MICA-R4 GPIO IP20
PictureFeatures- Industrial Raspberry Pi 4 (CM4)- New processor, up to 2x faster than CM3- Raspberry Pi OS compatible (Ubuntu requres 4GB or more RAM)
- DC12/24V power input- Wide operating temperature range and high noise resistance- M8, M5, ix connectors with high vibration resistance andconnection reliability- Robust aluminum die-cast housing- Supports wall mount and DIN rail mount- On-board eMMC does not use SD memory for boot- microSD slot for data storage- Internal M.2 slot for SSD and WWAN expansion- Raspi40p connector for expansion board- Built-in battery backup RTC- Highly reliable hardware watchdog

Product Specifications

InterfaceProcessorMemory
OSInterface Front<Connector pin layout>
PWR connector Pin Col. Signal

Broadcom BCM2711, Quad core @ 1.5GHz
RAM4GB, eMMC32GB (Depend on model)
Raspberry Pi OS
1x PWR: Power input, 2-line
2x LAN: FLAN 1ch, GLAN 1ch
1x OPT: i2c/RS-232/485 selectable
1x USB: USB2.0 Host Type-A
1x GPIO: D-SUB15p GPIO12ch, GND,3.3V,5V[Option]1x WLAN IEEE 802.11 b/g/n/ac
Bluetooth 5.0, BLE[Option]1x LTE(M.2 slot/EM7431)
1x USB-C : USB Type-C(eMMC writing only)
Back
1x SW
: eMMC write switch
1x microSD : microSD slot
Internal 1x M.2 slot B-key*, 1x nanoSIM slot
1x CSI, 1xGPIO 40p
P: Power status, A0,1: LAN status
LED, Button
Pi: User custom/WD error
BR1225[or CR1225] Backup RTC
RTC/NVRAM
Built-in hardware watchdog
Watchdog
GPIO:DC10.7V...28.8V/
Power/12W(incl. USB 500mAx1)
Consumption
Temperature
Operating Temp.: -20〜60°C, Storage:-25〜85°CHumidity
Operating Humi.:0〜95%(non-condensing)IP grade
IP20
housing material
Aluminum powder coatingDimensions
W132 x D87 x H35 mm (excluding protrusions)
Weight
GPIO:Approx.550g
Vibration/shock
IEC 60068-2-6 / IEC 60068-2-27
EMI
Radiated emissions
EN55016-2-3
EMS
Electrostatic radiation immunity
EN 61000-4-2
Radio frequency electromagnetic fields EN 61000-4-3
Fast transient burst
EN 61000-4-4
Installation method DIN rail mounting, wall mounting(Option)*Not a full pin connection. USB2.0, PCIe, SIM are connected.

241

123
43M8 A-coded
4pin Male

PinE0 connector[GLAN]
ix type-A
jack

E1 connector[FLAN]4231

M8 A-coded
4pin Female

12345678910

BR 24VDC(V1)
WH 24VDC(V2)BL 0V(V1)
BK 0V(V2)Signal10/100M
TX+
TXN.C.
N.C.
N.C.
RX+RXN.C.
N.C.
N.C.

1G
BI_DA+
BI_DAGND
BI_DC+
BI_DCBI_DB+
BI_DBGND
BI_DD+
BI_DD-

OPT connector

LED
Sts.
Comments
P(GR) Off No power supply
On Power OK
A0(OR) Blk E0 active
A1(OR) Blk E1 active
Pi(RD) Off WD Normal
On WD Error
Pi(GR) Off User OFF
On User ON<CSI>[Internal]

FPC connector

No.1<GPIO>[Internal]

243 4pin Female

M5Pin Col. i2c RS232
1 BR 3.3V/5V/none*1
TXD
2 WH SCL
3 BL 0V(RS232:SG)RXD
4 BK SDAGPIO connector

AB

516 High density

1511 Female

D-Sub15pin

Pin12345678Signal
GPIO
GND
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8

<ANT SMA port> [Option]

Pin9101112131415Type
ANT2--Wired LAN--Wired LAN+LTE--Wired LAN+Wireless LAN
Wired LAN+Wireless LAN+LTE --Pin12345678RS485*1 pin for power output is no output by default.

Pin Col. Signal
1 BR TX+
2 WH RX+3 BL RX4 BK TX+<LED>

1Signal
GND
CAM1_D0_N
CAM1_D0_P
GND
CAM1_D1_N
CAM1_D1_P
GND
CAM1_C_N

Pin
910111213141516-30

SignalGPIO
GPIO9GPIO10GPIO11GPIO12GPIO133.3V out
5V outANT1--Main
WL/BT
Main

ANT0--GNSS--WL/BT

SignalCAM1_C_P
GND
CAM_GPIO
NC
I2C1_SCL[GPIO45]
I2C2_SDA[GPIO44]
3.3V
NC

RasPi GPIO40pin (same layout as Raspberry Pi 40pin BM40B-SRDS-G-TF)

Details of each part
ANT1<Front>

ANT0PWRE1[FLAN]CSI slit

USB0

Maintenance port
P LED<Back> eMMC write switch

3.3V
GPIO2
GPIO3

D-sub15p-4

GPIO4Ground

OPT

GPIO

GPIO

D-sub15p-14
D-sub15p-2
D-sub15p-3

PiA0
USB0
LED
LED
microSD slot

A1 LED
E0[GLAN]
USB type-C port

D-sub15p-10
D-sub15p-9
D-sub15p-11

D-sub15p-5
D-sub15p-6
D-sub15p-13

Hole for fix barcket

Back cover

Screw forback cover

1357
92 5V
D-sub15p-154 5V
6 Ground D-sub15p-1
8 GPIO1410 GPIO15GPIO17 11GPIO27 13GPIO22 153.3V 1712 GPIO1814 Ground16 GPIO2318 GPIO24

GPIO10 19
GPIO9 21
GPIO11 23Ground 2520 Ground
22 GPIO2524 GPIO8 D-sub15p-8
26 GPIO7 D-sub15p-7

ID_SD 27
GPIO5 29
GPIO6 31
GPIO13 33

28 ID_SC30 Ground
32 GPIO12 D-sub15p-1234 Ground

GPIO19 35
GPIO26 37
Ground 3936 GPIO1638 GPIO2040 GPIO21: System Reserved(GPIO connector): System Reserved(SD connection)

The GPIOs of CM4 are 3.3V level.The total GPIO load is up to 50mA.
For detailed specifications, please refer to the CM4 datasheet.

All data given are in line with the actual state of art and therefore not binding.
HARTING reserves the right to modify designs without giving the relevant reasons.

MICA-R4 GPIO IP20
Dimensions and installation adapter

Internal datails<Top side>

microSD
Slot

USB
Type-C

SW2:eMMC write SW←ON
ON:eMMC write mode
OFF*operation mode

(Unit: mm)<Main board>
132

CN10

USB0

GND
GPIO12

CN3B

CN1

wall mount
kit mounting hole

1 2 3 41 2 3 41 2 3 4Maintenance CSIport(internal)

GPIOConnection14 2 3

1 3 2 42 1 3 4GPIO
D-SUB15pFemale

CN4CN5CN8<Wall mount kit>

PWR port

OPT port

USB2.0Type-A
E1:FLANOPT port power outputselection(solder jumper)<Bottom side>

5V
3.3V

Hardware watchdog Timer or
CSI selection switch
SW1: Select GPIO44,45↑ON
ON*: Watchdog
OFF: CSI(i2c)

E0:GLANix Industrial/type-A

Φ4.5

96

Optional accessories

Raspberry Pi
camera module

CN6 M.2 B-key Slot
[Signal connection PCIe Gen2x1,USB2.0,SIM]*Default
OPT port comm. selection
SW6: i2c/COM select ↑ONON:COM
OFF:i2c↑ON
SW5:COM select
ON:RS-485
OFF:RS-232↑ON
SW4:COM select
ON:RS-485
OFF:RS-232<Main board>

BR1225 orCR1225 Battery

Device List
SignalDevicePort or connection

Comments

E0:GLANCM4

eth0

10/100/1000Mbps

E1:FLANLAN9514i

eth1

10/100Mbps

Security IC

ATECC508A

i2c-0/0x60

i2c0: GPIO0,1

RTC

DS3231SN

i2c-0/0x68

i2c0: GPIO0,1

OPT:i2c

CM4/GPIO0,1

i2c-0/---

i2c0: GPIO0,1

OPT:RS-232

MCP2200-I

ttyACM03-wire, max. 250kbps

OPT:RS-485

MCP2200-I

ttyACM02-wire, max. 400kbpsCSI:i2c

CM4/GPI44,45

GPIO44,45/i2c-1

i2c1: GPIO44,45 / when not using WD

CSI

CM4/CAM1CAM1MIPI CSI-2 2-lanes

WD Enable

MAX6373KA+T

GPIO44/Out

SET0 (SET1: Always High, SET2: Always Low)

WD Reset

MAX6373KA+T

GPIO45/Out

WDI

Optional accessories
1m
PWR
M8 A-code2m
cable
4-pin female to open end
1m
E1[FLAN] M8 A-code 4 pin male2m
cable
to RJ45 Plug
0.2m
to RJ45 Jack1m
OPT
M5 4-pin male to open end
2mcable1m
E0[GLAN] ix plug
to RJ45 Plug2mix cable0.2m
to RJ45 Jack
mountDIN rail mount adapter
kitwall mount kit
Antenna
LTE monopole antenna IP20
fot LTELTE flat antenna IP67
GPS/LTE combination antenna IP67

Part Number
21348100489010
21348100489020
72M8M4RM4010LI
72M8M4RM4020LI
72T17001449
72M5M4010G0
72M5M4020G0
33480653830010
33480653830020
72T17001450IX
20952000004
20953000007
72MICA0000224
72MICA0000225
72MICA0000226

For wireless LAN/Bluetooth[Incl. wireless model W]
Antenna IP20
SMA screw direct

GPS/LTE combination antenna[LTE model option]
IP67/cable 3mPanel-through-mounting
72MICA0000226
MA111.C.LB.001

LTE monopole antenna[LTE model option]
IP20
SMA screw direct
72MICA0000224
TG.09.0113

LTE flat antenna[LTE model option]
IP67/cable 1m
Attached to glass orresin surface
72MICA0000225
GSA.8835.A.101111

Confirmed Devices [Reference](option)Note) It may be changed depending on the Raspberry Pi OS side.

Watchdog (WD) timer and CSI connection
SW1: Watchdog or CSI can be switched by selecting GPIO44,45. Watchdog (WD) and CSI
cannot be used at the same time. When WD is selected, GPIO44 and 45 are for WD
operation. In addition, when SW3: No.1 of protection SW is off, the reset is forcibly disabled.
When CSI is selected, GPIO44 and 45 are used as i2c for CSI.

SoftwareThis is confirmation with the factory default image.
It depends on customer's software environment.
M.2 SSD
TS128GMTE452T, 256,512G model [0-70°C]/Transcend
TS128GMTE452T-I, 256,512G model [-40 to 85°C]/Transcend
TS128GMTE452T2, 256,512G model [-20 to 75°C]/Transcend
M.2 WWAN
EM7431, EM7430 /Sierra Wireless
USB Wifi
T2U Nano/TP-LINK companyWifi
LM808/LM technologies
CSI Camera Raspberry Pi Camera Module 2, Camera Module 2 NoIR
Raspberry Pi High Quality Camera / Raspberry Pi Foundation

Ordering information
2: CM4 IP20 type
R : Wired
W: Wirelessrevision number[Part Number] 722RUG1 0 0 0R3 3 0 GPIO model

The boot device of this unit is the onboard eMMC of CM4. Booting from an SSD is also
possible. The microSD slot is not for system boot. Turn on the eMMC write switch, connect
the USB cable, and use the rpiboot program to read and write images. In addition, the USB
port is only for eMMC write.

USB
Type-A- RPi Boot(Windows Installer)- Win32 DiskImager(read/write image)USB
Type-CUSB
Type-CeMMC write
switch

50.5

CN9SW3

Two types of mounting parts options<DIN rail mount adapter>

37.5

CN12

CN13

SW3:Protect SWON→
1: Watchdog
ON: Disabled
OFF*: Enabled
2: Wi-Fi
ON: turn off
OFF: turn on
3: Bluetooth
ON: turn off
OFF: turn on
4: EEPROM write
ON: disabled
OFF*: Enabled

9.8

8

6.2

nanoSIM
Slot(to M.2)

35

CN7

CN3A

U.FL
connector

87

GPIO

GND
VDD(OUT)
VBUS
DD+GND

Option (OPT)interface
1 RS-232C[standard]
2 I2C
3 RS-485

Expansion interface
0 NoneWhen selecting CodeSys, please use
32bit OS. If you select 64bit, the license
key will not be the Raspberry Pi version
and you will not be able to use it.

RAM size [GB]
1 1
2 2
3 4[standard]
4 8
eMMC size [GB]
1 8
2 16
3 32[standard]
4 32/SSD128GB
5 32/SSD256GB
6 32/SSD512GB
4,5,6: NVMe fast SSD(Temperature 0-55°C)

Add-on software
0 None[standard]
1 CodeSys

All data given are in line with the actual state of art and therefore not binding.
HARTING reserves the right to modify designs without giving the relevant reasons.

Accessory
0 None[standard]
1 Reserved
L LTE