Neousys Technology NRU-52S User manual

NRU-52S

Quick Installation Guide

• Only qualified service personnel should install and service this

product to avoid injury.

• Observe all ESD procedures during installation to avoid damaging

the equipment.

Unpack the equipment and make sure the following tools are

available and delivered contents are correct before you begin the

installation procedure.

1-1. User-provided tools

1-2. Packing List

• Anti-static wrist wrap

1Preparing tools

Warning

NRU-52S system

3-pin pluggable terminal block

Item Description Quantity

NRU-52S Front Panel 3

USB3.1 Gen1

3-pin DC Terminal Block

Please make sure the voltage of DC power is correct before you connect

it to the system. Supplying a voltage over 35V will damage the system.

Warning

Micro SIM Slot

The system offers two USB3.1 Gen1(SuperSpeed USB) ports on its

front panel. They are backward compatible with USB 2.0, USB 1.1 and

USB 1.0 devices.

4Force Recovery Button

The force recovery button is reserved for engineering or system

reflash purposes.

Please follow the below steps to boot NRU-52S into recovery mode

for reflash:

1. Make sure the ignition power mode is set to 0.

2. Make sure the system has powered down.

3. Press and hold down the force recovery button.

4. Simultaneously press the power button.

5. After 5 seconds, release the force recovery button.

6. The NRU-52S has booted into force recovery mode and can be

reflashed via the microUSB cable.

The Micro SIM slot can be coupled with the M.2 B key and five

antenna holes for 4G LTE or 5G NR module expansion.

6MicroSD Slot

Compatible with standard MicroSD card, the front-accessible slot

allows for easy data storage access or swap the MicroSD card.

7DisplayPort

The system allows an 8 to 35V DC power input from via a 3-pin pluggable

terminal block. The screw clamping mechanism is a reliable way to wire

DC power. In addition to DC power, this terminal block also accepts

ignition signal input (IGN).

The system has a DisplayPort (DP) output which is a digital display

interface that mainly connect video source and carry audio to a display

device. When connecting a DP, it can deliver up to 4K UHD (3840 x 2160

@ 30Hz) in resolution. The system is designed to support active DP

adapter/ cable from NVIDIA's recommended display adapters. You may

refer to NVIDIA's page to find more information:

(

)

https://nvidia.custhelp.com/app/answers/detail/a_id/4449/~/nvidia-

recommended-display-adapter

13 Power Button

COM Port

System Status LED

The power button is a non-latched switch for ATX mode on/off

operation. Press to turn on the system, PWR LED should light

up and to turn off, you can either issue a shutdown command in

the OS, or just press the power button. In case of system halts,

you can press and hold the power button for 5 seconds to

force-shutdown the system. Please note that there is a 5

seconds interval between two on/off operations (i.e. once

turning off the system, you will need to wait for 5 seconds to

initiate another power-on operation).

10 MicroUSB Port

Reserved for system maintenance only.

The COM port is a hardware configurable RS-232/ RS-422/ RS-485 port. By

default, the port is set up as an RS-232 port. To set up the port for RS-422/

485 operations, please refer to the user manual.

COM Port Definition

There are three LED indicators on the front panel: IGN, OS and

PWR. The descriptions of these LEDs are listed in the following

table.

9CAN bus Port

CAN bus is a robust industrial bus with a pair of differential signals

and is commonly used in various industrial and in-vehicles

applications. The system is equipped with a CAN bus DB9 port

that is compatible with both industrial and in-vehicle applications.

The CAN bus port supports CAN2.0A and CAN2.0B up to 1Mbps.

NRU-52S Series Rear Panel

16 DIO & GPS PPS Port Initialization

sudo -s

echo 446 > /sys/class/gpio/export # SOM_GPO0

echo out > /sys/class/gpio/gpio446/direction

echo 0 > /sys/class/gpio/gpio446/value

echo 447 > /sys/class/gpio/export # SOM_GPO1

echo out > /sys/class/gpio/gpio447/direction

echo 0 > /sys/class/gpio/gpio447/value

echo 448 > /sys/class/gpio/export # SOM_GPO2

echo out > /sys/class/gpio/gpio448/direction

echo 0 > /sys/class/gpio/gpio448/value

echo 445 > /sys/class/gpio/export # SOM_GPO3

echo out > /sys/class/gpio/gpio445/direction

echo 0 > /sys/class/gpio/gpio445/value

echo 443 > /sys/class/gpio/export # SOM_GPI1

echo in > /sys/class/gpio/gpio443/direction

echo 444 > /sys/class/gpio/export # SOM_GPI2

echo in > /sys/class/gpio/gpio444/direction

echo 441 > /sys/class/gpio/export # SOM_GPI3

echo in > /sys/class/gpio/gpio441/direction

IEEE 802.3at Power over Ethernet Port

The DO is followed by open-drain design, i.e., the output voltage

is decided by the external power source. We recommend to

design the external power source between 5V to 24V. The DI

treat 0 to 1.5V voltage input as 0, and treat 5 to 40V voltage input

as 1. In Linux, each GPIO is mapped to a virtual folder. And the

PPS0 is defined in our official device tree. Please refer to the

following table for information on wiring and programming the

isolated DIO channels.

DIO & GPS PPS Pin Definition

The Gigabit PoE ++ port supply power and data on a standard CAT-5 or

better Ethernet cable. Acting as a PSE (Power Sourcing Equipment),

compliant with IEEE 802.3bt, it has a total power budget of 144W while

each port can deliver up to 90W to a Powered Device (PD). PoE

automatically detects and determine if the connected device is PoE PD

or not before supplying power, making it compatible with standard

Ethernet devices as well. There are screw-lock holes (indicated in )

for each port to ensure cables are tightly secured.

red

Set DO Value

The following example takes DO0 as an example. The GPIO

number for DO0 is

446

sudo -s

# Set DO0 to 0

echo 446 > /sys/class/gpio/export # SOM_GPO0

echo out > /sys/class/gpio/gpio446/direction

echo 0 > /sys/class/gpio/gpio446/value

# Set DO0 to 1

echo 446 > /sys/class/gpio/export # SOM_GPO0

echo out > /sys/class/gpio/gpio446/direction

echo 1 > /sys/class/gpio/gpio446/value

Read DI Value

The following example takes DI3 as an example. The GPIO

number of DI3 is

441

cat /sys/class/gpio/gpio441/value

Grounding Point

The system offers EMI protection with an isolated PCB design. If you are

powering the NRU-52S using an isolated power supply, please make

sure the chassis grounding point is connected.

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