Chipsee PPC-CM4-156 User manual

Industrial PC
PPC-CM4-156
PN: CS19108RA4156
Revision 1.1
www.chipsee.com

Contents
31. PPC-CM4-156
51.1. Product Overview
61.2. Ordering Options
61.2.1. Pi CM4 Module
61.2.2. Operating System
61.2.3. Optional Features
71.3. Specications
91.4. Power Input
101.5. Touch Screen
111.6. Connectivity
111.6.1. RS232/RS485/CAN
121.6.2. GPIO Port
141.6.3. USB Connectors
151.6.4. LAN Connectors
151.6.5. WiFi & BT Module
161.6.6. 3G/4G/LTE Module
171.6.7. Zigbee Module
201.7. TF Card Slot
211.8. Audio Connectors
221.9. PROG Button
231.10. Mounting Procedure
241.11. Mechanical Specications
241.11.1. CS19108RA4156P
251.12. Disclaimer
251.13. Technical Support
®
Chipsee IPC Page 2 of 25

PPC-CM4-156
Front View
Rear View
PPC-CM4-156
Chipsee IPC Page 3 of 25

Side View 1
Side View 2
PPC-CM4-156
Chipsee IPC Page 4 of 25

Product Overview
The Cortex -A72 Raspberry Pi series PPC-CM4-156 (PN: CS19108RA4156) is a high-quality
industrial Pi PC. It features a 15.6” Ten-point capacitive touch screen with a resolution of
1920 x 1080 pixels and brightness of 400 cd/m .
Key Applications
Human Machine Interface HMI
Process Control
Process Monitoring
HMI
IIoT node
Environmental Monitoring
PLC
Automotive applications
ATM…
It is available both as an embedded solution and as a device hosed in a casing with bezels,
thus facilitating dierent installation options:
Installation on an industrial cabinet
Integration with the existing equipment
The PPC-CM4-156 industrial Pi PC is based around the powerful Raspberry Pi Compute
Module 4, powered by the Quad Cortex -A72 processor with a processor speed of 1.5GHz.
® ®
2
•
•
•
•
•
•
•
•
•
•
•
®
®
PPC-CM4-156 Product Overview
Chipsee IPC Page 5 of 25

Ordering Options
Chipsee products can be customized during the ordering process. The product will be
shipped with the pre-installed factory defaults if no extra requirements are specied. The
table in the Specications section provides information about the default options bundled
with the product.
Pi CM4 Module
The Pi Compute Module 4 appears in dierent versions depending on the size of the DDR4
and eMMC.
The PPC-CM4-156 industrial Pi PC does not include the CM4 Raspberry Pi module by
default. If you would like to purchase it with a CM4, you can select it at the Chipsee store
during the ordering process.
Operating System
This product comes with a pre-installed Debian OS. Chipsee software engineers have
created all the drivers, so every hardware feature is readily available for any standard
development tool.
If your project requires a dierent OS, please Contact us, and we’ll make a customized
version that suits your needs.
Optional Features
The PPC-CM4-156 industrial Pi PC does not include the 3G/4G/LTE modules by default.
These modules are optional and can be selected at the Chipsee store during the ordering
process.
Note
You can order PPC-CM4-156 from the ocial Chipsee Store or from your nearest distributor.

®
®
®
Warning
Installation, repair, and maintenance tasks should be performed by trained personnel only.
Chipsee does not bear any responsibility for damage caused by inadequate handling of the product.

PPC-CM4-156 Ordering Options
Chipsee IPC Page 6 of 25

Specifications
The PPC-CM4-156 industrial Pi PC oers a broad range of performance and connectivity
options for scalable integration, providing expandability according to future needs. Some of
the key features are listed in the table below.
PPC-CM4-156
CPU Raspberry Pi CM4, CM4 Lite; Quad Cortex-A72 at 1.5GHz
Storage Support for 1 x TF Card3
RAM 2/4/8 GB, Based on CM4
eMMC 16/32 GB, Based on CM4
Display 15.6” IPS LCD, 1920 x 1080 resolution px, brightness 400 cd/m
Touch 10-point capacitive touch with 1mm Armored Glass
USB 2 x USB 3.0 Host, 1 x USB OTG
LAN 1 x Channel Giga LAN
Audio 3.5mm Audio Out Connector, 2W Speaker Internal
Buzzer Onboard Buzzer, driven by GPIO
RTC Yes, High Accuracy RTC with Lithium Button Coin battery (lithium battery not
included)
RS232 Default to 2 x RS232, up to 4 x RS232
RS485 Default to 2 x RS4851, these 2 x RS485 can be congured as 2 x RS232
CAN 1 x CAN-BUS
GPIO 8 Channels, 4 Input, 4 Output
I2C Not Supported
WiFi/BT Supported but depending on the CM4 selected2
ZIGBEE Onboard Zigbee module, not mounted by default
HDMI Not Supported
SATA II Not Supported
3G/4G/LTE Supported, not mounted by default
Camera No
Power Input From 12V to 36V
Current at 12V 1400mA Max
Power Consumption 17W Typical
Working
Temperature From 0°C to +80°C
®
2
PPC-CM4-156 Specications
Chipsee IPC Page 7 of 25

1
2
3
The RS485 circuit controls the Input and Output direction automatically, there’s no need to control it from
within the software.
The default product without the CM4 does not include a Wi-Fi/BT module. You can include a CM4 that has the
Wi-Fi/BT module at the Chipsee store during the ordering process.
This TF card is designed for storage expansion, as the TF card uses the same pins with WiFi, it can’t be used
with WiFi at the same time
PPC-CM4-156
OS Debian
Dimensions CS19108RA4156P: 422 × 271 × 52.5mm
Weight CS19108RA4156P: 4500g
Table 247 Key Features
PPC-CM4-156 Specications
Chipsee IPC Page 8 of 25

Power Input
The PPC-CM4-156 industrial Pi PC can be powered by a wide range of input voltages: From
12V to 36V DC. It is a 3 Pin, 3.81mm screw terminal connector. As shown in the gure
below.
Power Input
Note that the “+” sign represents the positive power input, and it is printed both at the
casing and as a silk-screen on the board of the embedded version. The “-” terminal is
shorted to the ground.
Power Input Denition
Pin Number Denition Description
Pin 1 Positive Input DC Power Positive Terminal
Pin 2 Negative Input DC Power Negative Terminal
Pin 3 Ground Power System Ground
Table 248 Power Connector
Note
The system ground “G” is connected to power negative “-” on board.

PPC-CM4-156 Power Input
Chipsee IPC Page 9 of 25

Touch Screen
The PPC-CM4-156 industrial Pi PC uses a 10-point capacitive touch screen. However, the
Debian OS supports only One-Point touch.
The gure below shows the capacitive touch screen connected to the motherboard via the
USB connector.
Capacitive Touch Connector
Attention
A capacitive touch screen is susceptible to power noise and Electromagnetic Radiation (EMR). It may cause LCD ripples
or even capacitive touch malfunction. If using a capacitive multi-touch test application, you might notice the touch
points oat erratically across the display. There are several solutions to this problem:
Use a high-quality Power Adapter Unit (PSU) with low EMR. You can also provide power from a battery.
Make sure that the PPC-CM4-156 Power Input connector (pin 3) is properly connected to the Power System
Ground to provide sucient EMI shielding and eliminate the problem entirely.
Bad GND problems can also be conrmed by touching pin 3 of the Power Input connector with one hand while
operating the capacitive touch screen with the other hand. In this case, the operator’s body acts as the Power
System Ground.

1.
2.
3.
PPC-CM4-156 Touch Screen
Chipsee IPC Page 10 of 25

Connectivity
There are many connectivity options available on the PPC-CM4-156 industrial Pi PC. It has 2
x USB 3.0 Host, 1 x USB OTG, 1 x Channel Giga LAN (RJ45) Ethernet connector supporting up
to 1 Gbps, and 4 x UART and 1 x CAN terminals (RS232/RS485/CAN).
RS232/RS485/CAN
The serial communication interfaces (RS485, RS232, and CAN) are routed to a phoenix
terminal, as illustrated in the gure below.
RS232-RS485-CAN on the PPC-CM4-156 Industrial PC
The table below oers more detailed description of every pin and its denition:
Attention
RS485_3 and RS485_5 can control the input and output direction automatically. There’s no need to control it from
within the software.
The 120Ω match resistor for RS485 is already mounted by default.
The 120Ω match resistor for CAN is NOT mounted by default. Be sure to mount the match resistor when testing
CAN.
The 2 x RS485 can be congured to 2 x RS232, if you want a custom conguration, you can contact us when
placing an order.

1.
2.
3.
4.
RS232 / RS485 / CAN Pin Denition:
Pin Number Denition Description
Pin 1 CAN_H CAN BUS “H” signal
PPC-CM4-156 Connectivity
Chipsee IPC Page 11 of 25

GPIO Port
The PPC-CM4-156 industrial Pi PC has a phoenix connector, as shown in the gure below.
The table below gives details about the denition of every Pin.
RS232 / RS485 / CAN Pin Denition:
Pin 2 CAN_L CAN BUS “L” signal
Pin 3 RS485_5- CPU UART5, RS485 –(B) signal
Pin 4 RS485_5+ CPU UART5, RS485 +(A) signal
Pin 5 RS485_3- CPU UART3, RS485 –(B) signal
Pin 6 RS485_3+ CPU UART3, RS485 +(A) signal
Pin 7 RS232_2_RXD CPU UART2, RS232 RXD signal
Pin 8 RS232_2_TXD CPU UART2, RS232 TXD signal
Pin 9 RS232_0_RXD CPU UART0, RS232 RXD signal
Pin 10 RS232_0_TXD CPU UART0, RS232 TXD signal
Pin 11 GND System Ground
Pin 12 +5V System +5V Power Output, No more than 1A Current output
Table 249 Connectivity Section
Attention
In order to use the Isolated Output, you need to add an external Isolated Power to the VDD_ISO and GND_ISO.
The power voltage should not exceed 24V.
The output current can achieve 500mA for every channel, but it also depends on the isolated power that is
connected.
In order to use the Isolated Input, you need to add a signal to the ISO_InputX and GND_ISO. A 2.4KΩ resistor, as
R6, can be added to limit the input current, as shown in the gure above. This resistor should work well for the
5-24V input signal. If your input signal is less than 5V, please change this input resistor.

1.
2.
3.
PPC-CM4-156 GPIO Port
Chipsee IPC Page 12 of 25

Isolated GPIO reduced schematic
GPIO Connector
GPIO Connector Pin Denition:
Pin Number Denition Description
Pin 12 24V_ISO Isolated Power +24V Input
Pin 11 GND_ISO Isolated Ground
PPC-CM4-156 GPIO Port
Chipsee IPC Page 13 of 25

USB Connectors
There are 2 x USB 3.0 Host, 1 x USB OTG onboard, as shown in the gure below.
USB HOST Connectors
The product has one USB Type-C OTG connector that works as a slave by default. You can
use it to establish a connection with the host PC and for downloading the system to the
eMMC of CM4 module.
GPIO Connector Pin Denition:
Pin 10 OUT1 Isolated Output 1
Pin 9 OUT2 Isolated Output 2
Pin 8 OUT3 Isolated Output 3
Pin 7 OUT4 Isolated Output 4
Pin 6 IN1 Isolated Input 1
Pin 5 IN2 Isolated Input 2
Pin 4 IN3 Isolated Input 3
Pin 3 IN4 Isolated Input 4
Table 250 GPIO Connector Pin-out
Attention
These two USB host connectors can drive 500mA for each channel at most.
These two USB host connectors, Zigbee and 4G/LTE come from the same USB HUB.
When you connect this product to the HOST PC through the Type-C port, the USB HUB will be disabled. As a
result, the two USB host connectors, Zigbee and 4G/LTE will not work.

1.
2.
3.
PPC-CM4-156 USB Connectors
Chipsee IPC Page 14 of 25

USB Type-C OTG Connector
LAN Connectors
LAN (RJ45) connector provides Ethernet connectivity over standardized Ethernet cables as
shown in the gure below. The integrated Ethernet interface supports up to 1 Gbps data
throughput. These Giga LAN signals come from the CM4 module directly.
RJ45 LAN Connector
WiFi & BT Module
The default PPC-CM4-156 without the CM4 does not include a Wi-Fi/BT module.
If you include a CM4 that has the Wi-Fi/BT module, the product will have Wi-Fi/BT feature.
The enclosed (CS19108RA4156P) variant of the product also includes an SMA connector for
an external WiFi/BT antenna, as illustrated in the gure below.
Warning
Be careful not to touch surrounding electronic components accidentally while plugging in USB devices into the
embedded Industrial PC version.
Remember to unplug the Type-C cable after ashing OS, otherwise the USB hosts won’t work.

1.
2.
Note
Use CAT5 or better cables to achieve full data throughput over maximum distance dened by the 1000BASE-T
standard (100m).

PPC-CM4-156 LAN Connectors
Chipsee IPC Page 15 of 25

WiFi+BT Antenna
3G/4G/LTE Module
The PPC-CM4-156 industrial Pi PC is equipped with a mini-PCIe connector that can connect
to a 3G/4G/LTE module. The customer will also need a SIM Card Holder and a 3G/4G/LTE
antenna to ensure 3G/4G/LTE works on the PPC-CM4-156. SIM card does NOT support hot
plug. Power o before inserting or removing SIM card.
Attention
The product does not come shipped with the Wi-Fi/BT module by default.

PPC-CM4-156 3G/4G/LTE Module
Chipsee IPC Page 16 of 25

SIM Card Direction
Figure 934: 3G/4G/LTE Module
Figure 935: SIM Card Holder and 3G/4G/LTE Antenna
Zigbee Module
The PPC-CM4-156 industrial Pi PC supports an onboard Zigbee module. The Zigbee
controller is TI CC2531, and the Raspberry Pi forum supports it.
For CS19108RA4156P, there is a connector on the backside of the case that you can use to
connect the external Zigbee antenna, as described in the gure below.
Attention
The product does not come shipped with the 3G/4G/LTE module by default. If you need to use 3G/4G/LTE, you can
contact us when placing an order, we can install the necessary hardware for you.

PPC-CM4-156 Zigbee Module
Chipsee IPC Page 17 of 25

Figure 936: Zigbee controller
PPC-CM4-156 Zigbee Module
Chipsee IPC Page 18 of 25

Zigbee Antenna
Attention
The product does not come with the Zigbee module by default.

PPC-CM4-156 Zigbee Module
Chipsee IPC Page 19 of 25

TF Card Slot
The PPC-CM4-156 industrial Pi PC features 1 x TF Card (micro SD) slot. A slot can address
up to 128GB of memory.
TF (micro SD) Card Slot
Attention
The SD is used for memory extension. It can’t be used for system boot-up.
This storage extension SD uses the same pins as WiFi on CM4. SD storage and WiFi can’t be used at the same
time.
The product does not come shipped with the TF card by default.

1.
2.
3.
PPC-CM4-156 TF Card Slot
Chipsee IPC Page 20 of 25