March/April 2012 - Extension of sewages. We received inquiries from the water and waste water industry. Here our line splitters can be used. Regarding the position of the data cables it is necessary to use a combination of a star net and a line network. This connection is possible with our line splitters and you get a transparent network. Owing to the system net work with line splitters the data can flow faster and without any disturbance from each addressed office to the control station. These stations check e.g the height of a liquid level or the capacity of a pump. Applications for line splitters you will find in the line splitter booklet or please phone me. Best regards. Angelika Strixner, General Manager
JANUARY 2012 - V.24/RS232-INTERFACE. Industrial applications often uses V.24/RS232 interface because of durable used system/ auxiliary equipments. But the V.24/RS232 interface is often not available at commercial PC/Laptop and a USB/Serial adapter will be used. RS485/RS422 interfaces can be used with some USB/Serial adapters. In this case please consider that a USB 2.0 connection can supply max. 500mA (High power) or 100mA (Low power) at 5 V for the USB adapter only. A RS485 driver e.g. LTC1481 can supply a maximum driver current of 250mA, in order to reach the maximum RS485-Performance. Due to cost reason many USB/Serial adapters have no galvanic insulation and endanger thereby the expensive PC hardware. A discharge of disturbances by protection diodes is unusual. Hedin Tex interface converters RS232/RS485/20mA with galvanic insulation and protection from lighting and excess voltage in 19? rack, DIN rail and table top version. The asynchronous short haul modems guarantees an error free data transmission up to a distance of 21 kilometres by using the RS232 /V.24 - interface. The interface converter M-4 will be used for a RS484/RS422 to V.24/RS232 transmission. Please do not hesitate to contact us by phone or email if you have some questions - you are welcome. Best regards. Angelika Strixner, General Manager
2012. Thank you sincerely for a year of good cooperation. I will gladly be your dependable partner again in the New Year. I wish you and your family a happy New Year! Best regards. Angelika Strixner, General Manager
Christmas 2011. Once again, an eventful year is coming to a close. I wish you and your family a reflective and restful Christmas season and health, happiness and success in the New Year 2012. Thank you very much for your confidence and the pleasant cooperation. Best regards. Angelika Strixner, General Manager
November/December 2011. Secure C-bus connections. Physically the RS485 interface is well-known as safe transmission interface. Potential differences and interferences are compensated. However a disturbance at a bus participant can affect the whole RS485 bus. Because of a cable interruption it can happen that not only the cut off RS485 bus section will be missed but also the whole RS485 system is disturbed by a wire short-circuit or opened wire ends. A data communication with a LH-4VR is different. The RS485 is converted into the powerful M-1 modem interface without a change of the C-Bus communication parameters. The transmission distance between 2 bus participants is increased, whereby potential differences and interferences are ignored. The redundancy logic of the LH-4VR guarantees that a ring system can be realized, so that in case of a cable interruption the system continues working reliably. The cable interruption is signaled over a contact to the LH-VR concerned. In case of failure of a LH-4VR the equipment is bridged by the bypass function and the redundant communication ring remains closed. You will find an application example in our line splitter booklet on page 32. Do you have any questions, may I help you? Please don't hesitate to contact me. Best regards. Angelika Strixner, General Manager
September/October 2011. RS485 - RS232 - Modem – Interface multiplier - RS232/V24-connection – Interface converter - TTY - RS422 - X.21 – Star Net RS485 – Interface exchanger- Line splitter - M-1 Modem interface - Current Loop - 20mA - Profibus - C-Bus – Bus communication - Master/Slave communication – FOC. Communication without limits! We offer solutions for serial data transmission. Hedin Tex has a long experience and supports questions to interfaces and problems in data communications. Competent persons will assist you to select the right product. Best regards, Angelika Strixner. General Manager
July/August 2011 - MUNICIPAL UTILITIES e.g. WATER SUPPLY, WASTE WATER TREATMENT AND DISPOSAL. Very often big quantities of data have to be collected and checked in central stations. Owing to the system net work with line splitters the data can flow faster and without any disturbance from each addressed office to the control station. These stations check e.g the height of a liquid level or the capacity of a pump. Data transmission is code transparent and no transfer speed settings are necessary. Do you wish more information please do not hesitate to call us. We would like to help you. Best regards, Angelika Strixner. General Manager
May/June 2011 - NETWORK OF WIND PLANTS. For the network of wind plants our line splitters are also used. In some of our applications all wind plants are connected with the line splitters LH-4V/LH-1V via the 4-wire current loop. All wind plants are equipped with addressable substations. For the RS232/RS485 participants the network seems to be a common bus by using line splitters. Have you questions? Would you like to test our line splitters? No problem. Just let us know. We like to support you and we are looking forward to receiving your inquiry. Best regards, Angelika Strixner. General Manager
March/April 2011 - PUMPING STATIONS. We received many inquiries for water and waste water plants during the last weeks. Pumping stations lie along a pipeline at various distances from each other. A telecommunications cable has been laid parallel to the pipeline. All stations shall communicate with the monitor control center. In this case they use our LH-1V. The monitor control center is connected to each pumping station over a common leased line. Between the individual stations, transmission distances up to 21 km are possible because after each line splitter the freshly amplified data is passed on. In our line splitter booklet you will find an application example on page 15. In another situation our LH-4V are used. A Siemens S7-300 controls the pumps in the wells. They communicate via Profibus. Please do not hesitate to contact me if you have any questions. Best regards, Angelika Strixner. General Manager
January/February 2011 - LINE SPLITTER APPLICATIONS. In our linesplitter booklet you will find several examples of network-applications with line splitters. A large number of drawings and descriptions clearly shows the great variety of uses: e.g.in the water and waste water industry, in the security industry for fire control stations, in parkleading systems, on airports, in the mining industry, for cable way stations, video controlling or for tunnel network. If you use line splitters you get a reliable and safe data transmission via copper and fibre optic cables. You find the booklet here in the internet. If you want I send you the linesplitter booklet. I wish you a good start. Best regards Angelika Strixner, General Manager
Christmas 2010. Christmas is forever, not for just one day, for loving, sharing, giving, are not to put away like bells and lights and tinsel, in some box upon a shelf. The good you do for others is good you do yourself.

Thank you sincerely for the dedicated cooperation in the past year. I wish you and your loved ones a blessed and merry Christmas and happiness and success in the New Year. With best regards. Angelika Strixner, General Manager.
Autumn 2010 M-1A. In September I visited in Husum the HUSUM Windenergy 2010, the world?s biggest wind energy trade fair. More than 800 exhibitors from 30 nations are showing at this fair. It was an eventful day here in Husum. I received an inquire for a 4..20mA interface extension. With a M-1A short-haul modem a 4..20mA current loop can be extended up to 10 km (2,400 bits/s) to another M-1A. Both devices are galvanically insulated from each other. M1A_EH Are there questions? Or can I help you? Please don?t hesitate to phone or send an e-mail or fax. I wish you a further good autumn. email: strixner@hedintex.de
Summer 2010 H-5H for a long distance. We got several inquiries for a ProfiBus transmission – but for a long distance. The H-5H converts the RS485 interface into the powerful M-1 modem interface and transmits the data up to 12km with a transmission rate of 9600 Bit/s over 4wires (2 pairs). The following characteristics present the short-haul modem H-5H: Protocol and speed independent for many field bus protocols; Simple installation; Short turn-around time. May we help you? Do you have questions? We are at your disposal. I wish you a pleasant summer time. Angelika Strixner, General Manager
MARCH/APRIL 2010. Hedin Tex delivers industrial modems worldwide. This year we received inquiries and delivered modems to Australia, Dubai, Italy, Austria, Taiwan and to Czechia. Many of our German customers work abroad, thus making our modems used worldwide. Line splitters are utilized in all areas of automation technique. Ours are reliable and easy in handling. Data transmission is code transparent and no transfer speed settings are necessary at installation. Here you'll find an application example: - RS485 network with long transmission - Please do not hesitate to contact us if you have any questions. Around the-clock, we are at your disposal. With best regards from Heikendorf. Angelika Strixner, General Manager. Phone: +49 431 243 591 Mobile: +49 175 272 227
JANUAR/FEBRUARY 2010. Our customers finalized many projects in the 2nd half of 2009. So we delivered a lot of line splitters. These were used in different areas, also worldwide, e.g. in water and waste water plants: network of pump stations and sewage works, worldwide e.g., in utilities industry: substations and power supply systems. We are looking forward for new projects. Have you any questions, please let me know. I wish you all the best for the year 2010 and I am again looking forward to a good cooperation this year. Best regards. Angelika Strixner, General Manager. telefon: +49 431 243591. Mobile: +49 175 2722277
DECEMBER 2009. I wish you a pleasant Advent season and a Merry Christmas - health, luck and success for the New Year. With best regards from Heikendorf, Angelika Strixner, General Manager.
AUTUMN 2009. RS485 Star nets was often a project our customers during the last weeks. They work with a Master/Slave communication. The tributary stations are separated at various distances. An application example you find here. For any information you should need, do not hesitate to contact me at any time. I wish you a nice autumn. Angelika Strixner, General Manager.
AUGUST-SEPTEMBER 2009: SERVICE. Beside highly qualified products we offer an above-average service level. During recent weeks this has again been confirmed by our customers. All inquiries and orders are answered as soon as possible. We can be contacted round the clock. We deliver worldwide. Also this year we have delivered many modems all around the world. In one project there was PROFIBUS efficiency problems. Now here the modems H-5H were used. RS485-data can be transmitted up to 12 km at 9600 bps, independent of code and protocol and without delay. The customer was content with the performance and will use these modems further on. The line splitterbooklet with application examples, the product information and all data sheets and installation manuals you will find here on internet. If you like I will also send you information material. Please do not hesitate to contact me if you have any questions. With best regards from Heikendorf. Angelika Strixner, General Manager. mobile: +49 175 2722277
JUNE-JULY 2009: LINE SPLITTER LH-4V. In many projects our customers use line splitters. The LH-4V divide a V.24-/M-1 modem connection into a RS485/V.24 interface and a V.24- / M-1 modem interface. This, for example, enables several RS485 networks at some distance from each other to be connected to a common station via the 4-wire M-1 modem interface, or enables several adressed input devices distributed in different buildings with RS485/V.24 interfaces to be connected to a common network. The data flow direction supports any master/slave networks and multimaster networks (token passing). The line splitters are easy to install, equipment will without effort be put into operation. The LH-4V is working with a voltage of 24V DC. Do you need a voltage of 230V AC you can work with the table model LT-4V. Do you want more information about our line splitter? Can we help with the elaboration of your projects? Please let me know. With best regards, Angelika Strixner. General Manager. mobile: +49 175 2722277
APRIL-MAY 2009: RS485 NETWORK. In a sewage plant pumping stations are spatially arranged in teo lines to the main control center. The pumping stations are connected by Profibus DP communication lines with the control system. A multipoint connection has to be realized so that the pumping stations can be supervised and serviced by the central control system. The distance exceeds 1 000 m and the leased lines are of a bad quality. Here our line splitter is required. The LH-4V converts the RS485-interface into the efficient
M-1 current interface and transmits the data delay-free, galvanically isolated and without interference even with bad cables between the pumping stations. By malfunctions the bypass function of the line splitter protects the communication system while the failed unit is bridged and the other substations are available for further communication. Applications for line splitters you will find in the line splitter booklet. A large number of drawings and descriptions clearly shows the great variety of use. In case you need some more information please do not hesitate to contact us at any time. With best regards, Angelika Strixner. General Manager. mobile: +49 175 2722277
FEBRUARY-MARCH 2009: LINE SPLITTERS. In January we have gotten a lot of inquiries for our line splitters. They will be used all over the world, e.g. in waste water plants, in sewage works, for fire control stations, for video controlling and for building automation. In some cases we immediately shipped line splitters for evaluation. The tests were successful, we delivered the modems and received new orders. Reliability and safety are of first priority for our customers applications. With line splitters you get reliable and safe data transmission via copper and fibre optic cables. After each line splitter the maximum transmission distance is again available. This way you reach terminals even at a far distance and, as well, these applications can be expanded every time. You will find examples of applications in the line splitter booklet. A large number of drawings and descriptions clearly shows the great variety of uses. If you like we will send you information material. I wish you a nice time. Angelika Strixner. General Manager. mobile: +49 175 2722277
JANUARY 2009. If you want to extend water and waste water plants, or to build a network for fire control stations or video cameras or to have a remote reading system for long distance pump stations or do you think of connecting the heating control system of a district heating system with the boiler house? Is it e.g. Profibus or Modbus? Do you need a steliform structure or a line network? Do you want to mix these structures? These are only some of the questions we get. For all these projects you can use our line splitters. Application examples you will find here in internet in our line splitter booklet. If you like I will send you our information material. I wish you a good start for 2009. Angelika Strixner. General Manager.
DECEMBER 2008. Snow falls over the trees, still and calm is the sea.... The year past over very fast and again people sing Christmas songs and children learn poems. Soon there is Christmas. I wish you and your family a Merry Christmas and a happy and successful New Year. Thank you very much for your confidence and the pleasant cooperation. Best regards from Heikendorf. Angelika Strixner. General Manager.
OCTOBER/NOVEMBER 2008. In salt mines e.g. our line splitters are used for the control of band conveyors. In this case you work with the Modbus-protocol. The significant interface functionality makes steliform, bus-like or mixed structures possible. Using our line splitters you have in each of these systems a codetransparent and safe data transmission. The easy way to install the line splitter supports the putting into operation of the equipment – there are no transmission rate configurations are required. Do you want more information about the efficiency of our line splitters? Do you work with other communication protocols? Please contact us. We are at your disposal. Kind regards from Heikendorf. Angelika Strixner. General Manager.
AUGUST 2008 - ALL OVER THE WORLD! There are always new applications for our line splitters and industrial modems, e.g. Australia: installation in rolling stock equipment. Germany: control of underground mining band conveyors, network of railway crossings, network of switch heating factories, network of pump stations. Dubai: remote reading system. Italy: control of railway tunnels. Canada: taking time of the running period of Biathlon. Korea: taking time of the running period of Biathlon. Malaysia: network of an airport. Norway: control of a tunnel ventilation system. Austria: control of parking and information systems, network of fire control stations, network of snow maker systems. Hungary: control of band conveyors. USA: building automation. In different ranges of applications the protocol transparency and the easy way of installation offer a fast and safe network base. More application examples you will find here in our line splitter booklet. If you like we will also send you information material. Kind regards from Heikendorf. Angelika Strixner. General Manager.
APRIL/MAY 2008 - SAFETY FIRST! More and more security and fire alarm stations are used in different places. Very often big properties are connected to one control system. If the distances between the buildings are too long Hedin Tex products will be used. This shows an example with the fire alarm system Siemens SIGMANET: The building topology of the property allows regarding the fire protection separate ways to build a communication ring system. One building is situated aside of the central point.To connect this aside building to the required system the communication interface has to be changed to the efficient M-1 interface. The protocol transparency and the easy installation offer a fast and safe base for network communication. You will find more applications in our line splitter booklet. Please do not hesitate to contact us by phone if you have questions or if you wish more information. – You are welcome. With best regards from Heikendorf. Angelika Strixner. General Manager.
February-March 2008 - LINE SPLITTERS WORLD WIDE. From customers of many years we received interesting inquiries. Many of our customers work worldwide and so they take our industrial-modems with them. That is one the reasons that you can find our products worldwide, e.g. in China or Dubai. During the last weeks we got orders and inquiries from our customers from the Czech Republic, Austria, from Switzerland, Italy and Spain. In new projects you can test our modems without any charging. Do you have questions to our products or applications? If we can do anything else for you, please let us know. We would like to support you. With best regards from Heikendorf. Angelika Strixner. General Manager.
January 2008: Line splitters with redundancy function. In Austria they tested our LH-4VR with great success.The redundancy logic of the LH-4VR guarantees that the system continues working reliably in a ring system in case of a cable disturbance. An interruption of the ring system can be controlled and analysed by a relais transmitter.The redundancy function is on the additional card OR-1.The LH-4LWL together with the additional card OR-1 makes a decoupled connection of cable connected end equipment possible to redundancy fibre optic networks. An application example you will find here in internet in our line splitter booklet (page 32). Are there questions, may I help you? Please contact me. I wish you alle the best for the year 2008 and also this year I am looking forward to a pleasant cooperation with you.Kind regards, Angelika Strixner. General Manager.
December 2007: At the end of November I visited the SPS/IPC/DRIVES 2007 in Nuremberg. It is Europe?s leading fair for the electric automation. I had again interesting conversations. "Where are your modems used mainly?" This was one of the questions e.g. Hedin Tex is a world-wide supplier of equipment for distribution, conversion and extension of serial interfaces: e.g. for control and instrumentation, telearchics and factory automation systems, for building automation , for process control, for alarm and surveillance systems and for the water and waste water plants.The inhouse modems are used in factories, airports, parking garages, tunnels, sewage works, shopping centres as well as in the mining industry for band conveyor and even more. In numerous applications line splitters are used. In our line splitter booklet you will find many examples. Please contact us if we can help. I wish you a pleasant Advent season and a Merry Christmas - health, luck and success for the New Year. With best regards from Heikendorf, Angelika Strixner. General Manager.
September/October 2007: IT IS FAIR TIME. Early in September I visited the fairs go2007 and ineltec 2007 in Basel. I saw technique of the modern building automation, industrial automation and electronic. I met some of our customers, watched interesting presentations and returned with many new and positive impressions. On September 20th I visited the fair HUSUMwind 2007. There I had also interesting discussions with customers. HUSUMwind is known as the international leading fair of wind energy. Wind energy belongs to the ecologically beneficial energy which can also be renewed. It must not be imported. It can be used locally. It will never end – that means energy for today and tomorrow. I am looking forward to the next fairs SPS/IPC DRIVES in Nuremberg and others. I hope you enjoy the autumn. Angelika Strixner. General Manager.
June 2007: LINE SPLITTERS. We received many inquiries for the following subjects: extension of water companies, connection of pump stations, distant reading of electric/water meters, system network for use in sewage works, controlling of the surface of a liquid. These are only a few examples regarding the water and waste water industry. There are many other application possibilities: e.g. in the security industry for fire control stations, in parkleading systems, on airports, in the mining industry, for cable way stations, video controlling or for tunnel network. If you use line splitters you get a reliable and safe data transmission via copper and fibre optic cables. In many applications they use Profibus. Here our line splitter LH-4V is required. After each line splitter the maximum transmission distance is again available and the bypass function gives a high level of dependability. More application examples you will find in internet in our line splitter booklet. If you like we send you information material. May we help you? Do you have questions? We are at your disposal. I wish you a pleasant summer time. Angelika Strixner. General Manager.
March 2007: PUMPING STATIONS. We received many inquiries for water and waste water plants during the last weeks. Pumping stations lie along a pipeline at various distances from each other. A telecommunications cable has been laid parallel to the pipeline. All stations shall communicate with the monitor control center. In this case they use our LH-1V. The monitor control center is connected to each pumping station over a common leased line. Between the individual stations, transmission distances up to 21 km are possible because after each line splitter the freshly amplified data is passed on. In our line splitter booklet you will find an application example on page 15. In another situation our LH-4V are used. A Siemens S7-300 controls the pumps in the wells. They communicate via Profibus. Please do not hesitate to contact me if you have any questions or if you want up-to-date information papers. You are welcome. I wish you a pleasant month of March. Angelika Strixner. General Manager.
NEW February 2007. District heating meets RS485 network. Application:

February 2007: District heating meets RS485 network. A combined bio heat and power station supplies approx. 120 houses with district heating. With the heat pipe line a communication cable was laid into each house. Because of this a large cable length was made. Under point "New" you will find an application example. In this application our line splitters LH-4V are used. With the line splitters you can choose between a star-, bus- or redundant network design. These modems support many field bus protocols. Any questions, can I help you? Please don't hesitate to contact me. With best regards from Heikendorf, Angelika Strixner, General Manager
January 2007: 12 KILOMETERS RS485. During the last weeks we got several inquiries for a ProfiBus transmission – but for a long distance. In this case you can use our short- haul modem H-5H. By using the H-5H you can bridge 12 kilometers with a transmission rate of 9.600 Bit/s. For some applications this was the ideal solution. You can use the H-5H for a point-to-point connection as well as for parallel connections. I wish you all the best for the year 2007 and I am again looking forward to a good cooperation this year. Best regards, Angelika Strixner, General Manager
December 2006: INFORMATION AND CHRISTMAS GREETINGS. Our industrial modems offer numerous possibilities for many different applications. In most cases our line splitters are used. Besides there are interesting applicabilities in the area of cable way stations, e.g. for the communication between pc and weather stations, access control systems, snow cannons and bulletin boards. Since July 1, 2006 we deliver RoHS-compliant products (some types even earlier). The change has worked well. Processes had to be adapted and it was necessary to change machines and tools and many different components have to fulfil the requirements. I wish you a pleasant and peaceful Christmas and all the best, health and success for 2007. Thank you very much for choosing us and the continually good cooperation. Best regards, Angelika Strixner, General Manager
Oct 15th, 2006: Meetings in Austria. I visited many customers in Austria at the beginning of October. Our industrial modems offer many possibilities for numerous applications. In a bioheating compay they use our LT-2G and H-5. It was interesting to see this heating system. In a cableway station our short haul modems M-1 are installed. In the same application fire control stations are connected with our H-5H. Another customer uses our line splitters. Now he has to bridge a long distance. In this case he takes our H-5H. The H-5H converts the RS485 interface to a powerful M-1 modem interface and transmits data up to 12 km with a transfer speed of 9600 Bit/s by a 4-wire-connection. Our customer receives test modems without any charge. Finally I visited the fair "vienna-tec" 2006 in Vienna. Several fairs were here combined. I was interested in the automation austria, energy-tec and the measuring technique. I left Vienna when the sun was shining brightly and I wish you and all of us a golden October. Best regards, Angelika Strixner, General Manager
August 2006: During the last weeks we received many inquiries. Among others Profibus applications were mentioned. One of our customers tested our line splitters successfully. About this subject you will find an application example in the internet or on page 16 in our line splitter booklet. In another case several RS485- members were combined to a common bus with a 19" rack RV-1. This was realized with plug-in cards and line splitters. Page 20 in our line splitter booklet shows an application example for this. Are there questions, or can we help you ? Please don't hesitate to phone us or send an e-mail or fax. We are at your disposal. I wish you a further good summer time. Best regards, Angelika Strixner, General Manager
May 2nd, 2006: FAIRTIME. It is always very interesting to visit fairs and to have good discussions. This time it was the Hanover Fair 2006/Interkama+. In May I will visit the Wind/Energy 2006 in Hamburg. I wish you a pleasant May. Angelika Strixner, General Manager. Under item NEW you find an application with our line splitters LH-4V. Our customer is very pleased with this solution. The remote reading system in the water company now runs perfectly.
February 3rd, 2006: WINTER 2006. We got an inquiry from Austria. We sent modems for test purpose and it worked well. Our customer is very pleased with our solution. Attached you find an application example. Kind regards from Heikendorf. Angelika Strixner, General Manager
January 6th, 2006: 2006. I wish you a good, healthy and successful New Year. Also in 2006 Hedin Tex will be pleased to support your projects and inquiries. I am looking forward to our cooperation. Best regards, Angelika Strixner, General Manager
December 12th, 2005: CHRISTMAS. Every day a new picture. The advent calendar was created in the beginning of the 20th century. Today it is unthinkable to live without it. However, you can follow its origin until the 19th century. The Protestants had the first ideas. During the month of December religious families put 24 pictures on the wall. The simple version was the so called ? chalk line calendar? with 24 lines on the wall. The children of those families were allowed to wipe off a line every day. Soon all advent calendars are open and then finally we have Christmas. I thank you very much for the pleasant cooperation and I wish you Merry Chrismas, all the best and success for 2006. Angelika Strixner, General Manager
October 21st 2005: LINE SPLITTERS. From Austria we got in September an inquiry for a point-to-point connection. We sent modems for test purpose and our new customer was very happy that he finally found a solution for his protracted problem. We got more inquiries from customers who want to use line splitters for distant reading of different fare distance stations. You can do line network as well as a star net. The significant interface functionality of our line splitters makes steliform, bus-like or mixed structuring possible. The line splitter does not impose any hardware limitations on the participants. To this topic you will find application examples in our line splitter booklet here in internet. I really would like to send you the booklet by mail, too. email: strixner@hedintex.de Phone: +49 431 243591 Telefax: +49 431 245720 Mobile: +49 175 27 222 77 I wish you a pleasant autumn and I am looking forward to hearing from you. Angelika Strixner, General Manager
July 13tht 2005: REDUNDANT DATA RING SYSTEMS. Besides Denmark we got inquiries from Italy, Austria, from Switzerland and from the Czech Republic regarding applications with line splitters. They had some questions: How many line splitters can be put together in one line? Which distance is possible? Using our line splitters there is no limit for the whole distance if the distance between 2 line splitters is not longer than 21 km. The significant interface functionality makes steliform, bus-like or mixed structuring possible. Which protocol the modems work with? The communication data will be transferred code-transparently, the addressing of the terminals occurs from the software side so that many master/slave or token-passing protocols operate without limitation. No transmission rate configurations are required. What happens if a power failure occurs? The bypass function of the line splitter gives a high level of dependability. In case of a power failure the device is overridden thus preserving the communication along the line. You will immediately notice where the malfunction is situated. If you have also questions to our line splitters, please call or send an email. We are at your disposal and we are loooking forward to hearing from you. I wish you a pleasant summer time. Angelika Strixner, General Manager
May 20th 2005: REDUNDANT DATA RING SYSTEMS. With our line splitter LH-4VR you can realize a data ring system. The redundancy logic makes it possible to keep up the communication between all connected units even in case of a cable interruption. The cable interruption will be shown by a relay switch at the LH-4VR concerned. In case of failure of a LH-4VR the equipment is bridged by the BYPASS function and the redundant data ring keeps closed. In our line splitter booklet (as well as here in internet) you will find an application example on page 31. E.g. you will find these applications in municipal waste water plants. There pumpstations will be connected with the central control system ( e.g. Profibus DP as communication protocol). We really would like to send you our line splitter booklet. If you need some more information we are at your disposal. With best regards, Angelika Strixner, General Manager
March 17th, 2005: CeBIT 2005 - ISH 2005. After visiting the CeBIT 2005 in Hannover I went directly to Frankfort to the fair ISH 2005. On both fairs I met our customers and I had many intersting conversations. Beside the good quality of our products they again spoke highly about our outstanding service. Prompt reply to your questions. Immediate delivery ex stock after receiving the order. You will find in internet under www.hedintex.de the line splitter booklet with application examples as well as all data sheets and installation manuals. Availability around the clock. WE ARE AT YOUR DISPOSAL. I wish you a nice spring time. Angelika Strixner, General Manager
January 2nd, 2005: NEW RAILING MOUNTING FIXTURE AVAILABLE. From now on our H-series is available with a new rail mounting fixture. The mounting foot will be longer and there will be a second hook on the back panel of the modem. If you have any further questions do not hesitate to call us or send us an email or fax. We wish you all the best and a successful year 2005. Angelika Strixner, General Manager
CHRISTMAS 2004. Christmas Greetings. Sing hey! Sing hey! For Christmas Day; Twine mistletoe and holly, For friendship glows In winter snows, And so let's all be jolly (Traditional). I wish you and your family a joyful Christmas season and a peaceful turn of the year. All the best for 2005! Angelika Strixner, General Manager
October 2004: Large V.24/RS232 Networks. Prerequisite: In a summer house settlement the electric/water meters have to be read out remote. Because of the size of the settlement master control units must be placed in order to seize subareas. The addressable master control units transmit the data by RS232 to the main control station.

Realization: LT-1VLine splitter with V.24/RS232 interface.

Description: The M-Bus supports up to 250 substations and 1000m cable length, which is sufficient in many cases. Due to the expanded summer house settlement the cable lengths are exceeded and a formation of segments is necessary.

The line splitter LT-1V converts the V.24/RS232 into the efficient M-1 modem interface, without a change of the communication parameters of the bus participant. A transmission distance between 2 master control units of 4000m with 9600bps is possible, whereby potential differences and interferences are ignored. The individual segments can be built up to a network without additional communication changes.

In case of failure of a LT-1V, the equipment is bridged by the bypass function and the communication remain without the repeater function.

October 22nd, 2004: FAIR TIME. I visited the fairs NORD ELEKTRO 2004 in Hamburg and the InnoTrans 2004 in Berlin in September. There I met many customers and beside other things we talked about the distant reading of electric/water meters in a summer house settlement. Go to the "New" page for an application example. I will be on a business trip in Budapest at the end of October. After that I will go to the IFM 2004 in Dresden and then visit the SPS/IPC/DRIVES 2004 in Nuremberg at the end of November. Autumn is fair time! Have a good time in autumn. Angelika Strixner, General Manager
August 27th, 2004: LINE SPLITTERS. Now the holidays are nearly finished. I hope you had a pleasant time. Although there were vacations we received many orders, shipped big quantities of modems and got new interesting inquiries. From abroad we received among others a request for a systemnetwork between several airports. In this case they can use our line splitters. With line splitters you can reach stations with fare distances and you have the possibility to extend these applications at any time. On page 16 in our line splitter booklet you can find an example for a RS485-line-network with our line splitters LH-4V. Do you have questions to our products? Can I help you? Please don?t hesitate to contact me. I wish you a nice Indian summer. Angelika Strixner, General Manager
June 10th, 2004: NETWORK OF WIND PLANTS. For the network of wind plants our line splitters are also used. In our application all wind plants are connected with the line splitters LH-4V/LH-1V via the 4-wire current loop. All wind plants are equipped with addressable substations. For the RS232/RS485 participants the network seems to be a common bus by using line splitters. Would you like to test our line splitters without any charge? No problem. Just let us know. We like to support you and we are looking forward to receiving your inquiry. Angelika Strixner, General Manager
March 17th, 2004: MUNICIPAL UTILITIES e.g. WATER SUPPLY, WASTE WATER TREATMENT AND DISPOSAL. Very often big quantities of data have to be collected and checked in central stations. Owing to the system net work with line splitters the data can flow faster and without any disturbance from each addressed office to the control station. These stations check e.g the height of a liquid level or the capacity of a pump. Data transmission is code transparent and no transfer speed settings are necessary. Do you wish more information please do not hesitate to call us. We would like to help you. Angelika Strixner, General Manager
January 15th, 2004: SYSTEMS NETWORK OF SEWAGE WORKS. Some projects and applications, planned in the last year, will be concluded within the next weeks. This means for example systems network of sewage works. Regarding the position of the data cables it is necessary to use a combination of a star net and a line network. This connection is possible with our line splitters and you get a transparent network. You?ll find examples in our line splitter booklet or please phone me. I wish you a good start. Angelika Strixner, General Manager
December 15th, 2003: WHITE CHRISTMAS. I'm dreaming of a White Christmas, just like the once I used to know, where the treetops glisten and children listen, to hear sleigh bells in the snow. I am dreaming of a White Christmas, with every Christmas card I write, may your days be merry and bright, and may all your christmases be white. I wish you and your families a Merry Christmas and a successful, healthy and Happy New Year 2004. Many thanks for the excellent cooperation and the confidence shown. Best regards. Angelika Strixner, General Manager
October 15th, 2003: Autumn exhibition time. In September I visited the HUSUMwind 2003 in Husum - the world's largest exhibition for wind energy equipment and in October I went to the Elektrotechnik 2003 in Dortmund. Both fairs were very interesting. I talked about: Profibus, Modbus, C-Bus, Line Network, Star Net, Copper or Fibre Optic, Line Splitters for controlling or RS485 point-to-point-connections about large distances. For all these applications you can use the industrial modems of Hedin Tex. In November I will visit the IFM 2003 in Dresden ( a special exhibition for production technology, automation systems and quality assurance) and I will also go to the SPS/IPC/Drives 2003 (electrical automation) in Nuremberg. I am looking forward to both events. Angelika Strixner, General Manager
NEU: August 2003 Secure C-bus connections. Physically the RS485 interface is well-known as safe transmission interface. Potential differences and interferences are compensated. However a disturbance at a bus participant can affect the whole RS485 bus. Because of a cable interruption it can happen that not only the cut off RS485 bus section will be missed but also the whole RS485 system is disturbed by a wire short-circuit or opened wire ends. A data communication with a LH-4VR is different. The RS485 is converted into the powerful M-1 modem interface without a change of the C-Bus communication parameters. The transmission distance between 2 bus participants is increased, whereby potential differences and interferences are ignored. The redundancy logic of the LH-4VR guarantees that a ring system can be realized, so that in case of a cable interruption the system continues working reliably. The cable interruption is signaled over a contact to the LH-VR concerned. In case of failure of a LH-4VR the equipment is bridged by the bypass function and the redundant communication ring remains closed: Protocol and speed independent for many field bus protocols; By-pass function; Simple installation; Short turn-around time
August 29th, 2003: Summer, Sun, Sand... I hope you had a nice summer time and beautiful holidays.In the North of Germany the summer seems to end and the first storm has arrived. We got an inquiry from Switzerland: Line network or redundant ring system. Both is possible. Now they check and test. Our LH-4VR line splitter can be used for the redundant ring system. An application example you find under the item: New. Please call us if you need some more information or if we can do anything else for you. We are at your disposal and looking forward to hearing from you. I wish you a nice month of September. Angelika Strixner, General Manager
May 26th, 2003: Line splitters for fibre optic network. We got new inquiries for applications for fibre optic networks. That means our line splitter LH-4VLWL can be used. If you wish we can equip the LH-4VLWL with a redundance extension. During a break in the fibre optic ring the communication remains with all partners. Another application requires the change from the TTY/20mA interface to fibre optic. Even in this case the line splitter LH-4VLWL can be used. Since the end of 2002 we equipped some units addionally with the TTY/20mA interface. The LH-4VLWL is also provided with the RS485/RS422/RS232 interface. The line splitter is operated with a supply voltage of 24V DC. Here in the internet in our line splitter booklet you will find more details about the fibre optic ring system, the RS485 bus with fibre optic, the fibre optic star net or the line net. Do you need more information? Do you want to test our modems without charge? So please ring up! I wish you a pleasant month of June and remain with best regards, Angelika Strixner, General Manager
April 1st, 2003: ISH 2003. "You deliver quality and best service. Your modems are installed since 10 years without any problems". These sentences I heard from our customers on the ISH fair in Frankfort. I was very pleased. Among others one topic was the serial data transfer over great distances. Information about this you will find under point: New - or just ring me up. I wish you happy Easter. Angelika Strixner, General Manager
NEU February 2003: 12 kilometres RS 485. Physically the RS485 interface which is often used for ProfiBus and ModBus is conceived for long transmission distances up to 1200m but sometimes this distance is not sufficient for networking. In such cases a repeater must be used, to bridge the developed distances. However, the distance is extended again only by 1200m. If outside bus participants have to be connected to the RS485-Bus the solution with a repeater is often not sufficient. Here the short-haul modem H-5H helps reliably without special bus adjustments. The H-5H converts the RS485 interface into the powerful M-1 modem interface and transmits the data up to 12km with a transmission rate of 9600 Bit/s over 4wires (2 pairs). The following characteristics present the short-haul modem H-5H: Protocol and speed independent for many field bus protocols. Simple installation. Short turn-around time
February 5th 2003: Short Haul modem H-5H. The first month of the new year is over. Large quantities of our products are already delivered and we had the opportunity to welcome new pleased customers. Besides inquiries for line splitters we got applications where they have to bridge greater distances. This is where to use our short-haul modem H-5H. With a boudrate of 9.600 you can tranfer data up to 12 km. You can find an application example on our homepage under: New. Please let us know if you need some more information. We are looking forward to your phone call, e-mail or fax. I wish you all the best and success for 2003. Angelika Strixner, General Manager
December 18th: CHRISTMAS 2002. I had some business dates in Italy, e.g. Genoa, at the end of November. This year we delivered a big quantity of line splitters to Genoa. In Milan I visited the exhibitions BIAS 2002 and SICUREZZA 2002 both are automation fairs. In Genoa the sun was shining and the thermometer showed 18 degrees above. Then I flew to Nuremberg. There were 4 degrees above. On the fair SPS/IPC/DRIVES 2002 I met some of our customers. It was again very interesting. Time went by very fast and soon we will have Christmas. I wish you and your family a merry and contemplative Christmas, health and satisfaction. I thank you very much for the good cooperation during the year 2002 and wish you a peaceful turn of the year. Best regards. Angelika Strixner, General Manager
October 23rd: SECURITY 2002. The fair SECURITY 2002 in Essen is worldwide one of the most important meeting points of the security industry. I talked to many of our customers and also met new customers of the year 2002. There are many possibilities to work with our line splitters and modems. During the last weeks different projects were equipped with our short haul modem H-5H ( RS485 extension with a longer transfer range). Our customers need our modems e.g. in the fire alarm equipment, control and surveillance equipment, access control system and attendance data acquisition , video control system and in the controlling equipment in building management systems. My visit was again very informative and interesting. On the exhibitions SICUREZZA and BIAS 2002 in Milan in November I will meet again customers. After that I visit the SPS/IPC/DRIVES 2002 in Nuremberg. I wish you a pleasant November. Angelika Strixner, General Manager
July 10th, 2002: Fibre optic network. We got a new project for a fibre optic ring system. It is possible to work with our line splitter LH-4VLWL. A closed redundant ring system you can build with the line splitter LH-4VR. But this is a network with copper cable. From Helvetia we also received an inquiry for a fibre optic application. But they look for a point to point connection. Here the M-5LWL is required ( RS485). Some units are already shipped. From South America we got another inquiry. They also want to do a fibre optic network. In Taiwan they need short haul modems and in Italy there will be further tunnel applications with line splitters. I wish you a nice holiday and all people who have to stay at home and have to go to work. I wish successful days. Angelika Strixner, General Manager
May 31st, 2002: Tunnel network in Italy. We got an inquiry from Italy in March. They planned a project for a tunnel lighting system. We got the order and in June we will deliver 200 line splitters to our Italian customer. In Switzerland, country of tunnels, they also test line splitters for a project in Argentina. I wish you a pleasant and sunny month of June. Angelika Strixner, General Manager
NEW April 2002: RS486 Fibre optic network. The RS485 as a standard interface for different communication protocols is often used on copper wires for data communication over long distances or for bus communications. At critical applications in environments with strong interferences (power stations, production enterprises) the copper wires can be transferred by a converter to fibre optic cable. The fibre optic lines prevent communication problems on the distance, are tap-proofed, insensitive to potential differences and other outside effects between buildings. There is also no overvoltage protection necessary. However if a fibre optic bus connection is needed for RS485 clients with copper links, many converters are necessary. To simplify this a device with 2 fibre links and a copper interface is needed -- the line splitter LT-4VLWL. For a RS485 client which is connected by a line splitter to a fibre network it looks like a connection to copper wire network. Because of the protocol no modifications are to be made opposite to a copper wire bus.
April 9th, 2002: Access control systems by fibre optic network. From Switzerland we got an inquiry about 18 short-haul modems M-5LWL, that is the interface RS485. With the line splitters LT-4VLWL/LH-4VLWL you can integrate without any problems many different stations with copper wires into an existing fibre optic network. The line splitters have 2 multimode and 1 serial interface. For all clients the glass fibre network appears over the line splitter hook-up as a common bus. It depends on the requirement whether you use the interface RS232/RS422 or RS485. Do you want more information? May we assist? Please ring up. We like to be involved. Angelika Strixner, General Manager
March 22nd, 2002: Line splitters for Hungary and Italy. There are more applications for line splitters. This week we got an inquiry from Hungary and we sent line splitters for test purposes to Italy. The tests were successful. Next week I will be in Italy and will inform myself directly. It is very exciting whether we will soon ship a big quantity of line splitters. Angelika Strixner, General Manager
Feb 22nd, 2002: BUDAPEST Magyarregula 2002. It was my first visit on a fair in Hungary and I liked it very much. Beside many interesting discussions on the Magyarregula 2002 about serial datacommunication with line splitters I also had some time to make sightseeing in Budapest. I was really fascinated by the different architecture ot the buildings. Especially during night it is a very nice view to the Buda Castle Palace, the Parliament, the Chain Bridge, the Gresham-Palace and the Citadel. I am really keen on knowing when we will deliver the next modems to Hungary. Viszontlátásra! Angelika Strixner, General Manager
Feb 11th, 2002: Extension of sewages. We received inquiries from the water and waste water industry. Here our line splitters can be used. Reliability and safety are of first priority for our customers' applications. For test purposes LH-1V and LH-4V were shipped directly. The tests were successful. Our new customers were as happy as we. Applications for line splitters you will find in the line splitter booklet. Best regards, Angelika Strixner, General Manager
Jan 16th, 2002: New product information. The new product information catalouge is now finished and is at once available for you in internet. If you prefer we can also send the catalogue by regular mail. You can contact us by E-mail: info@hedintex.cls.net or by phone : +49 431 243591. If we can help you, please give us a call. Angelika Strixner, General Manager
Jan 8th: January 2002. The New Year has started. The 1st inquiry came from Vienna, the 1st order we got from Nürnberg. ''Is it possible to extend the RS422 interface by further 4 km?", this was the next question. A safe solution for this is the conversion of the RS422/RS485 interface to the M-1 modem interface (4-wire). Modems for test purpose were shipped at the same day and I think our customer will be pleased. I wish you a good start. Angelika Strixner, General Manager
Dec 20th: Christmas 2001 - A Catch by the Hearth. Sing we all merrily Christmas is here, The day that we love best Of the days in the Year. Bring forth the holly, The box, and the bay, Deck out our cottage For glad Christmas-day. Sing we all merrily Draw around the fire, Sister and brother, Grandsire, and sire. Traditional from England. I wish you and your families a Merry Christmas and a successful, healthy and Happy New Year 2002. Many thanks for the excellent cooperation and the confidence shown. Angelika Strixner, General Manager 
Dec 5th: SPS/IPC/DRIVES 2001. On the SPS/IPC/DRIVES in Nürnberg national and international exhibitors presented their solutions for the automation system. They offered components as well as the complete application for the system. I was a visitor and it was very interesting for me. Many of our customers were exhibitors and they were very pleased with the result. With our industrial modems for a safe serial data transmission we are involved in many solutions for the automation system. I heared many compliments about the simple handling of our modems, the safety of the bypass function and also about our qualified and fast service. I wish you a pleasant Advent season. Angelika Strixner, General Manager 
Nov 16th, 2001: Milano - Arezzo - Vicenza. Many people go to Tuscany to spend their holidays there. I visited customers in the North of Italy and in Tuscany. It was wonderful to go by train through this gorgeous landscape. In Sicily a railway-tunnel-application for a safety-light-system will be finished soon with line splitters. Our customers think of further applications with line splitters also in connection with fibre optic and redundant ring systems. Cordiali saluti. Angelika Strixner, General Manager 
Oct 10th, 2001: Düsseldorf and Brno. To my regret the Interkama 01 in Düsseldorf (Germany) and the MSV 01 in Brno (Czechoslovakian Republic) took place at the same time. Many exhibitors and visitors at both fairs were sorry about that. I visited the Interkama and the MSV and that was a good decision. On both fairs I met customers and got to know new companies. Within the next time they plan to test our line splitters. One company in the Czechoslovakian Republic already tested the line splitter LH-1V with good result. They plan to install it in future. I hope you will spend the autumn in good health. Angelika Strixner, General Manager 
Oct 1st, 2001: HEDIN TEX INFORMATION AT THE BEGINNING OF AUTUMN. * Line Splitters worldwide. * Places where to install. * Application examples. Dear Sir/Madam, during the last weeks we delivered a big quantity of Line Splitters worldwide. For one reason there was the safety of data communication according to the BYPASS-FUNCTION very important , and in other cases several networks at some distance from each other had to be connected to a common station. Here the Line Splitter LT-4V/LH-4V was installed. It has 3 interfaces which can be regulated indepently from each other. In each case 2 ports can be configurated as RS232 interface or M-1 Modem interface. The 3. port can be adjusted to RS232 or RS485 interface.The Line Splitters support any Master/Slave and Multimaster networks. Abroad Line Splitters were installed for example: Austria: for data communication of a park-ride-system, for a data system network to be used in sewage works. Austria + Italy: for a railway tunnel application for a safety-light-system. Hungary: for controlling of band conveyor. Australia: for data communication on rollingstock equipment. Egypt: for data communication within a cement factory. Malaysia: for data communication within an airport. Also in Belgium, Denmark, in the Netherlands, in France, Great Britain, Ireland, Israel, Poland , Portugal, Czech-Republic, Spain, in Switzerland and in Saudi Arabia our Customers installed Line Splitters. Line Splitters can be used in various areas: in water- and waste water plants, in alarm and surveillance systems, for building automation systems, with HVAC-systems as well as with time registration-, passage control- and communications systems. Application examples you find in the Line Splitter booklet on our CD-ROM and here on internet. If you have any questions or if we can support you so please ring up. We wish you a wonderful autumn. Yours, Hedin Tex GmbH 
July 31st: Summer 2001. It is summer in the North of Germany and nearly all our foreign business friends have summer, too. But also in summer and holiday time our customers plan their projects for the 2. half of 2001. We have new applications for water and waste water plants. The line splitters are used for controlling and receiving data from great distance stations. So we received for example an inquiry from Dubai. You will find more information in our line splitter booklet and under item Line Splitters, or please call me. I wish you a pleasant August. Angelika Strixner, General Manager   
May 28th, 2001: Visit to Italy. I flew to Milan on May 23,2001 and was accompanied by several football fans who were rewarded for their long trip. I didn't intend to watch the football game but I visited the fair INTEL 2001. And I was also rewarded. The conversations with our Italian customers were very interesting and it was worth seeing the INTEL. These customers use our modems for tunnel applications. This year many of our line splitters are installed in Italy. Everything works well and our customers are very pleased. After a relaxing day at the Lago Maggiore I flew home and I am looking forward to my next visit in Italy. Angelika Strixner, General Manager   
April 28th: HANNOVER FAIR 2001. Grey sky, rain, no sign of spring - but when I visited the Hannover Fair I forgot the bad weather. I had many interesting exchanges of ideas with our customers. - Using Hedin Tex line splitters then you know what you have. - Using Hedin Tex line splitters an extension is possible at any time. - Your modems are running for years without any problems. Of course, I liked these statements of our customers. First priority for me is the direct personal conversation. So you are able to answer many questions immediately. Perhaps we have the chance to talk together the next time. I am looking forward to meeting you and I wish all of us sunny days in springtime. Angelika Strixner, General Manager   
Feb 20th, 2001: Line splitters for Vienna and Arezzo. Already in last October we received interesting inquiries from Austria and Italy. After visiting the Austrian company and after some test runs in Vienna a car park information system will now be equipped with our line splitters. The units are already on their way. In Italy our line splitters will be used in 3 railway tunnels for a safety-light system. For this project we have already shipped 111 line splitters. Angelika Strixner, General Manager   
Jan 22nd, 2001: Tour of Austria. On the way from Linz to Graz I drove through several tunnels for which exist - like in Italy - applications for our line splitters. It was very interesting to see these plans in Graz. After that I continued my trip and went to Vienna to other dates. Here they plan a project with our modems which may be realized at the end of March. They suggested me to come again in March because Vienna must be very pretty in springtime. So far - Servus. Angelika Strixner, General Manager
Dec 21st: Yuletide 2000 - the old year bids farewell. Many thanks for the excellent cooperation and the confidence shown. I wish you and your families a Merry Christmas and a successful, healthy and Happy New Year 2001. Enjoy these last days of the year; in snow, under the sun or at home with your kin. Angelika Strixner, General Manager 
Dec 14th, 2000: Hedin Tex information at the end of the year. 1. Good reasons to use line splitters 2. We deliver world-wide at a high service level 3. Season's greetings. Ladies and gentlemen, since 15 years we deliver industrial modems for serial data communication - short haul modems, interface converters and line splitters. Now we would like to inform you especially about our line splitters. Hedin Tex line splitters make it possible to connect several stations to a central computer. After each line splitter the maximum transmission distance is again available. This way you reach terminals even at a far distance and, as well, these applikations can be expanded every time. The bypass function of the line splitter gives a high level of dependability. In case of a power failure the device is over-rided, thus preserving the communication along the line. You will immediately notice where a malfunction is at hand. As line splitters are used for surveillance purpose, prompt delivery and excellent service are of utmost importance. Our line splitters are reliable and easy in handling. Data transmission is code transparent and no transfer speed settings are necessary at installation. Applications with line splitters are found in water- and waste water plants, in alarm und surveillance systems, for building automation systems, with HVAC-systems as well as with time registration-, passage control- and communications systems. Most of our customers are found among system suppliers, engineering consultants and others active in the fields mentioned above. We have chosen 3 application examples to present at our web-site. World-wide delivery at a high service level means to us that our support is available around the clock, free of charge, of course, and when necessary at the place where needed. Therefore you find datasheets and installation manuals in different languages at - http://www.hedintex.se. From here you can also download your own line splitter booklet with further examples of applications as well as a product overview. This information you can also find at our product CD. Besides we are always available, at all times, by phone +46 707 167 385. In this way we like to bring forth our Season's greetings. We wish you a Happy New Year and a prosperous year 2001. We also like to thank our customers for placing confidence in us and for the ever present excellent cooperation.  Yours, Hedin Tex GmbH
Sept 16th,2000: From Australia to Berlin. Line-splitters are used in Berlin as well, at the InnoTrans 2000 Fair I had very interesting conversations regarding their use. Berlin is always worth a trip. Autumn greetings, Angelika Strixner, General Manager 
Sept 12th, 2000: Line splitters for Australia. As I was in the Stockholm archipelago, an e-mail from Australia arrived. They were very happy about our web-site, and to learn about our line-splitters, useful in a number of applications. I shall be very pleased if our next customer will be from Australia. I wish you all a lot of fun with the Olympic Games. Angelika Strixner, General Manager
NEW June 2000: REDUNDANTER PROFIBUS. How important the water is, one notices only if it is missing. Public utilities and other services optimize more and more their system processes and safety standards, so that no water shortage meets us. In the way of the connecting the pumping stations to a network the security of the communication ways is likewise an important factor. During communication line interruption it may not come to an impairment of the watersupply. If 2 ways are connected to the communication units the security increases substantially, and it does not come to an impairment. The line splitter LH-4VR provides each Profibus unit with these 2 communcications ways. All Profibus units are connected by the M-1 modem interface system in a ring. The data flow direction within the ring system is handled by the LH-4VR, so that the all Profibus units do not notice this structure of ring at all. Because of the protocol- and code independent the line splitters are usable also for many other bus systems based of the interfaces RS232, RS485 and RS422. (RProfi.gif)
March 15th, 2000: SERVICE - Beside highly qualified products we offer an above-average service. Many CeBIT-visitors confirmed this. If you are one of our customers you know what I am talking about - if not let us get in touch. I am looking forward to see you on HANNOVER FAIR 2000 (March 20 - 25) hall 8, stand D31, or to receive your phone call or E-mail. Best regards. Angelika Strixner, General Manager   
March 13th, 2000: A new cement factory... is completed in Egypt. Referring to the data communication for the control network we are requested to deliver the hardware. Now planning is completed and line splitters and short haul modems are used for an expandable network in a modular design. Detlev Howaldt, General Manager 
Feb 29th, 2000: CeBIT - " We deliver worldwide " - until now into 21 countries! Now the CeBit already runs for 6 days and I am quite sure that the number of countries will increase. We continue ... Angelika Strixner, General Manager 
Feb 26th, 2000: CeBIT - " Ah, you also sell Line Splitters and Modems for Fibre Optic!" On the 2nd CeBit-day I heard this sentence very often, exchanging information while drinking coffee and eating snacks. I am very glad that were able to provide some interested visitors Fibre Optic units for a test. Angelika Strixner, General Manager 
Feb 24th, 2000: CeBIT - Now the first Cebit-day is over. We got very interesting inquiries from home and abroad and met many nice people at our exhibition stand. We will keep you informed. Angelika Strixner, Geschäftsführerin  
Feb 2000: New applications with line splitters. The well-tried method using line splitters in system design is extended by a novelty. Additional to bus- and star topologies now redundant data rings can be managed by the new line splitter LH-4VR. This function makes it possible to keep up the communication between all connected units even if the main line is broken. A broken redundant line can be controlled via a relay powered switching contact. The redundancy card can be set into the new line splitter LH-4VE as well as into the LH-4VLWL, the fiber optic counterpart. Inside the LH-4VE an RS422 interface is available additional to the existing galvanically insulated interfaces RS232 and RS485. This extension supports more connection applications in system design than before. Together with the redundancy function the LH-4VLWL supports the integration of copper-based devices into a redundancy fiber optic net. 
Feb 11th, 2000: The planning started in November in Austria ... after completion we now deliver line splitters for a data system network to be used in the sewage works in Graz, Austria. Due to the topology of existing datalines a combination of star- and linedistribution was necessary. This is managed with our line splitters, enabling a network independent of protocol. Detlev Howaldt, General manager   
Jan 10th, 2000: Additional information about our fairs. At CeBIT we are present as in all preceding years, new however is our location: Hall 15 * Stand G11 * February 24th - March 1st, 2000. Moreover, you will also be able to visit us at the Hannover Industrial Fair: Hall 8 * Stand D31 * March 20th - March 25th, 2000. Should you like to set up an appointment, or if you have any questions please don't hesitate to contact us. Angelika Strixner, General manager  
Sept 1999: New holder. Simultanously the DIN rail houses will have an added feature. A small square holder at the back plane of the box prevents, together with the existing tab washer, unwanted deinstallation from the rail. The new design is of course fully campatible with the previous one. 
Sept 1999: New assembly fixture. As of september 1999 our products for rail mounting (H-...; LH-...) utilizes a new assembly fixture. The fixture's mechanical features have been optimized in collaboration with our customers, to reach a maximum of functionality. 1.The retainment for the assembly fixture has been widened, thus providing a more stable support. 2.The screw terminals are improved. Cabling is made easier by using vein-end-sleeves. Also, all connections can now be made from left. These new features require new installation manuals.
April 6th, 1999: LINE SPLITTER APPLICATIONS. In this booklet you will find several examples of network-applications with line splitters. A large number of drawings and descriptions clearly shows the great variety of uses. The line splitter application-booklet is available in English free of charge as a PDF-file (201KB). A printed version is also available, however only in German, at your request.  
Feb 1st, 1999: PROFIBUS up to 12 km! No more PROFIBUS efficiency problems with the short haul modem H-5H. RS485-data can be transmitted up to 12 km at 9600 bps, independent of code and protocol and without delay. H-5H makes sure the adaption of many transmission systems, e.g. C-Bus.
Feb 1st, 1999: Hannover Fair 1999. Hedin Tex is also represented at the world's largest fair for industrial goods. Please find us in Hall 18 at stand EG A03. Hannover Fair from 19th to 24th of April.
Feb 1st, 1999: CeBIT 1999 approaches! As in previous years Hedin Tex will be found in Hall 17, stand A47 from 18th to 24th of March. We are looking forward to your visit!