Chipsee PPC-A55-121 Manuale utente

Industrial PC

PPC-A55-121

PN: CS10768-RK3568-121P

Content can change at anytime, check documentation website for latest information.

www.chipsee.com

Contents

31. PPC-A55-121

41.1. Product Overview

51.2. Ordering Options

51.2.1. Operating System

61.2.2. Optional Features

61.3. Hardware Features

71.4. Power Input

81.5. Touch Screen

91.6. Connectivity

91.6.1. RS232+RS485+CAN+GPIO Connector

111.6.2. USB Connectors

121.6.3. LAN Connectors

131.6.4. WiFi & BT Module

141.6.5. 4G/LTE Module

151.7. M.2 SSD Slot

151.8. TF Card & SIM Card Slot

161.9. Audio Connectors

161.10. HDMI Connector

171.11. PROG Button

181.12. Mounting Procedure

181.13. Mechanical Specications

191.14. Disclaimer

191.15. Technical Support

Chipsee IPC Page 2 of 19

PPC-A55-121

Front View

Rear View

PPC-A55-121

Chipsee IPC Page 3 of 19

Side View 1

Side View 2

Product Overview

The Cortex -A55 series PPC-A55-121 (PN: CS10768-RK3568-121P) is a high-quality IP65-

compliant industrial panel PC. It features a 12.1” ten-point capacitive touch screen with a

resolution of 1024 x 768 pixels and a brightness of 400 cd/m .

Key Applications

Human Machine Interface HMI

Mobile Applications

Video Processing

•

PPC-A55-121 Product Overview

Chipsee IPC Page 4 of 19

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-A55-121 Industrial Panel PC is based around the powerful RK3568 System on Chip

(SoC), powered by the Rockchip RK3568 low-power processor which integrates a quad-core

Cortex -A55 processor.

The RK3568 supports multi-format video decoders and has a high-performance RAM

(LPDDR4X) 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 also be obtained from the Software Documentation section,

along with the detailed installation instructions.

Debian 11

Android 11

Buildroot Linux Qt 5.15

•

Note

You can order the PPC-A55-121 from the ocial Chipsee Store or from your nearest distributor.



•

Warning



PPC-A55-121 Ordering Options

Chipsee IPC Page 5 of 19

Optional Features

The PPC-A55-121 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.

Hardware Features

The PPC-A55-121 Industrial Panel 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.

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

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-A55-121

CPU Rockchip RK3568, Quad-core Cortex-A55 (2.0GHz)

RAM Samsung 2GB LPDDR4X, 4266 Mbps

eMMC 16GB

SSD Optional, supports M.2 2280 NVME SSD (PCI-E 3.0 x 2)

Storage TF Card, Supports up to 128GB SDHC

Display 12.1” LCD, 1024 x 768, High Brightness: 400 cd/m

HDMI 1 x HDMI OUT

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

High accuracy RTC with farad capacitor, can work 1 week after power o (default).

High accuracy RTC with lithium coin battery, can work 3 years after power o

(optional).

RS232 Default to 2 x RS232 (including 1 debug port). Up to 6 x RS232.1

RS485 Default to 2 x RS485. Optionally, these 2 x RS485 can be congured to RS232.1

CAN Default to 2 x CAN. Optionally, these 2 x CAN can be congured to RS232.

PPC-A55-121 Optional Features

Chipsee IPC Page 6 of 19

1(1,2)This product has 4 x UART by default, 6 x UART channels at most. The default conguration is 2 x RS232 and 2

x RS485, including 1 RS232 debug port. The 2 x CAN can be congured to RS232. UART can be swapped

between RS232 and RS485 modes easily, 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-A55-121 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. The polarity

and the pinout is clearly marked on the housing of the product as shown in the gure

below.

PPC-A55-121

GPIO 8 Channels Isolated IO, 4 x Input and 4 x Output

WiFi/BT Integrated WiFi/BT Module

4G/LTE Supported, Optional

Power Input From 12V to 36V

Current at 12V 1000mA Max at 12V

Power

Consumption 12W Typical

Working

Temperature From 0°C to +60°C

OS Android 11, Debian11, Buildroot Linux Qt 5.15

Dimensions PPC-A55-121 (PN: CS10768-RK3568-121P): 320 * 260 * 55.5mm

Weight PPC-A55-121 (PN: CS10768-RK3568-121P): 3100g

Mounting PPC-A55-121 (PN: CS10768-RK3568-121P): Panel, VESA

Table 138 Key Features

PPC-A55-121 Power Input

Chipsee IPC Page 7 of 19

Power Input

Note that the “+” sign represents the positive power input, it is printed 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-A55-121 Industrial Panel 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.

Figure 602: Capacitive Touch Connector

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 139 Power Connector

Note

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



Attention



PPC-A55-121 Touch Screen

Chipsee IPC Page 8 of 19

Connectivity

There are many connectivity options available on the PPC-A55-121 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, 2 x CAN and 4 x UART terminals (RS232/485).

RS232+RS485+CAN+GPIO Connector

The serial communication interfaces (RS485, RS232, and CAN) are routed to a 24-pin

3.81mm terminal, as illustrated in the gure below. Serial communication on both RS485

and RS232 interfaces can reach up to 115200 kbps.

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-A55-121 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 problem 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.

PPC-A55-121 Connectivity

Chipsee IPC Page 9 of 19

Isolated GPIO reduced schematic

The table below oers a detailed description of every pin:

RS232 / RS485 / CAN / GPIO Pin Denition:

Pin Number Denition Description

Pin 1 CAN0_H CAN H signal

Pin 2 CAN1_H CAN H signal

Pin 3 CAN0_L CAN L signal

Pin 4 CAN1_L CAN L signal

Pin 5 RS485_4- CPU UART4, RS485 -(B) signal

Pin 6 IN4 Isolated Input 4

Pin 7 RS485_4+ CPU UART4, RS485 +(A) signal

Pin 8 IN3 Isolated Input 3

Pin 9 RS485_3- CPU UART3, RS485 -(B) signal

Pin 10 IN2 Isolated Input 2

Pin 11 RS485_3+ CPU UART3, RS485 +(A) signal

Pin 12 IN1 Isolated Input 1

Pin 13 RS232_0_RXD CPU UART0, RS232 RXD signal

Pin 14 OUT4 Isolated Output 4

Pin 15 RS232_0_TXD CPU UART0, RS232 TXD signal

Pin 16 OUT3 Isolated Output 3

Pin 17 RS232_2_RXD CPU UART2, Debug RXD signal

Pin 18 OUT2 Isolated Output 2

Pin 19 RS232_2_TXD CPU UART2, Debug TXD signal

PPC-A55-121 RS232+RS485+CAN+GPIO Connector

Chipsee IPC Page 10 of 19

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