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
2
Warning
01
02
NRU-52S system
3-pin pluggable terminal block
1
1
Item Description Quantity
NRU-52S Front Panel 3
USB3.1 Gen1
5
8
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
11
System Status LED
12
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
15

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
17
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
18
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.