XR5i v2 user`s guide
Contents
1. oso a 4 Front panel XRS5iv2F 2 ess osos soseo 5 Front panel XRbIV2ZFSL sss 5 Label XR5IV2F se ss ee bee bee ee kee ee SEA ee GN nea pdn 5 Label XR5iv2F SL ee 5 Basic dimensions of plasticbox 7 Basic dimensions of metal box 7 Cable routing oso oso oso 8 Cable routing for SLversion 8 Space infrontofconnectors a a a a so 9 Space infrontofconnectiors SL 9 Default position of DIN holder aoao a 10 Removing from the DIN rail oaa aa ee 10 Front panel XR5i v2F aaa oo oososososososososso 11 Front panel XR5iv2ESL eo 11 Power connector sue cee dee crasas 13 Connection of power supply connector 13 Connection of power SUDDIY 13 Ethernet connector oso os oeos soso 14 Connection of ethernet Cable 14 Example of router connection 2 a a o 15 PORTI cable connection e 16 PORT2 cable connection a 17 USB COMNMECI 22 ce eG eenGeneaebebene de eeeeeeeteauee 17 Connection PLC tothe router 18 Connection flash memory totherouter 18 VOCOMMCCION sa cop meses seas SD ss 18 Connection of I O cable 19 Connection of input and outp2. 8 5 7 Removing from the DIN rail 10 5 8 Description of the front panel a 11 5 8 1 Status indication ee 12 5 8 2 PowerconneciorPWR 13 5 6 3 EM MeClPOM gt sasa ks uda suuo uzu a ENA ER 14 noc PORTI serra kas ye ea kun kusxu un kdo eo go ku 16 dO PORTE 244264828448 aa nen EGE su E 16 5 8 6 USB Port oo oso 17 do VOPO os qero ordre Se Gs 18 Ow ROSE mami cuia ds eee a Sua a pa Sa uu e A wo 20 6 First use 21 6 1 Connecting the router before first use o 02 0008 21 SES cssprr din PAS e kesspukesus kas ea guos 2 ea aa 22 6 30 VONI QUIA ON osx ercer e kGEESS KUNI SE EG EY 22 6 3 1 Configuration Overwebbrowser 22 6 3 2 Configuration over Telnet 22 7 Technical parameters 23 7 1 Technical parameters of router sss 23 7 2 Technical parameters of processor soseo 23 7 3 Technical parameters llOport o 24 7 4 Technical parameters of expansion port 24 CONTENTS 8 Recommended literature 25 9 Possible problems 26 10 FAQ 27 11 Customers support 29 Cone um A BSB ELECTRONICS Company L ST 0 F U R ES List of Figures ONO OI BON QO NN DNNNNNNDNDNN gt gt mi aH CO 000 NODO FOV a ODO NPD KA VIV LO Contents of package
3. Cornell um A BSB ELECTRONICS Company Industrial router XRDI v2 USER S MANUAL 1 sos A A A o AA A A 4 eme XRO V 9 OUT IN USR PWR gt gt TE JLX oo USB PORT2 PORT1 ETH AS V OUT IN USR Wu Cone mm A B amp B ELECTRONICS Company i USED SYMBOLS se gt Used symbols Danger important notice which may have an influence on the user s safety or the function of the device Attention notice on possible problems which can arise in specific cases Information notice information which contains useful advice or special interest GPL license Source codes under GPL license are available free of charge by sending an email to info conel cz Conel s r o Sokolska 71 562 04 Usti nad Orlici Czech Republic Manual issued in CZ August 18 2014 Cone um A B amp B ELECTRONICS Company O N T N T S Contents 1 Safety instruction 1 2 Product disposal instructions 2 3 Router description 3 4 Contents of package 4 5 Router design 5 5 1 Router versions wie xx au 4 Ka rs DE RES komia E ao i di eu l dla 5 5 2 Delivery identification sos oseo oseo 5 5 3 Orderingcodes aoaaa oso osososoos soseo 6 5 4 Basic dimensions of plastic box a 7 5 5 Basic dimensions of Metal box 7 5 6 Mechanical dimensions and mounting recommendations
4. clip for the DIN rail installation CD containing instructions paper start guide Hu XRO v2 Figure 1 Contents of package Note The router box and DIN mount are supplied in a metal case in the SL version a The router can also be supplied as expansion accessories e Two expansion ports RS232 RS485 422 MBUS ETHERNET CNT WIFI WMBUS or SDH Separation columns for mounting expansion boards are included Cone um A BSB ELECTRONICS Company 5 ROUTER DESIGN 5 Router design 5 1 Router versions XR5i v2 router is supplied in the following versions CO O E PORTE A XR5I v2F Plastic XR5i v2F SL Metal A VA A VA A Table 1 Router versions ARS v2 XRO v2 OUT IN USR OUT IN USR O O O O O O Sel Se 1 0 1 0 PORTE PORTI USB PORT PORTI Figure 2 Front panel XR5i v2F Figure 3 Front panel XR5i v2F SL 5 2 Delivery identification Trade name Type name Other OOOO XR5I v2F XR 5i v2 Full version XR5i v2F SL XR 5i v2 Full version in the metal box Table 2 Delivery identification XR5i v2F XR5i v zzz UDS r A TAMU NN no pas piki mam ce Sce Figure 4 Label XR5i v2F Figure 5 Label XR5i v2F SL Cone um A BSB ELECTRONICS Company m a D ROUTER Daren 5 3 Ordering codes Version without expansion port XR5I v2F set Version with Ethernet expansion port PORT1 XR5bi v2F ETH set Version with RS232 expansion port PORT1 a PORT2 XR5i v2F RS
5. corresponding expansion port PORT1 cable plug into the RJ45 connector labeled as PORTI see figure below Figure 22 PORT1 cable connection 5 8 5 PORT2 The PORT2 is equipped on customer s request with one of the offered expansion ports e RS232 e SDH e RS485 e WIFI e RS422 e WMBUS e MBUS a Description and examples of expansion ports connection can be found in user s guide for corresponding expansion port 16 Cone um A B amp B ELECTRONICS Company 5 ROUTER DESIGN PORT2 cable plug into the RJ45 connector labeled as PORT1 see figure below Figure 23 PORT2 cable connection 5 8 6 USB Port Panel socket USB A Pin Signal mark Description Data flow direction 1 5 V Positive pole of 5 V DC supply voltage 2 USB data USB data signal negative pole Input Output 3 USB data USB data signal positive pole Input Output 4 GND Negative pole of DC supply voltage Table 8 Connection of USB connector Figure 24 USB connector 17 Wu Cone um A B amp B ELECTRONICS Company a E 5 P 9 UT E R D ES G N Example of connecting devices with serial interface to the USB Transmitter USB RS232 nS Figure 25 Connection PLC to the router Example of connecting of USB flash disk to the USB Flash disc Figure 26 Connection flash memory to the router 5 8 7 IO Port Panel socket 3pin Pin Signal mark Description Datta flowdirection 1 BINO Binary i
6. interface and protected by password The router sup ports creation of VPN tunnels using technologies IPsec OpenVPN and L2TP to ensure safe communication Web interface provides detail statistics about the router activities Other diagnostic functions ensuring continuous communication include automatic function ality inspection or hardware Watchdog which monitors the status of the router With the help of a special window start up script window you may insert Linux scripts for various actions For some applications the key option to create several different configurations for one wire less router the so called profiles maximum of 4 and the option to switch between them for example via binary input status web interface etc is essential The industrial router XR5i v2 has implemented SNMP protocol for remote management It is also possible to configure the network in bulk and use any additional software VPN SmartCluster configurator to easily configure a VPN or a program for monitoring routers in the network R SeeNet Industrial XR5i v2 router is enhanced by the ability to create custom functions easy integration of custom software modules Examples of possible applications e security system e monitoring e vending and dispatcher machines Wu Cone um A BSB ELECTRONICS Company 4 CONTENTS OF PAC KAG E 4 Contents of package 40 Basic delivered set of router includes router power supply crossover UTP cable
7. 232 set Version with RS485 expansion port PORT1 a PORT2 XR5i v2F RS458 set Version with MBUS expansion port PORT1 a PORT2 XR5i v2F MBUS set Version with CNT expansion port PORTI XR5i v2F CNT set Version with WIFI expansion port PORT2 XR5i v2F WIFI set Version with WMBUS expansion port PORT2 XR5i v2F WMBUS set Version with SDH expansion port PORT2 XR5i v2F SDH set Table 3 Ordering codes Second expansion port is written after first expansion port in the ordering code Example e Full version with Ethernet and RS232 port XR5i v2F ETH RS232 set e Full version with Ethernet and RS232 port in metal cover XR5i v2F ETH RS232 SL set 5 ROUTER DESIGN E Space for dota 1 connectors and dota cobles DIN roi 35mm Position A DIN rai 35mm Position B Figure 6 Basic dimensions of plastic box 5 5 Basic dimensions of metal box aee 3 connectors ond dota cables DIN roi 35 mm Figure 7 Basic dimensions of metal box Cone um A B amp B ELECTRONICS Company a E 5 P 9 UT E R D ES G N 5 6 Mechanical dimensions and mounting recommendations Mounting recommendations e possibility to be put on a work surface e DIN rail with clips CKD2 ELPAC clip SL for metal version are included For the most of applications with a built in router in a switch board itis possible to recognize two kinds of environments e no public and industry environment of low voltage with high interference e public environment o
8. Electronic Equipment 2002 96 EC directive has been introduced to ensure that electrical electronic products are recycled using the best available recovery techniques to minimize the impact on the environment This product contains high quality materials and components which can be recycled At the end of it s life this product MUST NOT be mixed with other commercial waste for disposal Check the terms and condi tions of your supplier for disposal information Cone um A BSB ELECTRONICS Company 3 ROUTER DESCRIPTION 3 Router description Industrial router XR5i v2 is used to a secure connection between two local area networks LANs via two ETHERNET interfaces 10 100 and secured tunnel IPSec OpenVPN or L2TP The second option is to use this router for connecting two devices with different serial interface RS232 RS485 MBUS alternatively I O to the local network LAN In this configuration the communication device has an EHTERNET 10 100 and two interfaces that are equipped on the user s request XR5i v2 router is standardly equipped with one ETHERNET 10 100 port one USB A host port one I O port and two expansion ports Users can select a second ETHERNET 10 100 port serial interface RS232 RS485 RS422 MBUS expansion port with SD card SDH or other inputs outputs I O Industrial XR5i v2 router is supplied either in a plastic or metal casing based on the requirements of the customer Configuration is performed via web
9. anual Expansion port ETH User s manual Expansion port WIFI User s manual Expansion port WMBUS User s manual Expansion port SD Application guide Expansion port mounting Application guide Programmer guide 25 Wu Cone mm 9 Possible problems Some network cards are able to be set in situation when it is not possible to connect the router It is possible to solve this problem in the following steps e hand by selection communication rates 10 MB s in property network cards e connect router over switch e start computer only after finalizing the start of the router 26 Cone um A B amp B ELECTRONICS Company 10 FAQ o cant get from internet on equipment which is connected to router and have NAT en abled e The device s gateway has to be configured as the router 2 Router resets itself connection on Ethernet fails e Itis necessary to use an antenna which will be situated far from power supply a dont get on web server at NAT e The remote http access of the router has to be disabled default server address has to be your web server and the gateway of the web server has to be the IP of router 0 Connection fails on Ethernet or connection isn t establishing e On ethernet interface of the router it is possible to switch auto negotiation off and set a rate and duplex by hand 0 DynDNS not function e In private APN not functional e f the same IP addre
10. ed for mount ing the router on a DIN rail is shown in the following figure Figure 12 Default position of DIN holder For removing from the DIN rail it is necessary to lightly push upward the router so that the top part of the CPD2 holder or CKD2 for SL version hitched to the DIN rail get out of this rail and then fold out the top part of the router away from the DIN rail Figure 13 Removing from the DIN rail 10 Cone um A B amp B ELECTRONICS Company 5 ROUTER DESIGN 5 8 Description of the front panel On the front panel is located PWR 2 pin Connector for the power supply adapter ETH RJ45 Connector for connection into the local computer network PORT1 RJ45 Connector for expansion port R8232 RS458 422 MBUS ETHERNET or CNT PORT2 RJ45 Connector for expansion port RS232 RS485 422 MBUS WIFI WMBUS or SDH USB USB A Host Connector for connection of USB devices to the router Sup ports devices with PL 2303 and FTDI USB RS232 converters I O 3 pin Connector for connection of the binary input and output Table 4 Front panel description ARII v2 OUT IN USR O O O RST O o afe 2 Lo ee BERA Dutl In 1 0 PWR PORTO PORTA Figure 14 Front panel XR5i v2F XRO v2 OUT IN USR O O Q CERAN p 1 0 UR USB PORTO PORT1 Figure 15 Front panel XR5i v2F SL 11 Cone um A BSB ELECTRONICS Company m D ROUTER Darien 5 8 1 Status indication About router status in
11. f low voltage without high interference For both of these environments it is possible to mount router to a switch board the following there is no need to have examination immunity or issues in connection with EMC according to EN 60439 1 ed 2 00 A1 04 For compliance of EN 60439 1 ed 2 00 A1 04 specification it is necessary to observe next assembly of the router to the switch board O e For every cables we recommend to bind the bunch according to the following picture we recommend for this use Length of the bunch combination of power supply and data cables can be max imum 1 5 m If the length of data cables exceeds 1 5 m or in the event of the cable leads towards the switch board We recommend installing over voltage protectors surge suppressors With data cables they mustn t carry cables with reticular tension 230 V 50 Hz All signals to sensors must be twisted pairs Figure 8 Cable routing Figure 9 Cable routing for SL version 5 ROUTER DESIGN Figure 10 Space in front of connectors Figure 11 Space in front of connectors SL e For correct function of the router we recommend to use in the switch board earth bonding distribution frame for grounding of power supply of router data cables and antenna Wu Cone mm A B amp B ELECTRONICS Company p le ROUTER DIS ICIN 5 7 Removing from the DIN rail Default position of CPD2 holder or CKD2 holder for SL version which is us
12. form four LED indicators on the front panel and on every port are two LED indicators which inform about port status Caption Color State Description OO PWR Green Blinking Router is ready On Starting of the router Fast blinking Updating firmware USR Yellow Function selected by user OUT Green On Binary output active IN Green On Binary input active ETH Green On Selected 100 Mbit s Off Selected 10 Mbit s ETH Yellow On The network cable is connected Blinking Data transmission Off The network cable is not connected PORT Green Depends on the expansion port See user s guide of used port PORT Yellow Depends on the expansion port See user s guide of used port Table 5 Router status indication 12 Cone um A BSB ELECTRONICS Company E m D ROUTER Darien 5 8 2 Power connector PWR Panel socket 2 pin OZA KEON Description VCC Positive pole of DC supply voltage 10 to 30 V DC 2 GND Negative pole of DC supply voltage Table 6 Connection of power connector O feji 0 Figure 16 Power connector Power supply for router is required between 10 V to 30 V DC supply Protection against reversed polarity without signaling is built into the router The power consumption during receiving is 1 6 W The peak power consumption during data sending is 5 5 W However values of consumption can be increased if some expansion port is eqquipped For correct operation it is necessary that the power source is able to supp
13. handled carefully as with a credit card Don t bend dont scratch on this and do not expose to static electricity e During cleaning of the router do not use aggressive chemicals solvents and abrasive cleaners Conel Company hereby declares that the router narrated in this user s guide fits all basic de mands of directive 1999 5 EC R amp TTE Router fits values of coefficient SAR defined by association ICNIRP and values of About pro tection of health before non ionized radiation C Declaration of conformity was issued and it is possible to find it on the Conel web site http www conel com download or at producer Please use the following login information Username ConelFreeDownload Password coneldownload 29
14. he power source is able to supply a peak current of 1 A 6 3 Configuration 6 3 1 Configuration over web browser Monitoring of the status configuration and administration of the router can be performed by means of the web interface which is available after insertion of IP address of the router into the web browser The default IP address of the router is 192 168 1 1 Configuration may be performed only by the user root with initial password root A detailed description of the router settings via the Web interface can be found in the con figuration manual 6 3 2 Configuration over Telnet Monitoring of status configuration and administration of the router can be performed by means of the Telnet interface After IP address entry to the Telnet interface it is possi ble to configure the router by the help of commands The default IP address of the router is 192 168 1 1 Configuration may be performed only by the user root with initial password root A detailed description of the router settings via the Telnet interface can be found in the con figuration manual 22 Cone um Ban A 7 TECHNICAL PARAMETERS 7 Technical parameters 7 1 Technical parameters of router XR5i v2 Complies with standards ETSI EN 301 489 1 V1 8 1 EN 60950 1 06 ed 2 A11 09 A1 10 Temperature range Function 40 C to 75 C Storage 40 C to 85 C Protection Freely IP20 In switch board IP56 Supply voltage 10 to 30 V DC Consumpti
15. ly a peak current of 1 A a Connector on the power cable connects into the power connector on the router head and tightens locking screws see figure below Figure 17 Connection of power supply connector a Circuit example Pin 1 VCC Pin 2 GND Figure 18 Connection of power supply The positive pole VCC is marked by a red socket on the power 13 Cone um A BsB ELECTRONICS Company me D ROUTER Daren 5 8 3 Ethernet port Panel socket RJ45 Pin Signal mark Description AE 1 TXD Transmit Data positive pole Input Output 2 TXD Transmit Data negative pole Input Output 3 RXD Receive Data positive pole Input Output 4 5 6 RXD Receive Data negative pole Input Output 7 a 8 Table 7 Connection of Ethernet connector Figure 19 Ethernet connector O ATTENTION Port ETH is not POE Power Over Ethernet compatible Ethernet cable plug into the RJ45 connector labeled as ETH see figure below Figure 20 Connection of ethernet cable 14 5 ROUTER DESIGN Example of the ETH router connection Figure 21 Example of router connection 15 Wu Cone mm A BSB ELECTRONICS Company D ROUTER DIS ein 5 8 4 PORT1 The PORTA is equipped on customer s request with one of the offered expansion ports e RS232 e ETHERNET e RS485 e MBUS e RS422 e CNT i Description and examples of expansion ports connection can be found in user s guide for
16. nput Input 2 GND Signalova zem 3 OUTO Binary output Output Table 9 Connection of I O port Pll Figure 27 I O connector The user interface I O is for processing of binary input signal and to control settings of binary output signal Binary output is not switched to ground in the default configuration 18 Wu Cone mm mem scorns comem O 5 ROUTER DESIGN Maximum load binary output is 30 V 100 mA The constant current supplied by the binary input is 3 mA Connector I O cable connect into the I O connector on the router head and tighten locking screws see figure below Figure 28 Connection of I O cable Circuit example of a binary input or output equipment with router PIN 1 BIN PIN 3 OUT Pojistka E 3 Figure 29 Connection of input and output to the router 19 Cone um A B amp B ELECTRONICS Company a 5 ROUTER DESIGN 5 8 8 Reset It is important to distinguish between reset and reboot the router Action Router behavior Invoking events Reboot Turn off and then turn on router Disconnect and connect the power Press the Reboot button in the web configuration Reset Restore default configuration and reboot Press RST button the router Table 10 Description of reset and restart router After green LED starts to blink it is possible to restore initial settings of the router by press ing button RST on front panel After press button RST it is resto
17. on Without communication 1 6 W Communication to 5 5 W Dimensions 42x76x113 mm DIN li ta 35 mm Weight XR5i v2 150g XRbi v2 SL 280 g User interface ETH Ethernet 10 100 Mbit s USB USB 2 0 PORT1 Ethernet 10 100 Mbit s PORT2 On customer s request Table 11 Technical parameters of router 7 2 Technical parameters of processor 32b ARM mikroprocesor Memory 512 Mb DDR SDRAM 128 Mb FLASH 1 Mb MRAM Interface Serial interface RS232 Ethernet interface 10 100 Mbit s USB 2 0 interface Table 12 Technical parameters of processor 23 Cone um A ESE ELECTRONICS Company 7 TECHNICAL PARAMETERS 7 3 Technical parameters I O port I O port Input Output Binary input Reed contact with trigger level 1 3 up to 1 4 V Binary output 100 mA max 30 V Table 13 Technical parameters I O port 7 4 Technical parameters of expansion port Technical parameters of the expansion ports are specified in separate manuals for expan sion ports 24 Cone um A B amp B ELECTRONICS Company 8 RECOMMENDED LITERATURE 8 Recommended literature 1 2 S 4 5 6 7 8 9 10 11 12 Conel Conel Conel Conel Conel Conel Conel Conel Conel Conel Conel Conel Start guide Configuration manual User s manual Expansion port RS232 User s manual Expansion port RS485 RS422 User s manual Expansion port MBUS User s manual Expansion port CNT User s m
18. ons have been complied with use only the original accessories Unauthorised modifications or utilization of accessories that have not been approved may result in damage to the router and in a breach of applicable regulations Unautho rized modifications or utilization of accessories that have not been approved may result in the termination of the validity of the guarantee The router can not be opened It must not be exceeded by the maximum voltage 30 V DC power connector on the router Do not expose the router to extreme ambient conditions Protect the router against dust moisture and high temperature The router should not be used at petrol stations of flammable and explosive materials We remind the users of the duty to observe the restrictions concerning the utilization of radio devices at petrol stations in chemical plants or in the course of blasting works in which explosives are used When using the router in the close proximity of personal medical devices such as cardiac pacemakers or hearing aids you must proceed with heightened caution If it is in the proximity of TV sets radio receivers and personal computers the telephone may cause interference It is recommended that you should create an appropriate copy or backup of all the im portant settings that are stored in the memory of the device Wu Cone mm a J 3 2 PRODUCT DISPOSAL INSTRUCTIONS 2 Product disposal instructions The WEEE Waste Electrical and
19. ration of default configuration and reboot green LED will be on For pressing the RST button could be used a narrow screwdriver Figure 30 Router reset We recommend to backup your router configuration see Configuration manual because after reset router set configuration to the initial state 20 Wu Cornel mm A Ecs Secr 6 FIRST USE 6 First use 6 1 Connecting the router before first use Before you give up the router it is necessary to connect all components needed for the operation of your applications and the SIM card must be inserted see figure below aD The router can not operate without connected power supply PWR circuitry see chapter 5 8 2 ETH circuitry see Chapter 5 8 3 PORT1 circuitry see manual of corresp exp port PORT2 circuitry see manual of corresp exp port USB circuitry see chapter 5 8 6 IO circuitry see chapter 5 8 7 Figure 31 Router connection 21 Cone um A BSB ELECTRONICS Company te 6 RST U S 6 2 Start The router is set up connecting the power supply to the router The behavior of the router can be modified by means of the web or Telnet interface which is described in the configura tion manual The power consumption during receiving is 1 6 W The peak power consumption during data sending is 5 5 W However values of consumption can be increased if some expansion port is eqquipped For correct operation it is necessary that t
20. ss is recorded in your canonic name as dynamically assign address it means that the operator is using NAT or firewall e NAT is possible to verify by the help of the ping on address of your server with static IP address and by the help of the router address verify and address in ping e Firewall is possible to verify for example by remote access on web interface e The operator doesn t give out address DNS servers and without DNS server s it is impossible to connect to server dyndns org In log system will be this message DynDNS daemon started Error resolving hostname no such file or directory Connect to DynDNS server failed 0 IPSec tunnel is establishing but communication doesn t function e Probably it is badly set up route conditionals of connected equipment or it is bad set up GW FTP doesn t function e Router doesn t support the active FTP mode supports the passive mode only 2 RS232 doesn t function e t is necessary to verify present the expansion port RS232 e Verify present the expansion port RS232 in router configuration in menu external port or verify connection locally by the help Telnet Hyper terminal 0 L2TP or IPSec isn t establishing e Verify the reason in the log system 28 Wu Cone um mm 11 CUSTOMERS SUPPORT 11 Customers support You can find current information about this product on our website www conel com Upkeep advices e The SIM card must be
21. uttotherouter 19 ROMICLI SO sussa ardida ars Se aw we kuu 20 Router connection 1 o ose oseo oso ose so 21 Wu Cone mm A BSB ELECTRONICS Company LIST Oz TABLES List of Tables ONO 01 BON O O N O ROULET VEISIONS 3 e korneri dees Soe ni dua kul sa eee bees ku 5 Delivery identification soso oseo 5 Ordering COGS a x s ee eee kan Ek ae we NA RNA eww ww A 6 Front panel description a o aoao a a a a o 11 Router status indication 1 a 12 Connection Ofpowerconnector 13 Connection of Ethernetconnector 14 Connection of USBconnector 17 Connection of O port oo 18 Description of reset and restart router 20 Technical parameters of router 23 Technical parameters of processor 23 Technical parameters lOport 24 Cone um mm 1 SAFETY INSTRUCTION 1 Safety instruction Please observe the following instructions The router must be used in compliance with all applicable international and national laws and in compliance with any special restrictions regulating the utilization of the router in prescribed applications and environments To prevent possible injury to health and damage to appliances and to ensure that all the relevant provisi
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