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The power connector for 4K players is rated for 12V @ 5A. The plug is a right-side positive, keyed and locking 4-pin connector.
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DE-9 RS-232 Serial
The RS-232 interface is a male DE9 male DE-9 (more commonly referred to as DB-9) connector. The BrightSign 4K player is a DTE device, similar to a PC. The input to the chip accepts a range between +25V and -25V, so it is compatible with +12V/-12V signaling.
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A lower capacitance cable allows you to use cable lengths beyond 50 meters. |
The following diagram illustrates the behavior of the TX and RX signal:
The following table illustrates the pinout of the DE9 serial connector on 4K players:
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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 DA15 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.
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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 on the 541 chips 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. |
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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) |
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The following table illustrates the pinout of the DA15 on the 4K series of players:
pin | Description | pin | Description |
1 | IR blaster input | 2 | Ground |
3 | Button 6 I/O | 4 | Button 5 I/O |
5 | Button 3 I/O | 6 | Ground |
7 | Button 1 I/O | 8 | +3.3V output at 500mA |
9 | Ground | 10 | Button 7 I/O |
11 | Ground | 12 | Button 4 I/O |
13 | Button 2 I/O | 14 | Ground |
15 | Button 0 I/O | -- | -- |
Here is the DA15 female as viewed from the front of a BrightSign 4K player:
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The equipment should be connected only to PoE networks without routing to the outside plant. |
The following table illustrates the pinout of the RJ45:
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pin | Description | pin | Description | ||
1 | VBUS | 2 | D- | ||
3 | D+ | 4 | Ground | ||
5 | StdA_SSTX- | 6 | StdA_SSTX+ | ||
7 | Ground | 8 | StdA_SSRX- | ||
9 | StdA_SSRX+ |
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3.5mm Audio Connector
All 4K models have a single 3.5mm female audio connector, which transmits an analog stereo signal. The full-scale voltage output of the audio is 2V RMS. The minimum load impedance of the audio connector is 32Ω.
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The BrightSign expansion module allows you to drive up to three sets of 5W headphones directly. |
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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) | -- |
HDMI Input
The HDMI-in connector is used to receive digital video and audio from HDMI-enabled source devices. This connector is compatible with HDMI 2.0 devices, capable of accepting a maximum video resolution of 3840x2160x60p. The signaling also conforms with DVI 1.0, HDMI 1.4, and HDCP 2.2 standards.
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