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Hardware Layout for reComputer

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You will get the basic idea of the reComputer for Jetson Series hardware layout here. Meanwhile, you will know how to remove and install the core board from the carrier board, how to install the camera, M.2 Wi-Fi module or hard disk, etc.

reComputer Series Placement

When facing the backplane of the reComputer interface, there are 4 anti-skid pads on the right side of the chassis for easy standing, as shown in the figure below.

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The bottom of the reComputer chassis is a suspended structure, and the chassis can be fixed on some inconvenient structures with binding tapes. The chassis bottom plate has 4 fixing holes to facilitate fixing on the facade or slope.

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reComputer Series Top Cover

When facing the backplane of the reComputer interface, there are 4 anti-skid pads on the right side of the chassis, where a metal button can be seen, as shown in the following figure:

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Push the button up to lift the top cover of the case, and then you can lift it open to remove the top cover.

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Remove the Core Board from the Carrier Board

After opening the chassis, you can see the module inserted on the carrier board, as shown in the following figure. The module can be removed from the carrier board by following the steps below.

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  • Step 1: Before removing the core version, first you must confirm whether the fan power supply is connected. If it is, you need to unplug the fan power supply from the plug (For Jetson Nano there may not be a fan and you can skip this step).

  • Step 2. Remove the screws that hold the core plate with a cross screwdriver.

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  • Step 3. Open the clamp on the carrier plate outward, and the core plate will spring up automatically.

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  • Step 4. Remove the core board diagonally upwards.

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Mount the Module on the Carrier Coard

  • Step 1. Find the corresponding Jetson SODIMM connector fingers on the carrier board and the connector on the module.

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  • Step 2. Insert the module diagonally about 20 degrees into the slot of the carrier plate. Press down and it will be fixed on the carrier board.

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Note

You may find that under the correct installation there are a few connector fingers shown at the interface. It will be unstable once many connector fingers are exposed.

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  • Step 3. Use a cross screwdriver to tighten the screws.

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  • Step 4. If the module includes a cooling fan, plug the fan's power plug into the power socket on the carrier board.

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Remove Carrier Coard from the reComputer Chassis

When we want to install the M.2 module or CSI camera and other operations, we will need to remove the carrier board from the reComputer chassis for more easier operation. The carrier board is fixed to the chassis base with 4 screws, as shown in the following figure:

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Remove the 4 fixing screws as shown below:

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Take the carrier board together with the module out of the chassis:

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Equip the reComputer with a Camera Module

Both reComputer carrier boards have two CSI interfaces. The interfaces are usually used to connect a camera for some identification projects. Here we take the J1010 carrier board as an example to guide you to equip and use the Raspberry Pi Camera Module V2 on the reComputer.

  • Step 1. Mount the camera module on the carrier board

Note

Before installation, please turn off the reComputer, unplug the power supply, and open the top cover of the chassis. For the convenience of demonstration below, we removed the carrier board from the chassis and the module. The actual operation only needs to open the top cover.

Select the CSI connector you want to use, then gently flip up the black retention slots on both sides.

Make sure to set the black slot aside before inserting the cable into the slot.

Watch out the direction of the cable. You can see that the side of the cable pin is facing the carrier board, and the blue side is facing out.

  • Step 2. Power on and start reComputer.

After plugging in the camera cable, make sure that the module, carrier board and peripherals are all installed in place. And then power on.

  • Step 3. Check if the camera is recognized.

Enter the following command in the command line window to see if a camera device is currently available.

$ ls /dev/video0 

If the output shows as below, it means that the camera has been successfully detected.

If you don't see the device file, check whether your ribbon is oriented correctly and make sure your Raspberry Pi camera is V2 version as the V1 version is not recognized.

  • Step 4. Apply the Camera

You can use the sensor_mode attribute with the GStreamer nvarguscamerasrc element to specify which camera. Valid values ​​are 0 or 1 (defaults to 0 if not specified), i.e.

# Simple Test
# Ctrl^C to exit
# sensor_id selects the camera: 0 or 1 on Jetson Nano B01
$ gst-launch-1.0 nvarguscamerasrc sensor_id=0 ! nvoverlaysink

You can use the following commands in the command line window to test the usage of the camera.

After running this command, reComputer will display the screen captured by the camera in full screen until you press Ctrl+C.

If you have more camera usage needs, you can refer to the CSI-Camera project to explore and learn by yourself.

Equip the Wireless Module for the reComputer

Here we will show you how to install an M.2 Key E wireless module on the reComputer.

Equipment and accessories required:

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Note

Installing the wireless module of the M.2 Key E requires additional antennas. Because the module is in the chassis, it may even be pressed between the module and the carrier board. Without antennas, the signal strength will be greatly affected.

  • Step 1. Detach the carrier board from the reComputer chassis

Before installing the wireless module, detach the carrier board from the reComputer chassis as shown below:

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  • Step 2. Remove the case silicone plug

There are 4 reserved antenna openings in the chassis, where are plugged with silicone plugs, as shown in the figure below.

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Select the two outer holes, squeeze the silicone plug from the outside of the chassis to the inside of the chassis, and then pull out the silicone plug from the inside to expose the antenna hole.

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  • Step 3. Install the SAM header

As shown in the figure below, install the nut and nut of the SAM head to the wifi hole, paying attention to place the cable end in the chassis.

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  • Step 4. Insert the wireless module into the M.2 Key E port

Note

The M.2 Key E interface is on the bottom or top of the carrier board. For different carriers, please refer to Carrier Board Hardware Layout. Before installation, you may want to remove the core board from the carrier board.

As shown in the figure below, find the M.2 Key E interface on the carrier board, and insert the wireless module into the interface slot.

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After the wireless module is firmly inserted, fix it with screws.

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  • Step 5. Insert 2 IPEX plugs into the corresponding sockets of the wireless module, the connection is a button connection, as shown in the figure below. Simply press it and no more operations are required.

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The installation should be like the figure shown below. At this time, be careful not to break the wire between the wireless module and the SAM antenna base.

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  • Step 6. Install the module to the chassis

Place carefully the carrier board into the reComputer chassis and then install the screws.

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  • Step 7. Equip antennas

Install two SAM male antennas to the SAM female sockets and tighten. That will be all the hardware installation.

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  • Step 8. Power on the reComputer and connect to the wireless network

Connect the peripherals to the reComputer and then power on. Enter the system and open the network option in the upper right corner of the screen. After checking the Enable Wi-Fi option, you will see the nearby wireless network. Select the available wireless network connection.

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Congratulations, you have successfully installed the wireless module and connected to the network.

Hardware Layout

J101 carrier board

Top View

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J202 carrier board

Top View

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Bottom View

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Jetson A206 carrier board(equipped with Jetson Nano)

Click here to check out the pins of Jetson A206 carrier board(equipped with Jetson Nano) to the operating interfaces.

Top View

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Bottom View

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Jetson A206 carrier board (equipped with Jetson Xavier NX)

Click here to check out the pins of Jetson A206 carrier board(equipped with Jetson Nano) to the operating interfaces.

Top View

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Bottom View

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Detailed Comparison

Product reComputer J1010 reComputer J1020 reComputer J2011 reComputer J2012
Module Nano Nano Xavier NX Xavier NX 16GB
AI Perf 472 GFLOPS 472 GFLOPS 21 TOPS 21 TOPS
GPU 128-core NVIDIA Maxwell™ 128-core NVIDIA Maxwell™ 384-core NVIDIA Volta™ GPU 384-core NVIDIA Volta™ GPU
CPU Quad-core ARM A57 @ 1.43 GHz Quad-core ARM A57 @ 1.43 GHz 6-core NVIDIA Carmel ARM®v8.2 64-bit CPU 6 MB L2 + 4 MB L3 6-core NVIDIA Carmel ARM®v8.2 64-bit CPU 6 MB L2 + 4 MB L3
Memory 4GB 64-bit LPDDR4 25.6GB/s 4GB 64-bit LPDDR4 25.6GB/s 8 GB 128-bit LPDDR4x 59.7GB/s 8 GB 128-bit LPDDR4x 59.7GB/s
Storage 16 GB eMMC 16 GB eMMC 16 GB eMMC 16 GB eMMC
VIDEO ENCODER 4K30 | 2x1080p60 | 4x1080p30 | 4x720p60 | 9x720p30 (H.265 & H.264) 4K30 | 2x1080p60 | 4x1080p30 | 4x720p60 | 9x720p30 (H.265 & H.264) 2x 4K60 | 4x 4K30 | 10x 1080p60 | 22x 1080p30 (H.265) 2x 4K60 | 4x 4K30 | 10x 1080p60 | 20x 108p30 (H.264) 2x 4K60 | 4x 4K30 | 10x 1080p60 | 22x 1080p30 (H.265) 2x 4K60 | 4x 4K30 | 10x 1080p60 | 20x 108p30 (H.264)
VIDEO DECODER 4K60 | 2x 4K30 | 4x 1080p60 | 8x 1080p30 | 9x 720p60 (H.265 & H.264) 4K60 | 2x 4K30 | 4x 1080p60 | 8x 1080p30 | 9x 720p60 (H.265 & H.264) 2x 8K30 | 6x 4K60 | 12x 4K30 | 22x 1080p60 | 44x 1080p30 (H.265) 2x 4K60 | 6x 4K30 | 10x 1080p60 | 22x 1080p30 (H.264) 2x 8K30 | 6x 4K60 | 12x 4K30 | 22x 1080p60 | 44x 1080p30 (H.265) 2x 4K60 | 6x 4K30 | 10x 1080p60 | 22x 1080p30 (H.264)
Gigabit Ethernet 1x RJ45 Gigabit Ethernet Connector (10/100/1000) 1x RJ45 Gigabit Ethernet Connector (10/100/1000) 1x RJ45 Gigabit Ethernet Connector (10/100/1000) 1x RJ45 Gigabit Ethernet Connector (10/100/1000)
USB 1 x USB 3.0 Type A Connector; 2 x USB 2.0 Type A Connector; 1 x USB Type C for Device mode; 1 x USB Type C for 5V power input 4 x USB 3.0 Type A Connector; 1 x Micro-USB port for Device mode; 4 x USB 3.0 Type A Connector; 1 x Micro-USB port for Device mode; 4 x USB 3.0 Type A Connector; 1 x Micro-USB port for Device mode;
CSI Camera Connect 2x CSI Camera (15 pos, 1mm pitch, MIPI CSI-2 ) 2x CSI Camera (15 pos, 1mm pitch, MIPI CSI-2 ) 2x CSI Camera (15 pos, 1mm pitch, MIPI CSI-2 ) 2x CSI Camera (15 pos, 1mm pitch, MIPI CSI-2 )
Display 1x HDMI Type A 1xHDMI Type A; 1xDP 1xHDMI Type A; 1xDP 1xHDMI Type A; 1xDP
FAN 1x FAN(5V PWM) 1x FAN(5V PWM) 1x FAN(5V PWM) 1x FAN(5V PWM)
M.2 KEY E 1x M.2 Key E 1x M.2 Key E(Disabled) 1x M.2 Key E 1x M.2 Key E
M.2 KEY M - 1x M.2 Key M 1x M.2 Key M 1x M.2 Key M
RTC 1x RTC Socket 1x RTC socket 1x RTC Socket 1x RTC Socket
Multifunctional port 1x 40-Pin header 1x 40-Pin header 1x 40-Pin header 1x 40-Pin header
Power USB-Type C 5V⎓3A; DC Jack 12V/2A DC Jack 19V/4.74A (MAX 90W) MAX DC Jack 19V/4.74A (MAX 90W) MAX
Mechanical 130 mm x 120 mm x 50 mm 130mm x120mm x 50mm 130mm x120mm x 50mm 130mm x120mm x 50mm

Carrier Board Technical Specification

Connector J1010 Carrier Board Jetson A206 Carrier Board
Jetson module connector 1x Jetson SODIMM connector, 260-pin 1x Jetson SODIMM connector, 260-pin
USB Type A 1x USB 3.0 Type-A Connector 2x USB 2.0 Type A connectors 4x USB 3.0 Type-A Connectors
USB Micro Type B - 1x USB Micro B, RA Female
USB Type C 2x Type C connector -
Ethernet Port 1x RJ45 Gigabit Ethernet Connector (10/100/1000) 1x RJ45 Gigabit Ethernet Connector (10/100/1000)
Display Port 1xHDMI type A 1xHDMI type A and 1xDP
CSI Camera Connector 2x CSI Camera (15 pos, 1mm pitch, MIPI CSI-2 ) 2x CSI Camera (15 pos, 1mm pitch, MIPI CSI-2 )
M.2 Key E 1x M.2 Key E Slot (75-pin) 2230 1x M.2 Key E Slot (75-pin) 2230
M.2 Key M - 1x M.2 Key M Slot (75-pin) NVME 2280
Multifunctional Port 2.0 Pitch 40 PIN 2.0 Pitch 40 PIN
Button Header 1x Button Header (1x12, 2.54mm pitch, RA) 1x Button Header (1x12, 2.54mm pitch, RA)
FAN Connector 1x Picoblade Header 1x Picoblade Header
CAN Diasabled 1x CAN Bus Header (1x4, 2.54mm pitch, RA)
RTC 1x RTC Back-up Coin Cell Socket (CR1220) 1x RTC Back-up Coin Cell Socket (CR1225)
Power 1x Type C connector 1x DC Input Power TE Connector