Chipsee PPC-A55-121 User manual

Industrial PC
PPC-A55-121
PN: CS10768-RK3568-121P
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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
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PPC-A55-121
Front View
Rear View
PPC-A55-121
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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
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PPC-A55-121 Product Overview
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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
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Note
You can order the PPC-A55-121 from the ocial Chipsee Store or from your nearest distributor.
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Warning
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PPC-A55-121 Ordering Options
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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.
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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.
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PPC-A55-121 Optional Features
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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
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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.
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Attention
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PPC-A55-121 Touch Screen
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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.
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PPC-A55-121 Connectivity
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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
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USB Connectors
There are 2 x USB HOST and 1 x USB DEVICE (for ashing OS) ports onboard: 1 x USB 2.0
HOST, 1 x USB 3.0 HOST, 1 x USB Type-C , as shown in the gures below.
USB 2.0 HOST Port (embedded / enclosed PC version)
RS232 / RS485 / CAN / GPIO Pin Denition:
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, supports 5V~24V
Table 140 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, supports changing 2 x CAN to 2 x RS232, providing up to 6
x RS232 (including one debug port).
The GPIO has been optical isolated and it uses the 24V logic by default. You can use an external isolated power
input but the power input range should be from 5V to 24V DC.
The 4 GPIO output channels can drive at most 500mA current on each channel.
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PPC-A55-121 USB Connectors
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USB 3.0 HOST Port (embedded / enclosed PC version)
USB Type-C Port (embedded / enclosed PC version)
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.
Warning
Be careful not to touch surrounding electronic components accidentally while plugging USB devices into the
embedded IPC version.
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PPC-A55-121 LAN Connectors
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RJ45 LAN Connector
WiFi & BT Module
The PPC-A55-121 Industrial Panel PC is equipped with the popular Realtek RTL8821CS
WiFi/BT module which supports BT/BLE 2.1/3.0/4.2, as well as 802.11ac/abgn 433Mbps
2.4/5.8 GHz Wireless LAN (WLAN).
Figure 603: RTL8821CS WiFi/BT Module
The PPC-A55-121 includes an SMA connector for an external WiFi/BT antenna, as illustrated
in the gure below.
Note
Use CAT5 or better cables to achieve full data throughput over maximum distance dened by the 1000BASE-T
standard (100m).
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PPC-A55-121 WiFi & BT Module
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WiFi+BT Antenna SMA
4G/LTE Module
The PPC-A55-121 Industrial Panel PC is equipped with a mini-PCIe connector that can
connect a 4G/LTE module. The customer will also need a SIM Card Holder and a 4G/LTE
Antenna Connector to ensure 4G/LTE works on the PPC-A55-121. SIM card does NOT
support hot plug. Power o before inserting or removing SIM card.
Figure 604: mini-PCIe Connector & 4G Module
Figure 605: SIM Card Holder & 4G Antenna
SIM Card Direction
Attention
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PPC-A55-121 4G/LTE Module
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M.2 SSD Slot
There is a M.2 slot on the PPC-A55-121 that allows an optional SSD. The M.2 slot is capable
of holding a PCI-E 3.0 x 2, 2280 NVME SSD. The PPC-A55-121 does not come shipped with an
SSD by default, if you want a dierent conguration you can consult us when placing an
order.
M.2 2280 Slot for PCI-E 3.0 x 2 NVME SSD
TF Card & SIM Card Slot
The PPC-A55-121 Industrial Panel PC features 1 x TF Card (micro SD) slot and 1 x SIM Card
slot. TF Card can address up to 128GB of storage.
TF (micro SD) Card & SIM Card Slot
The product does not come shipped with the 4G/LTE module by default. The customer can choose the 4G/LTE module
option when placing an order, we will install all the necessary components.
Note
The product does not come shipped with the TF Card by default.
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PPC-A55-121 M.2 SSD Slot
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Audio Connectors
The PPC-A55-121 Industrial Panel PC features some audio peripherals. It has a 3.5mm
audio input/output jack, an internal speaker, as well as a small buzzer.
Audio Connector (enclosed PC version)
The miniature 2W embedded speaker is handy for audio reproduction, the small buzzer can
play alarm/notication sounds.
Figure 606: 2W Micro Speaker and Buzzer
HDMI Connector
The PPC-A55-121 Industrial Panel PC is equipped with 1 x HDMI OUT connector. The HDMI
connector allows connecting an additional (external) monitor. HDMI output resolution can
be congured by the software.
Attention
By plugging in the headphone cable, the internal speaker will be disabled automatically.
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PPC-A55-121 Audio Connectors
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HDMI Connector
PROG Button
The PPC-A55-121 Industrial Panel PC has one button on the board marked as PROG, as
shown in the gure below.
When the button is pressed before powering up, the PPC-A55-121 will enter MASKROM
mode. In this mode you can use a USB Type-C cable to upgrade its operating system. You
can use this feature to ash another OS to the internal eMMC.
When the button is not pressed before and during power up, the PPC-A55-121 will boot
normally.
There is no need to press the button during regular operation. However, if you need to ash
the OS in MASKROM mode, the button will be used. Please refer to the software documents
for more information.
PROG Button
PPC-A55-121 PROG Button
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Mounting Procedure
You can mount PPC-A55-121 with VESA mounting: 100 x 100 mm, 4 x M4 (6mm) screws.
You can also mount PPC-A55-121 with panel mounting method.
You can nd detailed information about mounting in the Mount IPC Guide.
Mechanical Specifications
For PPC-A55-121, the outer mechanical dimensions are 320 * 260 * 55.5mm (W x L x H).
Attention
Please make sure the display is not exposed to high pressure when mounting into an enclosure.
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PPC-A55-121 Mounting Procedure
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Disclaimer
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 specications set forth herein at any time without prior
notice and undertakes no obligation to update the information contained in this
document.
While every eort 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 oer any warranties or conditions, whether expressed orally or implied in law,
including implied warranties and conditions of merchantability or tness for a
particular purpose. We specically disclaim any liability with respect to this
document, and no contractual obligations are formed either directly or indirectly by
this document.
Despite our best eorts 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 diculties or have questions related to this document, we encourage
you to refer to our other documentation for potential solutions. If you cannot nd the
solution you’re looking for, feel free to contact us. Please email Chipsee Technical Support at
[email protected], providing all relevant information. We value your queries and
suggestions and are committed to providing you with the assistance you require.
PPC-A55-121 Disclaimer
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