specification for further details on pin signaling for the JAE TX25. 

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