Janz Tec emPC-CXR User manual

PROPRIETARY NOTICE
All rights reserved by Janz Tec AG.
No parts of this technical manual may be modified, copied or reproduced
in any form or by any means for commercial use without the prior written
permission of Janz Tec AG, Germany.
All instructions, information and specification contained in this manual
are for reference only and remain subject to change without
announcement.
emPC-CXR
rugged embedded PC
(Hardware Manual)
Version V1.2
refers to product revision no.
V1.0

Title:
rugged embedded PC
File:
j:\as\entwicklung\projekte\hw\empc\empc_cxr\doc\manual_empc-cxr_hardware.doc
Pattern:
\\ntserv5\janzgrp\as\entwicklung\formulare\entwicklung (ew)\ew_manual.dot
Created:
Stefan Althöfer, 21.05.2014
Last Update:
Stefan Althöfer, 16.11.2017
© Janz Tec AG 2015
Im Dörener Feld 8
D-33100 Paderborn, Germany
Tel.:
[phone]
FAX:
[phone]
email:
[email protected]
Internet:
www.janztec.com

emPC-CXR (Hardware Manual) •Contents i
Rev. V1.2 © Janz Tec AG
Contents
1 Introduction 5
1.1 Features...............................................................................................................................5
1.1.1 Hardware ........................................................................................................................5
1.1.2 Software..........................................................................................................................5
1.2 Functional Overview ............................................................................................................6
2 Safety Instructions 7
2.1 Installation and Maintenance...............................................................................................7
2.2 Ambient and Environmental Conditions...............................................................................8
3 Installation 9
3.1 Mounting ..............................................................................................................................9
3.1.1 Mounting Screws ..........................................................................................................10
3.1.2 Mounting Wall...............................................................................................................10
3.2 Connectors and Operators.................................................................................................11
3.2.1 POWER IN....................................................................................................................12
3.2.2 VGA connector..............................................................................................................12
3.2.3 Ethernet Interfaces LAN1 and LAN2 ............................................................................13
3.2.4 USB 2.0 Host Interfaces USB1 and USB2 ...................................................................13
3.2.5 CAN ..............................................................................................................................13
3.2.6 RS485...........................................................................................................................14
3.2.7 RS232...........................................................................................................................14
3.2.8 Digital IO .......................................................................................................................14
3.3 Application Hints ................................................................................................................16
3.3.1 Right Angle Cable.........................................................................................................16
3.3.2 M12 Y Adapters............................................................................................................16
4 Maintenance 17
4.1 Handling Top Cover...........................................................................................................18
4.2 Battery Replacement .........................................................................................................20
4.3 mSATA...............................................................................................................................20
5 Hardware details 22
5.1 PCI Express.......................................................................................................................22
5.2 Ethernet..............................................................................................................................22
5.2.1 LAN1.............................................................................................................................22
5.2.2 LAN2.............................................................................................................................22
6 FPGA expansion subsystem 23
6.1 Control Registers ...............................................................................................................24
6.1.1 Feature detection..........................................................................................................24
6.1.2 Interrupt programming ..................................................................................................24
6.1.3 Function Reset..............................................................................................................25
6.1.4 Internal I2C bus .............................................................................................................25
6.2 CAN Interface.....................................................................................................................26
6.2.1 CAN address space......................................................................................................26
6.2.2 CAN termination and LEDs...........................................................................................26
6.3 Serial Port Interface ...........................................................................................................27
6.3.1 Serial Port address space.............................................................................................27
6.4 NVRAM..............................................................................................................................28
6.5 Digital IO ............................................................................................................................29
6.6 FPGA Reprogramming ......................................................................................................30

ii emPC-CXR (Hardware Manual) •Contents
© Janz Tec AG Rev. V1.2
7 System Control 31
7.1.1 I2C Address..................................................................................................................33
7.1.2 I2C Registers................................................................................................................33
7.1.3 Command Codes..........................................................................................................38
8 Appendices 39
8.1 Technical Data...................................................................................................................39
8.2 References.........................................................................................................................41
8.3 M12 Connector Ratings .....................................................................................................42
8.4 Dimensions ........................................................................................................................43
8.5 Product History...................................................................................................................44
8.6 Manual History...................................................................................................................45

emPC-CXR (Hardware Manual) •Contents iii
Rev. V1.2 © Janz Tec AG
List of Figures
figure 1: block diagram .............................................................................................................................6
figure 2: Mounting guidelines ...................................................................................................................9
figure 3: front view with connectors........................................................................................................11
figure 4: Power Supply Input ..................................................................................................................12
figure 5: DIO structure ............................................................................................................................15
figure 6: right angle cable example ........................................................................................................16
figure 7: M12 Y-connectors ....................................................................................................................16
figure 8: Handling the Top Cover ...........................................................................................................18
figure 9: Removing and replacing coin cell battery ................................................................................20
Figure 10: emPC-CXR system supervision............................................................................................31
figure 11: System control by power supply voltage (VIN) ......................................................................32
figure 12:System control by remote control input (VS)...........................................................................32
Figure 13: PMON I2C Protocols.............................................................................................................33
figure 14: housing dimensions................................................................................................................43
List of Tables
table 1: Power supply connector ............................................................................................................12
table 2: VGA connector ..........................................................................................................................13
table 3: Ethernet connector ....................................................................................................................13
table 4: USB connector with USB cables colour codes..........................................................................13
table 5: M12 CAN connector ..................................................................................................................13
table 6: M12 RS485 connector...............................................................................................................14
table 7: M12 RS232 connector...............................................................................................................14
table 8: M12 RS232 connector...............................................................................................................14
Table 9: COM Express PCIe lane usage ...............................................................................................22
Table 10: PCI identification.....................................................................................................................23
Table 11: Local address spaces.............................................................................................................23
Table 12: Control registers.....................................................................................................................24
Table 13: NVRAM address (128KByte NVRAM)....................................................................................28
Table 14: Digital IO registers..................................................................................................................29

iv emPC-CXR (Hardware Manual) •Contents
© Janz Tec AG Rev. V1.2
About this Manual
This is the hardware manual for the emPC-CXR rugged embedded PC.
Conventions
If numbers are specified in this manual, they will be either decimal or hexadecimal. We use C-notation
to identify hexadecimal numbers (the 0x prefix).
If we refer to low active signal names, they will suffixed by a “#” character.
Some parts of the contains notices you have to observe to ensure your personal safety, or to prevent
damage to property. These are visually marked with the following alert symbols:
DANGER
Indicates that death or severe personal injury will result if proper precautions are not
taken.
WARNING
Indicates that death or severe personal injury may result if proper precautions are not
taken.
CAUTION
Indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
Indicates that damage to equipment can result if proper precautions are not taken.
Indicates information that we think you should have read to save your time by avoiding
common problems. Important suggestions that should be followed will also be marked
with this sign.
Acronyms and Abbreviations
EMC Electromagnetic capability.
ESD Electrostatic discharge.
GND System ground potential. Inside the product this is connected to the metal housing,
which might be connected to protective earth by the installation. There exist some
isolated reference grounds for communication interfaces or IO. These reference
signals are referred to as GND-x, where x indicates function.

emPC-CXR (Hardware Manual) •Introduction 1 - 5
Rev. V1.2 © Janz Tec AG
1 Introduction
1.1 Features
1.1.1 Hardware
•COM Express Processing Core
oIntel Core i7-3517UE
oIntel Celeron 1047UE
•DDR3 memory as defined by COM Express Module
•Internal mSATA socket for SATA based SSD modules
•2 x 10/100/1000 Mbit/s Ethernet on M12 connector
•2 x USB interface on M8 connector
•128 kB of nvSRAM (which does not require battery backup)
•Battery backed up RTC
•COM express internal watchdog function
•Power supply/temperature monitoring
•VGA display connector D-SUB
•Two 5 pin M12 connectors for serial ports. Customizable as:
oCAN (isolated)
oRS232/RS485 (isolated)
•4 digital IO (in/out) on M12 connector (isolated, externally powered)
•System Power supply 9..34 VDC on M12 connector
•Power LED
•Optional 2x16 character display and user defined buttons
1.1.2 Software
Supported by
•Windows 7
•Windows 7 embedded
•Linux
Contact Janz Tec for more information about the available software packages.

1 - 6 emPC-CXR (Hardware Manual) •Introduction
© Janz Tec AG Rev. V1.2
1.2 Functional Overview
The functional components of the product are shown in figure 1.
SATA
GBE
2x 10/100/1000BaseT
Power Button
mSATA
9..34V DCPower
(Dual-In)
input
DC/DC
(non
isolated)
Power
Management
Intel
i210IT
Power LED
USB 2.0
PCIe
Connector-Board
Carrier-Board
1xPCIe
VGA
NvSRAM
ComExpress Modul
Type 6
SJA1000
SJA1000
Remote Control
USB 2.0
GBE-Transf.
GBE-Transf.
OLED Display
2x16
Temp. Sensor
I²C
I²C
SUS_Sx / PWR_Btn / PWR_OK
Spartan6
LX25T
UART
PCIe - Local Bus
Bridge
UART
RS232
Transceiver
DC/DC CAN
Transceiver
Isolator
CAN1/COM1
Isolator
Rs485
Transceiver
RS232
Transceiver
DC/DC CAN
Transceiver
Isolator
CAN2/COM2
Isolator
Rs485
Transceiver
IsolatorIsolator Power
Switch
M8 Socket
M8 Socket
M12 Plug
T-coded
M12 Socket
X-coded
M12 Socket
M12 Socket
A/B coded
M12 Socket
A/B coded
Factory
Option
power supply input refers to internal
logik ground wich is connected to the
housing
optional
optional
figure 1: block diagram

emPC-CXR (Hardware Manual) •Safety Instructions 2 - 7
Rev. V1.2 © Janz Tec AG
2 Safety Instructions
Refer to page iv for explanation of the warning notice system.
The product described in this documentation may be operated only by personnel qualified for the
specific task in accordance with the relevant documentation for the specific task, in particular its
warning notices and safety instructions. Qualified personnel are those who, based on their training and
experience, are capable of identifying risks and avoiding potential hazards when working with these
products.
2.1 Installation and Maintenance
The power supply of the product operates with hazardous voltages.
DANGER: Electrical Shock
Danger to life.
This product operates with 9..34 V DC SELV power supply. Do not connect this product
to an improper power supply (No AC power, no more than 34 V DC or no non-SELV
circuit)!
DANGER: Electrical Shock
Danger to life.
The IO interfaces (connectors) of the product are only suited to be connected to SELV
circuits. Use interfaces (connectors) for their intended use only.
This product must not be connected to telecommunication networks (TNV circuits).
CAUTION: Explosive Risk
The installed computer board is equipped with a Lithium battery.
Danger of explosion if battery is incorrectly replaced. Replace only with battery of the
same or equivalent type.
CAUTION: Fire Risk
The digital IO must be powered by a SELV power supply, that complies with the
requirements of a limited energy source (LPS) (By using an appropriate supply or an
external fuse).
WARNING: Burns Hazard
The product generates considerable amount of heat. The housing transports this heat to
the environment and therefore gets hot. Caution when touching the housing, burns
hazard!
To comply with UL/IEC/EN 60950-1: If the product is not supplied by a limited current
circuit, then a disconnection means - easily accessible and identifiable - has to be
provided in the final installation to separate the equipment from all power sources.

2 - 8 emPC-CXR (Hardware Manual) •Safety Instructions
© Janz Tec AG Rev. V1.2
2.2 Ambient and Environmental Conditions
CAUTION: Damage
Do not operate the product beyond the specified ambient conditions
DANGER: Explosive Risk
Do not operate the product in potentially explosive atmosphere..
NOTICE: EMI
This product is a class A device. This product may cause radio interference. In this case
the user must take adequate measures.
NOTICE
UL Applications: For outdoor use, the product has to be mounted in a suitable electrical
enclosure complying with enclosure requirement of UL50, UL50E and the max. supply
voltage shall be 30VDC in normal and single fault condition to comply with voltage
requirements of UL60950-2-22.

emPC-CXR (Hardware Manual) •Installation 3 - 9
Rev. V1.2 © Janz Tec AG
3 Installation
CAUTION
The product is designed as a fan less computer system. Nevertheless a certain amount
of heat is generated inside the housing. The housing transports this heat to the
environment. Caution when touching the housing, burns hazard!
The product can be operated with DC power supply from 9 to 34 V.
3.1 Mounting
The emPC-CXR is intended to be mounted on a flat surface wall.
NOTICE
The product must be mounted exactly as indicated in figure 2 to allow the required
natural heat transfer. Derivations of < 5 ° do not matter.
The indicated area must be free of obstacles which prevent heat transfer.
There should be no space between the wall and the product (use no spacers for
mounting).
55mm 55mm
100mm
100mm
Above
Below
Left Right
Front
Above
Below
Cool-Air
Hot-Air
Wall
figure 2: Mounting guidelines

3 - 10 emPC-CXR (Hardware Manual) •Installation
© Janz Tec AG Rev. V1.2
NOTICE
The ambient temperatures below, left, right and in front of the product must not exceed
the specified maximum ambient temperature.
3.1.1 Mounting Screws
The product must be mounted with M6 Screws with appropriate washers. Stainless steel is
recommended in harsh environment. The washers may have a maximum diameter of 15 mm.
3.1.2 Mounting Wall
NOTICE
The mounting wall must have enough structural integrity at high temperatures. The Case
temperature of the product will be approximately 15 K higher than the ambient
temperature.

emPC-CXR (Hardware Manual) •Installation 3 - 11
Rev. V1.2 © Janz Tec AG
3.2 Connectors and Operators
Below the VGA connector you find an M5 thread for an additional earth connection. EMI Tests were
passed without extra earth connection. However, during EMI testing, earth connection was established
with the shields of the IO cables (VGA, LAN, …).
The green power LED between the USB connectors lights when the system is running. It does not
light when the system is in power down mode even if power is applied at the power connector.
NOTICE
Do not actuate connectors when power is applied.
NOTICE
All connectors (M12/M8/DSUB) are not sealed when no mating connector is present. Use
a screw plug to seal unused connectors.
NOTICE
Mechanical actuation of M12/M8 connectors is prohibited below -25 °C.
LAN1LAN2POWERCAN/Serial 2
Digital IOCAN/Serial 1 USB1USB2
figure 3: front view with connectors

3 - 12 emPC-CXR (Hardware Manual) •Installation
© Janz Tec AG Rev. V1.2
3.2.1 POWER IN
The system power supply is connected with a 4 pin T-coded M12 male connector.
DANGER
The product may only be operated with power supplies which can be considered SELV
circuits.
The return of the power supply (pin 4 = GND) is connected to the internal system GND
(via EMI filter chokes). The internal system GND is connected to the housing internally.
Hence the shells of all connectors are on system GND potential.
To comply with UL/IEC/EN 60950-1 : If the product is not supplied by a limited current
circuit, then a disconnection means - easily accessible and identifiable - has to be
provided in the final installation to separate the equipment from all power sources.
The specified power supply voltage range is defined at the input connector of the
product. At low input voltage and high system load, a high input current of several
ampere will flow. This can lead to substantial drop on the power input cable (even when
using 1.5 mm² M12 cable assemblies).
3.2.2 VGA connector
Analog VGA graphics connector as supplied by the COMexpress module.
4 pin male M12 T-coded
1
VIN-A (9..34V DC)
2
VIN-B (9..34V DC)
3
VS
4
GND
table 1: Power supply connector
VIN-A
Polarity-Reversal
Protection
VS
VIN-B
GND
Power
Supplies
Control
Input
System
Ground
Housing/
Connector-
Shields
figure 4: Power Supply Input

emPC-CXR (Hardware Manual) •Installation 3 - 13
Rev. V1.2 © Janz Tec AG
3.2.3 Ethernet Interfaces LAN1 and LAN2
Ethernet interfaces of the motherboard. The Ethernet physics is 10/100/1000BaseT, available through
the shielded M12 connectors.
3.2.4 USB 2.0 Host Interfaces USB1 and USB2
2 USB 2.0 host interfaces are available through 4 pin M8 female connectors.
The USB connectors do not provide standby power, thus wake on USB is not possible.
3.2.5 CAN
If the product is equipped with CAN interface(s), 5 pin A-coded M12 female connectors are equipped
for the CAN.
15 pin female HD-Sub
1
Red
9
+5V
2
Green
10
GND
3
Blue
11
N/C
4
N/C
12
DDC Data
5
GND
13
HSync
6
GND
14
VSync
7
GND
15
DDC Clock
8
GND
table 2: VGA connector
8 pin female M12 X-coded
1
MDI0+
5
MDI3+
2
MDI0-
6
MDI3-
3
MDI1+
7
MDI2+
4
MDI1-
8
MDI2-
table 3: Ethernet connector
4 pin M8
1
+5V (red)
2
USB- (white)
3
GND (black)
4
USB+ (green)
table 4: USB connector with USB cables colour codes
5 pin female M12 A-coded
1
NC
2
NC
3
GND-CAN
4
CAN-H
5
CAN-L
table 5: M12 CAN connector

3 - 14 emPC-CXR (Hardware Manual) •Installation
© Janz Tec AG Rev. V1.2
3.2.6 RS485
If the product is equipped with RS485 interface(s), 5 pin B-coded M12 female connectors are
equipped.
3.2.7 RS232
If the product is equipped with RS232 interface(s), 5 pin B-coded M12 female connectors are
equipped.
3.2.8 Digital IO
4 digital IO signals are available on 8 pin A-M12 female connector.
CAUTION
The digital IO must be powered by a SELV power supply, that complies with the
requirements of a limited energy source (LPS) (By using an appropriate supply or an
external fuse).
Digital IO pins drive VIN-DIO to the output pins (high side switch). Each digital IO pins can be read
back so that it can be used as input as well. See figure 5 for details.
5 pin female M12 B-coded
1
NC
2
DM (A)
3
GND-RS485
4
DP (B)
5
NC
table 6: M12 RS485 connector
5 pin female M12 B-coded
1
RTS (out)
2
TxD (out)
3
GND-RS232
4
RxD (in)
5
CTS (in)
table 7: M12 RS232 connector
8 pin female M12 A-coded
1
VIN-DIO (10..34V DC)
2
DIO4
3
DIO3
4
DIO2
5
DIO1
6
NC
7
NC
8
GND-DIO
table 8: M12 RS232 connector

emPC-CXR (Hardware Manual) •Installation 3 - 15
Rev. V1.2 © Janz Tec AG
Each port pin (DIO1…DIO4) is able to source 500mA into a load. The sum of all output currents
should be limited to 1A.
NOTICE
When outputs are turned on, they source power from VIN-DIO to the output pin. If you
use a pin as input, make sure you never turn on the corresponding output. Damage to
the driving source may happen otherwise.
VIN-DIO
VN330SP
Polarity
Reversal
Protection
GND-DIO
DIGIO
Output Register
Input Register
figure 5: DIO structure

3 - 16 emPC-CXR (Hardware Manual) •Installation
© Janz Tec AG Rev. V1.2
3.3 Application Hints
3.3.1 Right Angle Cable
When using right angle M8/M12 connectors, you have to obey the exit direction of the cables when
planning the cabling. In figure 6 you find an example with all right angle cables.
3.3.2 M12 Y Adapters
For applications with fieldbus connections that need to pass-through, Y-adapters can be used to
provide two sockets for in-coming and out-going cables.
Examples or such adapters are found below:
•M12 5pol A-coded male to female/male: Phoenix Contact SAC-5PY-M/F-M VP SH.
•M12 5pol A-coded male to female/female: Phoenix Contact SAC-5PY-M/2XF VP SH.
LAN1LAN2POWERCAN/Serial 2
Digital IOCAN/Serial 1 USB1USB2
figure 6: right angle cable example
Female Male Female Female
Male Male
figure 7: M12 Y-connectors

emPC-CXR (Hardware Manual) •Maintenance 4 - 17
Rev. V1.2 © Janz Tec AG
4 Maintenance
NOTICE
Always follow common ESD practice when you service the product!
All serviceable parts can be reached by removing the top cover of the product.
Task
Top
Cover
Remarks
Replace mSATA
remove
Replace Battery
remove
NOTICE
All cables should be removed before removing the top cover.

4 - 18 emPC-CXR (Hardware Manual) •Maintenance
© Janz Tec AG Rev. V1.2
4.1 Handling Top Cover
To remove/install the top cover, you need a Torx-T20 tool. A stainless steel tool is preferred.
To remove the top cover, refer to the following instructions:
•Remove the 10 top cover screws as indicated in figure 8
•Lift of the top cover in direction of the screws. Do not apply force in any other direction
(rotation, horizontal force), else you might damage the internal high density connector which
connects the connectors to the main board.
•Obey that you do not damage the connectors and components on the front panel PCB when
you handle the removed top cover.
To install the top cover, refer to the following instructions:
•Check that the sealing is properly installed in its groove
•If IP67 is required, check the integrity of the sealing. If it is damaged, the sealing can be
removed and replaced.
•Put the cover onto the housing, gently assigning the high density connector.
•Re-Apply all screws (including the contact washer). Recommended torque: 2.6 Nm.
figure 8: Handling the Top Cover