seeed studio EdgeBox-RPI-200 User manual

———————————————————————————————————————————
———————————————————————————————————————————
EdgeBox-RPI-200 User Manual V2.1
Raspberry PI CM4 Based Edge computer
Revision History
Revision
Date
Changes
1.0
17-08-2022
Created
2.1
13-01-2022
Product Change Notice

EdgeBox-RPI-200 User Manual
Product Change Notice:
As a part of our continual improvement process, we made the below changes in hardware version
D.
There is impact on the software due to this change.
CP2104->CH9102F
USB2514B->CH334U
CP2105->CH342F
The description in the Linux have been changed:
ttyUSB0-> ttyACM0
ttyUSB1-> ttyACM1
MCP79410->PCF8563ARZ
The address of the new RTC is 0x51.

EdgeBox-RPI-200 User Manual
i
Contents
1Introduction................................................................................................................................1
1.1 Features ..........................................................................................................................1
1.2 Interfaces.........................................................................................................................2
1.2.1 Multi-Func phoenix connector ......................................................................................3
1.3 Block Diagram .................................................................................................................4
2Installation .................................................................................................................................5
2.1 Mounting..........................................................................................................................5
2.2 Connectors and Interfaces...............................................................................................6
2.2.1 Power supply................................................................................................................6
2.2.2 Serial Port (RS232 and RS485) ...................................................................................7
2.2.3 DI&DO..........................................................................................................................8
2.2.4 HDMI ............................................................................................................................9
2.2.5 Ethernet........................................................................................................................9
2.2.6 USB HOST...................................................................................................................9
2.2.7 Console (USB type-C)..................................................................................................9
2.2.8 LED ............................................................................................................................10
2.2.9 SMA Connector ..........................................................................................................11
2.2.10 NANO SIM card slot................................................................................................11
2.2.11 Mini-PCIe ................................................................................................................12
2.2.12 M.2..........................................................................................................................14
3Drivers and Programming Interfaces .......................................................................................15
3.1 LED ...............................................................................................................................15
3.2 Serial Port (RS232 and RS485).....................................................................................15
3.3 Cellular over Mini-PCIe..................................................................................................15
3.4 WDT ..............................................................................................................................19
3.4.1 Block Diagram of WDT...............................................................................................19
3.4.2 How it works...............................................................................................................19
3.5 RTC ...............................................................................................................................21
3.5.1 RTC Chip information.................................................................................................21

EdgeBox-RPI-200 User Manual
ii
3.5.2 Enable RTC................................................................................................................21
3.6 UPS for safe shut down (Optional) ................................................................................23
4Electrical specifications............................................................................................................24
4.1 Power consumption .......................................................................................................24
4.2 UPS ...............................................................................................................................24
5Mechanical Drawings...............................................................................................................24

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 1
1 Introduction
EdgeBox-RPI-200 is a rugged fan less Edge Computing Controller with Raspberry Pi Computer
Module 4(CM4) for harsh industry environment. It can be used to connect the field networks with
cloud or IoT applications. It is designed from the ground up to meet the challenges of rugged
applications at competitive prices, ideal for small business or small order with scale multi-level
demands.
1.1 Features
•State-of-the-art Aluminum chassis for Harsh environment
•Integrated passive heat sink
•Built-in mini PCIe socket for RF module, such as 4G, WI-FI, Lora or Zigbee
•SMA antenna holes x2
•Encryption chip ATECC608A
•Hardware Watchdog
•RTC with Super Capacitor
•Isolated DI&DO terminal
•35mm DIN Rail support
•Wide power supply from 9 to 36V DC
•Optional: UPS with SuperCap for safe shutdown*
These features make the EdgeBox-RPI-200 designed for easy setup and quick deployment for
typical industrial applications, such as status monitoring, facility management, digital signage and
remote control of public utilities. Furthermore, it is a user-friendly gateway solution with 4 cores
ARM Cortex A72 and most industry protocols can save on total deployment costs including
electrical power cabling cost and help reduce the product’s deployment time. Its ultra-lightweight
and compact design is the answer for applications in space-constricting environments ensures it
can operate reliably in a variety of extreme environments including in-vehicle applications.
NOTE: For UPS function please contact us for more information.

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 2
1.2 Interfaces
①Multi-Func phoenix connector
②Ethernet connector
③USB 2.0 x 2
④HDMI
⑤LED2
⑥LED1
⑦SMA antenna 1
⑧Console (USB type C)
⑨SIM card slot
⑩SMA antenna 2

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 3
1.2.1 Multi-Func phoenix connector
Note
Func name
PIN #
PIN#
Func name
Note
POWER
1
2
GND
RS485_A
3
4
RS232_RX
RS485_B
5
6
RS232_TX
RS485_GND
7
8
RS232_GND
DI0-
9
10
DO0_0
DI0+
11
12
DO0_1
DI1-
13
14
DO1_0
DI1+
15
16
DO1_1
NOTE: 24awg to 16awg cable are suggested

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 4
1.3 Block Diagram
The processing core of the EdgeBox-RPI-200 is a Raspberry CM4 board. A specific base board
implements the specific features. Refer to next figure for the block diagram.

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 5
2 Installation
2.1 Mounting
The EdgeBox-RPI-200 is intended for two wall mounts, as well one with 35mm DIN-rail. Refer to
next figure for the recommended mounting orientation.

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 6
2.2 Connectors and Interfaces
2.2.1 Power supply
Pin#
Signal
Description
1
POWER_IN
DC 9-36V
2
GND
Ground (Reference potential)
The PE signal is optional. If there is no EMI present, the PE connection can leave open.

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 7
2.2.2 Serial Port (RS232 and RS485)
Pin#
Signal
Description
4
RS232_RX
RS232 receive line
6
RS232_TX
RS232 transmit line
8
GND
Ground (Reference potential)
Pin#
Signal
Description
3
RS485_A
RS485 difference line high
5
RS485_B
RS485 difference line low
7
RS485 _GND
RS485 Ground (isolated from GND)
The RS485_GND signal is isolated with “GND” signal. If a shielded twisted pair wire is used, the
RS485 _GND is connected to the shield.
NOTE: The 120 Ohm termination resistor for RS485 has been installed inside.

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 8
2.2.3 DI&DO
Pin#
Signal of
terminal
PIN Level
of active
PIN of GPIO from
BCM2711
NOTE
09
DI0-
HIGH
GPIO17
11
DI0+
13
DI1-
HIGH
GPIO27
15
DI1+
10
DO0_0
HIGH
GPIO23
12
DO0_1
14
DO1_0
HIGH
GPIO24
16
DO1_1
NOTE:

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 9
NOTE:
1. DC voltage for input is 24V (+- 10%).
2. DC voltage for output should be under 60V, the current capacity is 500ma.
3. Channel 0 and channel 1 of input are isolated to each other
4. Channel 0 and channel 1 of output are isolated to each other
2.2.4 HDMI
Directly connected to the Raspberry PI CM4 board with TVS array.
2.2.5 Ethernet
Ethernet interface is same as Raspberry PI CM4,10/100/1000-BaseT supported, available through
the shielded modular jack. Twisted pair cable or shielded twisted pair cable can be used to connect
to this port.
2.2.6 USB HOST
There are two USB interfaces at the connector panel. The two ports share the same electronic
fuse.
NOTE: Max current for both ports is limited to 1000ma.
2.2.7 Console (USB type-C)
The design of console used a USB-UART converter, most OS of the computer have the driver, if not,
the link below may be useful:
This port is used as a Linux console default. You can log into the OS use the settings of
115200,8n1(Bits: 8, Parity: None, Stop Bits: 1, Flow Control: None). A terminal program such as
putty is needed, too.
The default user name is pi and password is raspberry.

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 10
2.2.8 LED
EdgeBox-RPI-200 use two green/red dual colour LED as outside indicators.
LED1: green as power indicator and red as eMMC active.
LED2: green as 4G indicator and red as user programmable led connected to GPIO21, low
active, programmable.
EdgeBox-RPI-200 also use two green colour LED for debug.

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 11
2.2.9 SMA Connector
There are two SMA Connector holes for antennas. The antenna types are very depended on what
modules fitted into the Mini-PCIe socket. The ANT1 is default used for Mini-PCIe socket and ANT2
is for Internal WI-FI signal from CM4 module.
NOTE: The functions of the antennas are not fixed, maybe adjusted to cover other usage.
2.2.10 NANO SIM card slot
The sim card is only needed in cellular (4G, LTE or others based on cellular technology) mode.
NOTE:
1. Only NANO Sim card is accepted, pay attention to the card size.
2. The NANO sim card is inserted with chip side top.

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 12
2.2.11 Mini-PCIe
The orange area is the rough Mini-PCIe add-on card position, only one m2x5 screw is needed.
The table below show all the signals. Full size Mini-PCIe card are supported.

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 13
Pinout:
Signal
PIN#
PIN#
Signal
1
2
4G_PWR
3
4
GND
5
6
USIM_PWR
7
8
USIM_PWR
GND
9
10
USIM_DATA
11
12
USIM_CLK
13
14
USIM_RESET#
GND
15
16
17
18
GND
19
20
GND
21
22
PERST#
23
24
4G_PWR
25
26
GND
GND
27
28
GND
29
30
UART_PCIE_TX
31
32
UART_PCIE_RX
33
34
GND
GND
35
36
USB_DM
GND
37
38
USB_DP
4G_PWR
39
40
GND
4G_PWR
41
42
4G_LED
GND
43
44
USIM_DET
SPI1_SCK
45
46
SPI1_MISO
47
48
SPI1_MOSI
49
50
GND
SPI1_SS
51
52
4G_PWR

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 14
NOTE:
1. All blank signals are NC (not connect).
2. 4G_PWR is the individual power supply for Mini-PCIe card. It can be shut down or turn
on by the GPIO6 of CM4, the control signal is high active.
3. 4G_LED signal is connected to LED2 internally, refer to section of 2.2.8.
4. SPI1 signals are used only for LoraWAN card, such as WM1302.
2.2.12 M.2
EdgeBox-RPI-200 equipped a M.2 socket of M KEY type. ONLY 2242 size NVME SSD card is
support, NOT mSATA.
R79
10K
R0402
VCC_3V3
5V0
R81 22R
R0402
GPIO6
R80
47K
R0402
C69
10uF
C0603
R82
10K
R0402
C70
18pF
C0402
L4
NR3015T2R2M
ind_lps3015
U23
SY8089
sot_23_5
EN
1
GND
2
SW 3 VIN
4
FB 5
4G_PWR
+C71
22uF
C0805
1
2
+C72
22uF
C0805
1
2

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 15
3 Drivers and Programming Interfaces
3.1 LED
The is a LED used as user indicator, refer to 2.2.8. Use LED2 as a example to test the function.
$ sudo -i #enable root account privileges
$ cd /sys/class/gpio
$ echo 21 > export #GPIO21 which is user LED of LED2
$ cd gpio21
$ echo out > direction
$ echo 0 > value # turn on the user LED, LOW active
OR
$ echo 1 > value # turn off the user LED
3.2 Serial Port (RS232 and RS485)
There are two individual serial ports in the system. The /dev/ ttyACM1 as RS232 port and
/dev/ ttyACM0 as RS485 port. Use RS232 as a example.
$ python
>>> import serial
>>> ser=serial.Serial('/dev/ttyACM1',115200,timeout=1)
>>> ser.isOpen()
true
>>> ser.isOpen()
>>> ser.write('1234567890')
10
3.3 Cellular over Mini-PCIe
Use Quectel EC20 as a example and follow the steps:
1. Insert the EC20 into Mini-PCIe socket and micro sim card in related slot, connect the

EdgeBox-RPI-200 User Manual
WWW.SEEEDSTUDIO.COM 16
antenna.
2. Log in the system via console use pi/raspberry.
3. Turn on the power of Mini-PCIe socket and release the reset signal.
$ sudo -i #enable root account privileges
$ cd /sys/class/gpio
$ echo 6 > export #GPIO6 which is POW_ON signal
$ echo 5 > export #GPIO5 which is reset signal
$ cd gpio6
$ echo out > direction
$ echo 1 > value # turn on the power of Mini PCIe
AND
$ cd gpio5
$ echo out > direction
$ echo 1 > value # release the reset signal of Mini PCIe
NOTE: Then the LED of 4G is start to flash.
4. Check the device:
$ lsusb
Bus 001 Device 005: ID 2c7c:0125 Quectel Wireless Solutions Co., Ltd. EC25 LTE modem
$ dmesg
[ 185.421911] usb 1-1.3: new high-speed USB device number 5 using dwc_otg
[ 185.561937] usb 1-1.3: New USB device found, idVendor=2c7c, idProduct=0125,
bcdDevice= 3.18
[ 185.561953] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 185.561963] usb 1-1.3: Product: Android
[ 185.561972] usb 1-1.3: Manufacturer: Android
[ 185.651402] usbcore: registered new interface driver cdc_wdm
[ 185.665545] usbcore: registered new interface driver option
[ 185.665593] usbserial: USB Serial support registered for GSM modem (1-port)
[ 185.665973] option 1-1.3:1.0: GSM modem (1-port) converter detected