Version 1.1

Product Overview

The Cortex®-A8 series EPC/PPC-A8-070-R (PN: CS80480T070) is a high-quality industrial PC. It features a 7.0” resistive touch screen with a resolution of 800 x 480 pixels and brightness of 250 cd/m2.

It is available both as an embedded solution and as a device hosed in an aluminum casing with bezels, thus facilitating different installation options:

  • Installation on an industrial cabinet

  • Integration with the existing equipment

The EPC/PPC-A8-070-R Industrial PC is based around the powerful CS-SOM335X-V3 System on Module (SoM), powered by the AM3354 Arm® Cortex®-A8 microprocessor unit (MPU). The AM33554 MPU is enhanced with image, graphics processing, peripherals and industrial interface options such as EtherCAT and PROFIBUS. The devices support high-level operating systems (HLOS).

The microprocessor unit (MPU) subsystem is based on the ARM Cortex-A8 processor and the PowerVR SGX™ Graphics Accelerator subsystem provides 3D graphics acceleration to support display and gaming effects.

The AM33554 MPU does not generate extensive heat, so even the thin aluminum housing on PPC version delivers sufficient thermal dissipation.

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 specified. The table in the Hardware Features section provides information about the default options bundled with the product.


You can order EPC/PPC-A8-070-R from the official Chipsee Store or from your nearest distributor.

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.

  • Android 4.1

  • Linux with Qt 4.8

  • Linux with Qt 5.5

  • Debian 7.4

  • Debian 8.4

  • Angstorm v2012.12


The Software Documentation section provides a detailed instruction how to install different OS 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 support@chipsee.com for further assistance

Optional Features

The EPC/PPC-A8-070-R Industrial PC does not include WiFi/BT and/or 3G/4G modules by default. These modules are optional and can be selected at the Chipsee store during the ordering process.


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.

Hardware Features

The EPC/PPC-A8-070-R Industrial PC offers a board 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.

Table 254 Key Features



AM3354ZCZ100, Arm® Cortex®-A8, 1GHz


512MB DDR3




TF Card, Supports up to 32GB SDHC


7.0” LCD, 800 x 480 resolution px, brightness 250 cd/m2


Resistive touch


2 x USB 2.0 Host


1 x Channel 100M LAN


3.5mm output/input connector, 2W Internal Speaker






2 x RS232


2 x RS4851


1 x CAN1


8 Channels, 4 Input, 4 Output, 1000V DC Isolated


External USB WiFi/BT (optional)

Expansion Port




Power Input

From 6V to 42V

Current at 12V

400mA Max

Power Consumption

5W Typical

Working Temperature

From -20°C to +70°C


Multiple Choices (Operating System)


EPC-A8-070-R (PN: CS80480T070E): 190 x 112 x 28mm

PPC-A8-070-R (PN: CS80480T070P): 206 x 139 x 33mm


EPC-A8-070-R (PN: CS80480T070E): 410g

PPC-A8-070-R (PN: CS80480T070P): 830g


EPC-A8-070-R (PN: CS80480T070E): Embedded

PPC-A8-070-R (PN: CS80480T070P): Panel


The RS485 and CAN channels may be customized to the following arrangement:

  • 2 x RS485, 1 x CAN (Default)

  • 1 x RS485, 2 x CAN

Power Input

The EPC/PPC-A8-070-R Industrial PC can be powered by a wide range of input voltages: From 6V to 42V DC. The power input connector is a 3-pin, 3.81mm terminal. The polarity and the pinout is clearly marked on the housing of the PPC version, as well as on the PCB itself of the EPC version, as shown in the figure below.


Figure 723: Power Input (embedded/enclosed version)

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.

Table 255 Power Connector

Power Input Definition

Pin Number



Pin 1

Positive Input

DC Power Positive Terminal

Pin 2

Negative Input

DC Power Negative Terminal

Pin 3


Power System Ground


The system ground “G” is connected to power negative “-” on board.

Touch screen

EPC/PPC-A8-070-R is equipped with a resistive touch screen. The resistive touch screen is an ideal option for harsh industrial conditions due to its high immunity against high temperature, dirt, and dust. In addition, it does not require any special material to be operated; the resistive touch screen can be used with regular rubber gloves, fingers, or a plastic stylus.


Figure 724: Resistive Touch Connector

Size/Type: 7.0” high-temperature resistant, five-wire analog resistive touch screen
Surface Hardness: 3H
Service Life (MTBF): 35 million click events
Light Transmittance: > 81%


There are many connectivity options available on the EPC/PPC-A8-070-R industrial PC. It has 2 x USB 2.0 Host (can be customized to Host or OTG), 1 x Channel 100M LAN (RJ45) Ethernet connector supporting up to 1 Gbps, and 5 x UART terminals (RS232/RS485).


The serial communication interfaces (RS485, RS232, and CAN) are routed to a 12-pin 3.81mm terminal, as illustrated on the figure below.


Figure 725: Relation between serial pins on embedded vs. enclosed version of the EPC/PPC-A8-070-R Industrial PC

The table below offers more detailed description of every pin and its definition:

Table 256 Connectivity Section

RS232 / RS485 / CAN Pin Definition:

Pin Number



Pin 12


System +5V Power Output, No more than 1A Current output

Pin 11


UART0 of CPU, RS232 RXD Signal

Pin 10


UART0 of CPU, RS232 TXD Signal

Pin 9


UART1 of CPU, RS232 RXD Signal

Pin 8


UART1 of CPU, RS232 TXD Signal

Pin 7


UART2 of CPU, RS485 B Signal

Pin 6


UART2 of CPU, RS485 A Signal

Pin 5


UART4 of CPU, RS485 B Signal

Pin 4


UART4 of CPU, RS485 A Signal

Pin 3


DCAN0 of CPU, CAN H Signal

Pin 2


DCAN0 of CPU, CAN L Signal

Pin 1


Isolated Ground Output

USB Connectors

There are 2 x Type A USB HOST connectors onboard, as shown on the figure below.


Figure 726: USB HOST Connectors (embedded/enclosed PC version)


The OTG Connector is defined as HOST by default. If customer needs it work as OTG (slave), please solder a 0Ω 0603 Package Resistor to R119 and R121 as shown in the above.


Be careful not to touch surrounding electronic components accidentally while plugging in USB devices into the embedded Industrial PC version.

LAN Connectors

LAN (RJ45) connector provides Ethernet connectivity over standardized Ethernet cables as shown the figure below. The integrated Ethernet interface supports up to 1 Gbps data throughput.


Figure 727: RJ45 LAN Connectors (embedded/enclosed PC version)


Use CAT5 or better cables to achieve full data throughput over maximum distance defined by the 1000BASE-T standard (100m).


The EPC/PPC-A8-070-R Industrial PC has a 10 Pin 3.81mm GPIO Connector, as shown on the figure below, that is labeled as P18 on the PCB. The table below gives details about the definition of every Pin.


Figure 728: GPIO Connector


Isolated GPIO reduced schematic

Table 257 GPIO Connector Pin-out

GPIO Connector Pin Definition:

Pin Number



Pin 1


Isolated Power +5V Output

Pin 2


Isolated Ground

Pin 3


Isolated Output 1

Pin 4


Isolated Output 2

Pin 5


Isolated Output 3

Pin 6


Isolated Output 4

Pin 7


Isolated Input 1

Pin 8


Isolated Input 2

Pin 9


Isolated Input 3

Pin 10


Isolated Input 4


  • The GPIO has been Opt-Isolated and it uses the 24V Logic by default. The GPIO is driven by the on board VDD, you do not need an external isolated power input.

  • The 4 output channels can drive at most 500mA current on each channel.

  • The operator can use the power input that connects to Power Input Connector, if the operator doesn’t want to use an isolated power input.

  • Also, you can use the 5V voltage on-board as power input. The operator must solder a 0Ω resistor on R292 & R293 then you can connect the 5V voltage onboard to the Isolated Power Input Pin.

TF Card Slot

The EPC/PPC-A8-070-R Industrial PC features 1 x TF Card (micro SD) slot. It can address up to 32GB of memory.


Figure 729: TF (micro SD) Card Slot


The product does not come shipped with the TF Card by default.

Audio Connectors

The EPC/PPC-A8-070-R Industrial PC features some audio peripherals, as well. It has 1 x 3.5mm audio input jack and 1 x 3.5mm audio output jack.

On the embedded panel PC version, the pink connector is the audio input jack (line-in) and the blue connector is the audio output jack (line-out, typically around -10 dBV). On the enclosed panel PC version, both audio input and audio output are clearly marked on the figure below.


Figure 730: Audio I/O (embedded/enclosed PC version)

In addition, EPC/PPC-A8-070-R features a miniature 2W embedded speaker for audio reproduction, as well as a small buzzer for alarm/notification sounds.


Figure 731: 2W Micro Speaker and Buzzer

Boot DIP Switch

The EPC/PPC-A8-070-R Industrial PC supports boot from SD card. If you want to reflash the Operating System (OS), you can use the TF card for that purpose, combined with the DIP switch settings as illustrated in the figure below.

There is no need to alter the DIP switch settings during regular operation. However, if you need to reinstall the OS, please refer to the table below. Detailed information on how to re-flash the OS can be found in the Software Documentation.


Figure 732: Boot DIP Switch

Table 258 Boot Configuration Selection

Boot Config Select





















Mounting Procedure

The EPC/PPC-A8-070-R Industrial PC can be mounted with 4 x M4 screws, enabling simplified installation onto any standard mounting fixture. Other mounting options might also be supported according to the table in the Hardware Features section.

You can find detailed information about mounting in the Mount IPC Guide.

Mechanical Specifications


The outer mechanical dimensions of EPC-A8-070-R are 190 x 112 x 28mm (W x L x H). Please refer to the technical drawing in the figure below for details related to the specific product measurements.


Figure 733: EPC-A8-070-R Technical Drawing


For PPC-A8-070-R, the outer mechanical dimensions are 206 x 139 x 33mm (W x L x H).

Panel Mounting


Figure 734: Fixing PPC-A8-070-R industrial PC into panel


With the PPC-A8-070-R industrial PC, the operator can fix the PC into the panel by pushing it from the front inside the panel as described in the figure above. The recommended maximum thickness of the panel material is 8mm.

  1. Make sure the Panel PC is configured correctly. The Boot Switch is sitting inside the housing. To use it, the Panel PC has to be unmounted from the panel.

  2. Push the Panel PC straight into the Panel Hole until the unit sits flat on the panel as shown in the figure above.

  3. Use the mounting fixtures to lock the Panel PC into it’s place.


This document is provided strictly for informational purposes. Its contents are subject to change without notice. Chipsee assumes no responsibility for any errors that may occur in this document. Furthermore, Chipsee reserves the right to alter the hardware, software, and/or specifications set forth herein at any time without prior notice and undertakes no obligation to update the information contained in this document.

While every effort has been made to ensure the accuracy of the information contained herein, this document is not guaranteed to be error-free. Further, it does not offer any warranties or conditions, whether expressed orally or implied in law, including implied warranties and conditions of merchantability or fitness for a particular purpose. We specifically disclaim any liability with respect to this document, and no contractual obligations are formed either directly or indirectly by this document.

Despite our best efforts to maintain the accuracy of the information in this document, we assume no responsibility for errors or omissions, nor for damages resulting from the use of the information herein. Please note that Chipsee products are not authorized for use as critical components in life support devices or systems.

Technical Support

If you encounter any difficulties or have questions related to this document, we encourage you to refer to our other documentation for potential solutions. If you cannot find the solution you’re looking for, feel free to contact us. Please email Chipsee Technical Support at support@chipsee.com, providing all relevant information. We value your queries and suggestions and are committed to providing you with the assistance you require.