Chipsee PPC-A72-156-P User manual

Industrial PC
PPC-A72-156-P
PN: CS19108R156P
Content can change at anytime, check documentation website for latest information.
www.chipsee.com

Contents
31. PPC-A72-156-P
41.1. Product Overview
51.2. Ordering Options
51.2.1. Operating System
51.2.2. Optional Features
61.3. Hardware Features
71.4. Power Input
71.5. Touch Screen
81.6. Connectivity
81.6.1. RS232+RS485+CAN+GPIO Connector
101.6.2. USB Connectors
111.6.3. LAN Connectors
111.6.4. WiFi & BT Module
121.6.5. 4G/LTE Module
131.7. TF Card Slot
141.8. Audio Connectors
151.9. Power Button
151.10. Mounting Procedure
151.11. Mechanical Specications
161.12. Disclaimer
161.13. Technical Support
Chipsee IPC Page 2 of 16

PPC-A72-156-P
Front View
Rear View
PPC-A72-156-P
Chipsee IPC Page 3 of 16

Side View 1
Side View 2
Product Overview
The Cortex -A72/53 series PPC-A72-156-P (PN: CS19108R156P) is a high-quality industrial
panel 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
Mobile Applications
Video Processing
Machine Learning
Video Gaming
Process Control
Process Monitoring
ATM…
It is available both as an embedded solution and as a device hosed in an aluminum casing
with bezels, thus facilitating dierent installation options:
Installation on an industrial cabinet
Integration with the existing equipment
The PPC-A72-156-P Industrial Panel PC is based around the powerful CS-SOM-RK3399
System on Module (SoM), powered by the Rockchip RK3399 low-power processor which
integrates a dual-core Cortex -A72 and a quad-core Cortex -A53 with a separate NEON
coprocessor.
®
2
•
•
•
•
•
•
•
•
•
•
® ®
PPC-A72-156-P Product Overview
Chipsee IPC Page 4 of 16

*
The RK3399 supports multi-format video decoders and has a high-performance dual-
channel external memory interface (DDR3/DDR3L/LPDDR3/LPDDR4) capable of sustaining
demanding memory bandwidths. It also provides a complete set of peripheral interfaces.
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 Hardware Features section provides information about the default options
bundled with the product.
Operating System
This product comes with a pre-installed OS of your choice. Please see the list below for the
supported OSes, which can be also obtained from the Software Documentation section,
along with the detailed installation instructions.
Chipsee Linux*
Android 7.1
Debian 10
Chipsee Linux is based on buildroot that has been integrated with:
Chipsee Hardware Test Application
An initialization script for GPIO/Buzzer/Audio
Multiple libraries, such as the libQt5Sql to develop Qt application with SQL
Various packages, such as the ntfs-3g to use NTFS le system
Optional Features
The PPC-A72-156-P Industrial Panel PC does not include 4G/LTE module by default. The
module is optional and can be selected at the Chipsee store during the ordering process.
Note
You can order The PPC-A72-156-P Industrial Panel PC from the ocial Chipsee Store or from your nearest
distributor.

•
•
•
1.
2.
3.
4.
Warning
The Software Documentation section provides a detailed instruction on how to install dierent OSes on your own.
However, bear in mind that Chipsee can’t take the responsibility of inadequate installation procedure. If you “brick”
your device, please contact Chipsee Technical Support at [email protected] for further assistance

PPC-A72-156-P Ordering Options
Chipsee IPC Page 5 of 16

Hardware Features
The PPC-A72-156-P Industrial Panel PC oers a broad range of performance and
connectivity options for scalable integration, providing expandability to meet future needs.
Some of the key features are listed in the table below.
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-A72-156-P
CPU Rockchip RK3399, Dual-core Cortex-A72 (1.8GHz), Quad-core Cortex-A53
(1.4GHz)
RAM 4GB DDR3
eMMC 16GB
Storage TF Card, Supports up to 128GB SDHC
Display 15.6” LCD, 1920 x 1080, High Brightness: 400 cd/m
Touch 10-point capacitive touch screen
USB 1 x USB 2.0 HOST, 1 x USB 3.0 HOST, 1 x USB Type-C
LAN 1 x RJ45, GbE
Audio 3.5mm Audio In/Out Connector, 2W Internal Speaker
Buzzer Yes
RTC Yes
RS232 3 x RS232 (Optional 5 x RS232 at most, 1 debug port)1
RS485 2 x RS4851
GPIO 8 Channels
WiFi/BT Integrated WiFi/BT Module
4G/LTE Supported, Optional
Power Input From 12V to 36V
Current at 15V 2.2A Max
Power Consumption 16W Typical, 26.4W Max
Working
Temperature From 0°C to +60°C
OS Android 7.1, Debian 10, Buildroot Linux Qt5.14
Dimensions PPC-A72-156-P (PN: CS19108R156P): 422 × 271 × 52.5mm
Weight PPC-A72-156-P (PN: CS19108R156P): 4500g
Mounting PPC-A72-156-P (PN: CS19108R156P): Panel, VESA
2
PPC-A72-156-P Hardware Features
Chipsee IPC Page 6 of 16

1(1,2)This product has 5 x UART channels in total. The default conguration is 3 x RS232 and 2 x RS485, including 1
debug port. UART can be swapped between RS232 and RS485 modes easily, so if you need a dierent RS232/
RS485 conguration, please get in touch with the Chipsee Technical Support at [email protected]
Power Input
The PPC-A72-156-P Industrial Panel PC can be powered by a wide range of input voltages:
From 12V to 36V DC. The power input connector is a 3-pin, 3.81mm terminal.
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 a PCB of the embedded version. The “-” terminal is shorted to
the ground.
Touch Screen
The PPC-A72-156-P Industrial Panel PC uses a 10-point capacitive touch screen.
Table 103 Key Features
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 104 Power Connector
Note
The system ground “G” is connected to power negative “-” on board.

PPC-A72-156-P Power Input
Chipsee IPC Page 7 of 16

Figure 453: Capacitive Touch Screen Connector
Connectivity
There are many connectivity options available on the PPC-A72-156-P industrial PC. It has 1 x
USB 2.0 HOST, 1 x USB 3.0 HOST, 1 x USB Type-C, 1 x network connector (RJ45) supporting
up to 1 Gbps, 8 x GPIO and 5 x UART terminals (RS232/485).
RS232+RS485+CAN+GPIO Connector
The serial communication interfaces (RS485, RS232, and CAN) are routed to a 12-pin
3.81mm terminal, as illustrated in the gure below. Serial communication on both RS485
and RS232 interfaces can reach up to 115200 kbps.
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-A72-156-P 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-A72-156-P Connectivity
Chipsee IPC Page 8 of 16

Isolated GPIO reduced schematic
The table below oers more detailed description of every pin and its denition:
RS232 / RS485 / CAN / GPIO Pin Denition:
Pin Number Denition Description
Pin 1 CAN1_H CAN H signal
Pin 2 CPU_RS232_2_RXD CPU UART2, CPU RS232 RXD signal
Pin 3 CAN1_L CAN L signal
Pin 4 CPU_RS232_2_TXD CPU UART2, CPU RS232 TXD signal
PPC-A72-156-P RS232+RS485+CAN+GPIO Connector
Chipsee IPC Page 9 of 16

USB Connectors
There are 2 x USB HOST connectors onboard which includes 1 x USB 2.0 HOST, 1 x USB 3.0
HOST, 1 x USB Type-C , as shown in the gures below.
RS232 / RS485 / CAN / GPIO Pin Denition:
Pin 5 RS485_4- USB UART4, RS485 -(B) signal
Pin 6 IN4 Isolated Input 4
Pin 7 RS485_4+ USB UART4, RS485 +(A) signal
Pin 8 IN3 Isolated Input 3
Pin 9 RS485_3- USB UART3, RS485 -(B) signal
Pin 10 IN2 Isolated Input 2
Pin 11 RS485_3+ USB UART3, RS485 +(A) signal
Pin 12 IN1 Isolated Input 1
Pin 13 RS232_2_RXD USB UART2, RS232 RXD signal
Pin 14 OUT4 Isolated Output 4
Pin 15 RS232_2_TXD USB UART2, RS232 TXD signal
Pin 16 OUT3 Isolated Output 3
Pin 17 RS232_1_RXD USB UART1, RS232 RXD signal
Pin 18 OUT2 Isolated Output 2
Pin 19 RS232_1_TXD USB UART1, RS232 TXD signal
Pin 20 OUT1 Isolated Output 1
Pin 21 GND System Ground
Pin 22 GND_ISO Isolated Ground
Pin 23 VCC5V System 5V output, up to 1A
Pin 24 VDD_ISO Isolated Power Input,support 5V~24V
Table 105 Connectivity Section
Attention
The 120Ω match resistor for CAN bus is NOT mounted by default.
The 120Ω match resistor for RS485 is already mounted by default.
This product supports changing 2 x RS485 to 2 x RS232 and supports up to 5 x RS232 (include one debug port).
The GPIO has been opt-isolated, you can use an external isolated power input but the power input range should
be from 5V to 24V DC.
The 4 output channels can drive at most 500mA current on each channel.

•
•
•
•
•
PPC-A72-156-P USB Connectors
Chipsee IPC Page 10 of 16