Hardware Manual
Contents
1. 2013 Alekto 2 User Manual 2 Position of Connectors and Functions 1 2 3 Digital 1 O Eight input output signals at TTL level are provided The signal direction is configurable in groups of two For input mode the change of at least one input signal generates an interrupt See Section 4 12 on page 12 for electrical characteristics 1 2 4 PC One port for external I C function is provided The signals originate in a repeater to protect the internal circuits from external misconfiguration or signal shorting 2 Position of Connectors and Functions 2 1 LEDs Name Color Description POWER Yellow Power is on UMTS LTE Green GSM card is operating LAN1 LAN2 Yellow Ethernet connection established blinks with traffic Green On if 1000 Mbps link TxD1 TxD2 Green Transmit traffic RxD1 RxD2 Yellow Receive traffic 2 2 Reset Button With Reset button you can restart the OnRISC Alekto2 without removing the power The Reset button should be used only in situations where reboot command is not available to avoid file system integrity errors Table 3 LED Indicators September 2013 Alekto 2 User Manual 3 Appearance 3 Appearance 2 USB OnRISC a Jl E w 2 CFast a Front View b Top View Figure 1 Appearance Alekto 2 September 2013 Alekto 2 User Manual 4 Connectors 4 Connectors 4 12. provides two USB 2 0 Host interfaces They can be used for Mass Storage Devices like Flash or Hard Drive Bluetooth and WLAN adapters etc September 2013 Alekto 2 User Manual 11 4 Connectors 4 10 USB OTG A connector of micro AB type provides one extra USB channel This port can operate in Host or Device Mode the hardware detects if the connected device is a Host PC or some device printer external HDD etc Hence the designation as USB OTG This port shares the USB lines with the SATA function For certain applications a fixed assignment of USB lines is configured inside the Alekto 2 Check section 5 7 on page 16 for details 4 11 PC The PC interface operates with a maximum frequency of 400kHz Fast Mode The connector for IPC is located on the terminal digital I O block and has three contacts SCL SDA and GND When required the I C device can be powered with the VCC auxiliary output of the digital I O terminal block 4 12 Digital 1 0 The OnRISC Alekto2 provides eight digital input output channels The data direction for each channel can be set to input or output The direction is configured in three groups of two and four signals An interrupt for an input channel can also be independently enabled to detect signal level changes 1 2 3 4 5 6 7 8 9 10 VCC DION DIO1 DIO2 DIO3 GND DIO4 DIO5 DIO6 DIO7 a DIO connects 11 12 13 GND SDA SCL b PC c
3. variety of interfaces like LAN CFast USB PC serial interface and digital I O makes it easy to connect various industrial devices to the Alekto 2 ARM Cortex A8 processor Compact dimensions and DIN Rail mounting capability make the Alekto2 to a space saving and flexible mounting industrial computer It is feasible to be installed even in space limited environ ments Direct Wall mounting is an option as well Due to RISC based architecture the Alekto2 has low power consumption 18 Watt so fanless heat dissipation is possible Working in the temperature range from 10 C up to 50 C the Alekto 2 can be used under harsh industrial conditions Therefore the Alekto2 is downright designed for industrial automation 1 1 Product Features Ti Sitara AM3354 ARM Cortex A8 32 bit RISC CPU 720MHz 256 MB DDR2 RAM on board 1 x microSD Slot SDHC up to 32GB internal as boot device HDMI connector for Display and Audio 2 x RS232 RS422 RS485 serial ports 8 Digital I O channels 1 x CFast Slot operates on SATA 2 x USB 2 0 as Host 1 x USB OTG 1 x Add on slot for WLAN card 1 x MiniPCle slot for expansion with UMTS LTE WLAN GPS etc 2 x Fast Ethernet interfaces for redundant networking or routing functions TPC bus with max 400 kHz clock RTC Ready to Run Debian Linux for ARM operating system DIN Rail and wall mount installation Robust fanless design Industrial temperature range 10 to 45 C Watch Dog Timer September 2013
4. Alekto 2 User Manual 1 Overview 1 2 Hardware Specifications 1 2 1 System OnRISC Alekto 2 CPU TiSitara AM3354 ARM Cortex A8 RISC CPU 720MHz RAM 256 MB DDR2 RAM CFast Slot SATA microSD Slot 1 x internal USB 2 x 2 0 as Host 1 x USB OTG LAN 2 x 10 100 Fast Ethernet WLAN optional in Expansion Slot Serial Ports 2 x RS232 RS422 RS485 up to 3Mbps Digital I O 8 x input output signals 32 mA max Console Port RS 232 up to 115200bps PC max 400 kHz RTC yes Watch Dog Timer yes MiniPCle Slot yes with SIM Card Slot Reset Button HW Reset Power Input 9 32V DC Power Consumption 1 5A 12V Dimensions W x L x H 161 x 112 x 53 mm 171 x 118 x 53 mm with DSub 9 connector Table 1 Product Hardware Specifications 1 2 2 Serial Ports Up to two serial ports are provided in RS232 422 485 modes that can be switched by software or by DIP switch For the detailed information about the supported modes refer to the Table 2 RS 232 RS 422 RS485 Modes full duplex full duplex 2 wire half duplex without echo 4 wire full duplex Signals TxD RxD RTS CTS Tx Rx 2 wire Data GND DTR DSR DCD RI GND 4 wire Tx Rx GND GND Data by ART Automatic Receive Direction Transmit control Control Speed up to 500 kbps up to 3 Mbps up to 3 Mbps Table 2 Serial Interface Specifications September
5. Power The OnRISC Alekto 2 device is powered by a single power supply in a wide range from 9V DC to 32V DC A suitable power supply adapter is available as add on component and part of the starter kit package Connect the cable to the power jack at the top side of Alekto 2 and plug the adapter into the socket The Power LED yellow on Alekto2 will light You can connect a power supply of your choice providing the technical requirements are met Warning disconnect the Alekto2 from power supply before performing installation or wiring The wire size must follow the maximum current specifications The maximum possible current in the power wires as well as in the common wires must be taken under consideration If the current rises above the maximum ratings the wiring can overheat causing serious damage to your equipment When powered the Alekto 2 s internal components generate heat and consequently the outer case may feel warm to the touch 4 1 1 Connection and Polarity Power is connected via three clamps on a terminal block located on the top side of Alekto 2 V and V are clamps for DC volt age supply FG is the clamp to con nect the case and shields of con nection cables to protective ground FG is internally connected to logic ground which is on the level of V supply line Clamp 3 2 1 rO Ve Nt Function FG V V Table 4 Power Connector Figure 2 Power Connector The power connect
6. aces support Auto MDI X feature You may notice the system software can configure the LAN ports up to a Gigabit 1000 Mbit connection The hardware is capable of operating at this transmission rate But due to excessive heat produced in Gigabit mode this is only possible up to about 40 C environment temperature Therefore this operation mode is not covered by the specifications of the system A 1000 Mbit net causes the Speed LED on RJ45 green to light otherwise it will remain dark 4 5 Console Port The console port RS232 has an RJ45 connector An adapter cable to DSub 9 male is available as part of the Starter Kit 6 1 Pin Signal Pin Signal 3 GND 2 RxD 4 TxD 3 TxD 5 RxD 5 GND a Console RJ45 b Console DSub 9 Table 5 Serial Console Port 4 6 CFast Slot The CFast slot runs storage expansion cards on SATA transmission protocol SATA is much faster than IDE and CFast is the modern standard intended for replacement of the common CF Cards The capacity of the CFast Card is only limited by SATA specifications so in real world applications all cards fit This slot is intended for data storage the operating system does not boot from that card The SATA port is connected via internal USB and shares the USB lines with the USB OTG port Using certain models of CFast cards USB lines can change assignment automatically For other models or special applications a fixed assig
7. d into new editions of the publication September 2013 Alekto 2 User Manual 2 Contents Contents 1 Overview 5 Li Product FESTES o cor ai AA A a A e a 5 12 Hardware Specifiewtions e 2 4 34 cds a A RR ee bee 6 LDL RPS a eee Ae Rha Ro eee he ee RE be 6 LAS Benal Parte sea cos ee bw bee Se kw ee ER eh ee PERE Oe 6 bee DEA DO ss owe tone Oe ee wee a Kee ee Be wes 7 e Es ce werk Soe Ee Hey ee RN 7 2 Position of Connectors and Functions 7 a MED eS ks eae ce chee epee amp bee ois O 7 Do Reset BUON ic Bd ara OR a ee A Eee E he a A ee ee OR 7 3 Appearance 8 4 Connectors 9 dil POMBO a ci ee e eae e ee a ks et Dg ek Bee Bk ee 9 Add Connection and Polarity ou ke s se Gun ee re ek eR Re 2 9 MOS ATA fon eek ak oe Ge ee be Oe le ee ewe leo ae eb ee eS 9 dae Mero lO sane SAK ee ee SA eee Se ee He eS Be a SR aA eS 10 Sa O i eo ee te aie ee Ge koa a 10 Bey Coole ete 2 aie te A ee a a Ges ae eae ee a Gul oe ee ak Gee 10 A E E oR AE eee ee Sete 4 10 lt A PN oe isc cp Seth mete Seg eB E Behe Geek ot keghtrarde et oh Gee Be aks deck wid oe ok 11 de Sanal oo a a ee ce a ke Sa ek ee ee ee ee Ee ee ke SS 11 E eee 2 wie IA 11 LIO USE Ol eras bee dw ADAH Ew A BS ee ee Be a 12 MITE ERNETEN Re Be a o ee 12 ONS We canciones rre 12 5 Internal Components 13 51 DIP Switches 64 4 che ee ada a ioe neka hi eR we a ek 13 29 UMUESILTR O cera Oe o eA EER Oe a He Bed 14 Tal SIM Card ove a bw oe wee hee ee wee Be ERR AE eR Ew eS 14 Es WLAN Socket c
8. hat slot is never accessible September 2013 Alekto 2 User Manual 16 7 History By using CFast cards following latest specifications the hardware of the slot can automatically detect if this card is placed in the slot Then the USB port is directed to the SATA controller to operate the CFast slot Certain software operations may override the selection by jumper caps or the automatic detection 5 8 JTAG Only for low level developers there is a connector for JTAG function How to use that is not the purpose of this manual so the connector is only mentioned for documentation 6 Product Support Information The following services are provided on www vscom de and www visionsystems de for the customers to support our products e driver updates e product information e user s manual updates For special technical support issues please use our FAQ system faq visionsystems de 6 1 Ready to Run Kit For easy start of developing software applications Vision Systems provides a Ready to Run or Starter kit This consists of e OnRISC Alekto2 system e 4GB microSD card for Linux operating system inserted in the slot e Power adapter 12V 2A e Adapter cable for serial console port e Development software on DVD e Documentation on DVD 7 History September 2013 Official release of Hardware Manual September 2013 Alekto 2 User Manual 17
9. icroSD CR2032 ed g Socket Q UMTS LTE mPCle DIP SW DIP SW o QA SIM Card Figure 3 Boards Figure 3 shows schematically how the interior of Alekto2 looks like when front and left cover is removed 5 1 DIP Switches There are two blocks of DIP switches marked as DIP SW These are used to configure the oper ation mode of the serial ports SW1 is for the serial port labeled as Com1 and SW2 is for Com2 The switches define the default configuration software may check and override this The switch labeled 4 on each block controls the termination by 120 Q in RS422 and RS485 modes attached to the receiving lines that switch has no effect in RS232 mode orientation when mounted on DIN Rail September 2013 Alekto 2 User Manual 13 5 Internal Components S1 S2 S3 Mode Off Off Off Port disabled Sa On Off Off RS232 On On On RS422 On On Off RS485 Full Duplex Off On Off RS485 Standard b Termination a Operation Mode Termination On Active 1200 Off Inactive Table 10 Configuration Serial Port In RS422 Mode data may be received while transmitting This also applies to RS485 Full Duplex Mode which is referred to as 4 wire Mode also The RS485 Standard Mode is alternatively referred to as Half Duplex Mode 2 wire connection or Bus Mode It uses the same two wires for transmit and receive So it w
10. in the free space of the EEPROM Closing J1 by a jumper cap enables to modify the content Details on how to access and change the content are given in the software manual September 2013 Alekto 2 User Manual 15 5 Internal Components 5 7 CFast OTG J3 Figure 4 shows how OnRISC Alekto2 will look if you would remove the upper PCB This removal is not necessary the picture is just here to point to certain locations The microSD slot and the WLAN Socket are already described E microSD Boot WLAN g Socket T gt Q L v 2 a a 3 PY Ld x m g A USB LAN 1 LAN 2 Console Display 182 OTG lt a Figure 4 Lower Boards In the lower left corner there is a small jumper block labeled J3 It has four pins and pin one is marked with a square This block is used to assign the internal USB function port 0 to the SATA controller for CFast slot or to the USB OTG slot 1 2 3 4 Assigned to Open Open CFast Close Open OTG Close Close Automatic Table 12 CFAST OTG selection There are two locations for jumper caps One cap can connect pin 1 and pin 2 the other cap connects pins 3 and 4 Assigned to CFast results in the OTG port switched inactive and the CFast slot is in permanent function On the other hand the OTG configuration disables the CFast slot a card in t
11. nment is configured inside the Alekto 2 Check section 5 7 on page 16 for details September 2013 Alekto 2 User Manual 10 4 Connectors 4 7 CAN The DSub 9 connector for CAN bus follows the standard Available are CAN High CAN Low and GND signals Pin Signal 2 CAN_L 3 GND 6 GND 7 CAN_H Table 6 CAN DSub 9 Pinout 4 8 Serial The OnRISC Alekto 2 provides two DSub 9 male connectors All three modes of operating RS232 RS 422 or RS485 are entirely configurable by software For the pinout refer to the Table 7 If the configuration by software is not used the default operation mode of each port is configured by a DIP switch The DIP switch may be overridden by software if the user chooses to do so Check section 5 1 on page 13 for details Pin RS232 RS422 RS485 2wire 1 DCD Tx A Data A 2 RxD Txt B Data B 3 DD Rxt B 4 DTR Rx A 5 GND GND GND 6 DSR 7 RTS 8 CTS 9 RI Table 7 Serial DSub 9 Pinout Please note the function of the GND signal in RS422 and RS485 modes this signal must also be connected between the serial devices So in reality a 2 wire and a 4 wire connection need 3 wire and 5 wire respectively With the exception of very special configurations a serial connection in RS422 RS485 mode without GND connection violates the specifications for RS422 and RS485 standards 4 9 USB The OnRISC Alekto2
12. onnects Table 8 Digital I O Connector DIO 0 to DIO 3 are one group of signals while DIO 4 DIO 5 are the second group and DIO 6 plus DIO 7 build the third group The direction of each group is input or output for all of the signals in that group So the Alekto2 offers eight six four two or no input signals depending on the configuration That results in zero two four six and eight signals used as outputs Input TTL level 0 0 to 0 8V 2 0 to 5 0V Output Source 32mA TTL High 2 0 to 5 0V Output Sink 64mA TTL Low 0 0 to 0 6V Table 9 Digital I O Electrical Characteristics VCC is an auxiliary power output of 5V DC for max 500 milliAmpere This may be used to drive special driver circuits connected at Digital I O As an example VCC may drive a relay controlled by the output signals September 2013 Alekto 2 User Manual 12 5 Internal Components 5 Internal Components Most components inside the case of OnRISC Alekto 2 are not for service by the user But there is the exception of a few functions these are described below for access location and configuration options To access the components the case of Alekto 2 must be opened It is either the back side of the case where the DIN Rail clamp is mounted fixed by four screws Or the front and left cover fixed by six screws Hed E Battery m
13. or is polarity neutral So it does not matter if Plus line of the supply is connected to clamp 1 or clamp 2 It is required to have the Minus line of the supply identical to protective and chassis ground It is not allowed to connect the Plus line to chassis ground Attention Never connect the Terminal block for power supply in reversed direction This would connect the power between V logic ground and case protective ground High current is the result causing damage inside the system 4 2 Grounding Grounding and wire routing help limit the effects of noise due to electromagnetic interference EMI Run the ground connection from the ground screw to the grounding surface prior to connecting devices September 2013 Alekto 2 User Manual 9 4 Connectors 4 3 microSD Slot The OnRISC Alekto 2 provides one microSD Slot inside the case so it is not accessible from outside remove the back cover of the case to get access This slot is used to store the operating system files The slot supports cards as SD 2 0 or SDHC type to allow up to 32GB of capacity Class 10 cards are supported as well 4 4 LAN The connectors for Ethernet are the usual RJ45 Simply connect them to your switch or hub When the connect is done the Link LED on RJ45 yellow will light When data traffic occurs on the network this LED will blink It depends on your network whether a 100 Mbit or a 10 Mbit connect will be established Both Ethernet interf
14. ould be possible to simultaneously receive the same data the port just transmitted this is often named an Echo The serial port in Alekto 2 intentionally suppresses this Echo In the rare situations where this Echo is required the port should be set as this e Configure the port for RS485 Full Duplex Mode e Connect Tx with Rx in the cable e Connect Tx with Rx in the cable 5 2 UMTS LTE 3G 4G There is one expansion slot to hold a Mini PCI Express Card in long size format This slot supports the data signals for USB 2 0 so the selected card must operate on USB PCI Express is not available Typical cards placed into this expansion slot are Wireless communication cards 5 2 1 SIM Card If the miniPCIe card is for mobile communication by GSM GPRS EDGE UMTS LTE it will use a SIM card for the account data to access the providers network This SIM card shall be inserted into the special slot which is connected to the miniPCle slot The slot for SIM cards is accessible on the front side i e when the case is closed Note There are add on cards with an integrated SIM slot Depending on the particular model both slots are functional i e a SIM card may be placed either in the external or the integrated slot 5 3 WLAN Socket At first view the WLAN socket looks like a miniPCle expansion slot in short size format But it is no such slot special cards connected via SDIO function are placed here This slot is intended for Wireless LAN func
15. risis arrasar dida aa 14 DA Battery E 15 TO Merosi eard o ae a e a Aue dd a e E 4 Soh ee a eR SO a ae Bae ee Se i aaa 15 DO EEPROM rereset iaeaea A a a la a e Se 15 5T CESE PACA le a eee AA A A e eee a aS 16 A O O 17 6 Product Support Information 17 6 1 Ready to Rum Kib 2 bk bed PRR A e a A ee et 17 7 History 17 September 2013 Alekto 2 User Manual 3 List of Tables List of Figures 1 Appearance Alekto 2 cierra rr A RA OES 8 2 Power Connector 2 5240 tiara di a a A 9 3 a A EN 13 4 Lover Boards ios iii woh tha a ee a nd a da he ed 16 List of Tables 1 Product Hardware Specifications e ee 6 2 Serial Interface Specifications ooo a 6 3 LED Iba se aop emia e eca a a a e a oi a da ee 7 4 Power onmeeer 6 eg eee es RO A te Ge Be ee a ee ei ee 9 5 menial Console Porp o o e iie ee pik EA te oe he ee a ee ae ee 10 6 CAN Dot Finit ccoo Ye ee a A BN ed ae Ee a ae ee ae 11 7 serial DSub 9 Pitout lt Se aie eee ea ee ae eae et 11 8 Digital l O Comedor c ecas ricardo dn ete Ge ed awd ee aad ee os 12 9 Digital I O Electrical Characteristics 2 2 4 204 be ee dS awe e 12 10 Configuration Serial Port e segia dep modam aia a a eR De wee A 14 i EEPROM Write Protect I e e sg da cs i arap be eRe a Se ae A ed a aa 15 IZ CAST O GDA cerrar RR AR a 16 September 2013 Alekto 2 User Manual 4 1 Overview 1 Overview The OnRISC Alekto 2 is a RISC industrial embedded computer based on the Ti Sitara AM3354 The great
16. tion September 2013 Alekto 2 User Manual 14 5 Internal Components 5 4 Battery There is a clip to hold a CR2032 type Lithium battery This battery provides the backup power for the Real Time Clock When a replacement of the battery is required convenient access is by removing the front left cover But the location at the rear side also allows access by removing the back side of the case 5 5 MicroSD card The microSD card is placed in the slot visible in figure 3 on page 13 and figure 4 on the following page This card is the boot device of the system with files to start Linux Windows EC 7 or other systems like Android The card must be inserted from the back side so it is necessary to remove the back cover 5 6 EEPROM Crucial configuration data of the system is stored in an EEPROM Among other items this infor mation includes the MAC addresses of the system and the serial number These are programmed into an EEPROM at production time The EEPROM is protected from alteration by the jumper cap labeled as J1 It is located near the slot for the MicroSD card see figures 3 on page 13 and 4 on the following page J1 Function Open Write protected Closed Modification allowed Table 11 EEPROM Write Protect System Integrators may read the information from the EEPROM for purposes of system identifica tion fingerprinting or software protection They also may decide to add their own information
17. www vscom de OnRISC Alekto 2 Hardware Manual Tel 49 40 528 401 0 Fax 49 40 528 401 99 Web www visionsystems de Support serviceOvisionsystems de 1S m O O The software described in this manual is furnished under a license agreement and may be used only in accordance with the terms of that agreement Copyright Notice Copyright O 2009 2013 Vision Systems All rights reserved Reproduction without permission is prohibited Trademarks VScom is a registered trademark of Vision Systems GmbH All other trademarks and brands are property of their rightful owners Disclaimer Vision Systems reserves the right to make changes and improvements to its product without pro viding notice Vision Systems provides this document as is without warranty of any kind either expressed or implied including but not limited to its particular purpose Vision Systems reserves the right to make improvements and or changes to this manual or to the products and or the programs described in this manual at any time Information provided in this manual is intended to be accurate and reliable However Vision Systems assumes no responsibility for its use or for any infringements on the rights of third parties that may result from its use This product might include unintentional technical or typographical errors Changes are period ically made to the information herein to correct such errors and these changes are incorporate
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